Relevant bibliographies by topics / Laser Based Proton acceleration

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  2. Dissertations / Theses
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Academic literature on the topic 'Laser Based Proton acceleration'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Laser Based Proton acceleration"

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Li, Dongyu, Tang Yang, Minjian Wu, Zhusong Mei, Kedong Wang, Chunyang Lu, Yanying Zhao, et al. "Introduction of Research Work on Laser Proton Acceleration and Its Application Carried out on Compact Laser–Plasma Accelerator at Peking University." Photonics 10, no. 2 (January 28, 2023): 132. http://dx.doi.org/10.3390/photonics10020132.

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Laser plasma acceleration has made remarkable progress in the last few decades, but it also faces many challenges. Although the high gradient is a great potential advantage, the beam quality of the laser accelerator has a certain gap, or it is different from that of traditional accelerators. Therefore, it is important to explore and utilize its own features. In this article, some recent research progress on laser proton acceleration and its irradiation application, which was carried out on the compact laser plasma accelerator (CLAPA) platform at Peking University, have been introduced. By combining a TW laser accelerator and a monoenergetic beamline, proton beams with energies of less than 10 MeV, an energy spread of less than 1%, and with several to tens of pC charge, have been stably produced and transported in CLAPA. The beamline is an object–image point analyzing system, which ensures the transmission efficiency and the energy selection accuracy for proton beams with large initial divergence angle and energy spread. A spread-out Bragg peak (SOBP) is produced with high precision beam control, which preliminarily proved the feasibility of the laser accelerator for radiotherapy. Some application experiments based on laser-accelerated proton beams have also been carried out, such as proton radiograph, preparation of graphene on SiC, ultra-high dose FLASH radiation of cancer cells, and ion-beam trace probes for plasma diagnosis. The above applications take advantage of the unique characteristics of laser-driven protons, such as a micron scale point source, an ultra-short pulse duration, a wide energy spectrum, etc. A new laser-driven proton therapy facility (CLAPA II) is being designed and is under construction at Peking University. The 100 MeV proton beams will be produced via laser–plasma interaction by using a 2-PW laser, which may promote the real-world applications of laser accelerators in malignant tumor treatment soon.
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Pae, K. H., I. W. Choi, and J. Lee. "Effect of target composition on proton acceleration by intense laser pulses in the radiation pressure acceleration regime." Laser and Particle Beams 29, no. 1 (January 5, 2011): 11–16. http://dx.doi.org/10.1017/s0263034610000674.

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AbstractThe characteristics of high energy protons generated from thin carbon-proton mixture targets via circularly polarized intense laser pulses are investigated using two-dimensional particle-in-cell simulations. It is found that the density ratio n between protons and carbon ions plays a key role in determining the acceleration dynamics. For low n values, the protons are mainly accelerated by the radiation pressure acceleration mechanism, resulting in a quasi-monoenergetic energy spectrum. The radiation pressure acceleration mechanism is enhanced by the directed-Coulomb-explosion of carbon ions which gives a high proton maximum energy, though a large energy spread, for high n values. From a proton acceleration point of view, the role of heavy ions is very important. The fact that the proton energy spectrum is controllable based on the target composition is especially useful in real experimental environments.
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Brandi, Fernando, Luca Labate, Daniele Palla, Sanjeev Kumar, Lorenzo Fulgentini, Petra Koester, Federica Baffigi, Massimo Chiari, Daniele Panetta, and Leonida Antonio Gizzi. "A Few MeV Laser-Plasma Accelerated Proton Beam in Air Collimated Using Compact Permanent Quadrupole Magnets." Applied Sciences 11, no. 14 (July 9, 2021): 6358. http://dx.doi.org/10.3390/app11146358.

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Proton laser-plasma-based acceleration has nowadays achieved a substantial maturity allowing to seek for possible practical applications, as for example Particle Induced X-ray Emission with few MeV protons. Here we report about the design, implementation, and characterization of a few MeV laser-plasma-accelerated proton beamline in air using a compact and cost-effective beam transport line based on permanent quadrupole magnets. The magnetic beamline coupled with a laser-plasma source based on a 14-TW laser results in a well-collimated proton beam of about 10 mm in diameter propagating in air over a few cm distance.
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Joshi, Chan, Wei Lu, and Zhengming Sheng. "Progress in laser acceleration of particles." Journal of Plasma Physics 78, no. 4 (August 2012): 321–22. http://dx.doi.org/10.1017/s0022377812000669.

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Laser acceleration of particles is currently a very active area of research in Plasma Physics, with an emphasis on acceleration of electrons and ions using short but intense laser pulses. In this special issue we access the current status of this field by inviting leading researchers all over the world to contribute their original works here. Many of these results were first presented at the recent Laser-Particle Acceleration Workshop (LPAW 2011) held in Wuzhen, China in June 2011. In addition to the laser wakefield acceleration (LWFA) of electrons (Tzoufras et al.) and laser acceleration of ions (Tsung et al.), there were exciting new proposals for a proton-driven plasma wakefield accelerator (Xia et al.) and for a dielectric-structure-based two-beam accelerator (Gai et al.) presented at this workshop, and we are very pleased to have the authors' contributions on these included here.
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Yan, Xue, Yitong Wu, Xuesong Geng, Hui Zhang, Baifei Shen, and Liangliang Ji. "Generation of polarized proton beams with gaseous targets from CO2-laser-driven collisionless shock acceleration." Physics of Plasmas 29, no. 5 (May 2022): 053101. http://dx.doi.org/10.1063/5.0084870.

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We propose obtaining polarized proton beams based on CO2-laser-driven collisionless shock acceleration (CSA) of the pre-polarized HCl gas. By tailoring the density profile of the pre-polarized HCl gas, the intense CO2 laser pulse heats the plasma target and forms a strong shock that reflects the polarized protons to high energy. According to particle-in-cell simulations implemented with the spin dynamics, directional proton beams of several MeV were generated at a total beam polarization of over 80%. Simulations showed that proton spin precession occurred in the azimuthal magnetic fields generated by the Biermann effect and plasma currents. The latter was the main depolarization mechanism in the early stage of shock wave formation. For CSA at CO2 laser intensities around 1017–1018 W/cm2, the proton depolarization was insignificant and the beam polarization purity was preserved. As pre-polarized hydrogen targets were available at gaseous densities in-state-of-art facilities, CSA driven by relatively long wavelength lasers provided a feasible solution for obtaining ultra-fast polarized proton sources.
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GIULIETTI, D., E. BRESCHI, M. GALIMBERTI, A. GIULIETTI, L. A. GIZZI, P. KOESTER, L. LABATE, et al. "HIGH BRIGHTNESS LASER INDUCED MULTI-MEV ELECTRON/PROTON SOURCES." International Journal of Modern Physics A 22, no. 22 (September 10, 2007): 3810–25. http://dx.doi.org/10.1142/s0217751x07037445.

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The chirped pulse amplification (CPA) technique has opened new perspectives in the radiation-matter interaction studies using ultra-short laser pulses at ultra-relativistic intensities. In particular the original idea, proposed by Tajima and Dawson, of accelerating electrons by the huge electric fields of plasma waves which develop in the wake of a laser pulse propagating in a plasma, become feasible. Some laboratories all over the world have produced by such a technique collimated electron busts of hundreds of MeV along acceleration lengths of a few hundreds of microns. In other experiments, using thin solid targets, intense bursts of energetic protons have been at the same time detected. The proton acceleration mechanism is essentially based on the Coulomb force appearing at the thin solid target surface as a consequence of the previous escape of the energetic electrons from the target. In the paper some experimental results will be presented as well as the opportunities the INFN PLASMONX project will offer in this research field at LNF.
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Yao, Weipeng, Baiwen Li, Lihua Cao, Fanglan Zheng, Taiwu Huang, Chengzhuo Xiao, and Milos M. Skoric. "Generation of monoenergetic proton beams by a combined scheme with an overdense hydrocarbon target and an underdense plasma gas irradiated by ultra-intense laser pulse." Laser and Particle Beams 32, no. 4 (October 15, 2014): 583–89. http://dx.doi.org/10.1017/s0263034614000561.

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AbstractAn optimization scheme for the generation of monoenergetic proton beams by using an overdense hydrocarbon target, followed by an underdense plasma gas, irradiated by an ultra-intense laser pulse is presented. The scheme is based on a combination of a radiation pressure acceleration mechanism and a laser wakefield acceleration mechanism, and is verified by one-dimensional relativistic particle-in-cell (1D PIC) simulations. As compared to the pure hydrogen (H) target, protons in the hydrocarbon target can be pre-accelerated to higher energy and compressed in space due to the existence of the heavy carbon atoms, which provides a better injection process for the successive laser wakefield acceleration in the underdense plasma gas, resulting in the generation of a monoenergetic, tens-of-GeV proton beam. Additionally, for the first time, it is found that the use of the hydrocarbon target can reduce the requirement for laser intensity to generate proton beams with the same energy in this combined scheme, as compared to the use of the pure H target.
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Cutroneo, Mariapompea, Lorenzo Torrisi, Jan Badziak, Marcin Rosinski, Vladimir Havranek, Anna Mackova, Petr Malinsky, et al. "Graphite oxide based targets applied in laser matter interaction." EPJ Web of Conferences 167 (2018): 02004. http://dx.doi.org/10.1051/epjconf/201816702004.

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In the present work, we propose the production of a hybrid graphene based material suitable to be laser irradiated with the aim to produce quasi-monoenergetic proton beams using a femtosecond laser system. The unique lattice structure of the irradiated solid thin target can affect the inside electron propagation, their outgoing from the rear side of a thin foil, and subsequently the plasma ion acceleration. The produced targets, have been characterized in composition, roughness and structure and for completeness irradiated. The yield and energy of the ions emitted from the laser-generated plasma have been monitored and the emission of proton stream profile exhibited an acceleration of the order of several MeVs/charge state.
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Blanco, M., M. T. Flores-Arias, C. Ruiz, and M. Vranic. "Table-top laser-based proton acceleration in nanostructured targets." New Journal of Physics 19, no. 3 (March 1, 2017): 033004. http://dx.doi.org/10.1088/1367-2630/aa5f7e.

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Uesaka, Mitsuru, and Kazuyoshi Koyama. "Advanced Accelerators for Medical Applications." Reviews of Accelerator Science and Technology 09 (January 2016): 235–60. http://dx.doi.org/10.1142/s1793626816300115.

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We review advanced accelerators for medical applications with respect to the following key technologies: (i) higher RF electron linear accelerator (hereafter “linac”); (ii) optimization of alignment for the proton linac, cyclotron and synchrotron; (iii) superconducting magnet; (iv) laser technology. Advanced accelerators for medical applications are categorized into two groups. The first group consists of compact medical linacs with high RF, cyclotrons and synchrotrons downsized by optimization of alignment and superconducting magnets. The second group comprises laser-based acceleration systems aimed of medical applications in the future. Laser plasma electron/ion accelerating systems for cancer therapy and laser dielectric accelerating systems for radiation biology are mentioned. Since the second group has important potential for a compact system, the current status of the established energy and intensity and of the required stability are given.
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Dissertations / Theses on the topic "Laser Based Proton acceleration"

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JAFER, RASHIDA. "Laser plasma protons and applications in cancer therapy and proton radiography." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/7457.

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Recent developments in high power, ultrashort pulse laser systems enable laser intensities beyond 10^21 W/cm^2 to be achieved. When focused onto thin foil targets, plasmas with extremely high electrostatic fields (>10^12V/m) are produced, resulting in the acceleration of protons/ions to very high energies (~60MeV). During my PhD, I have worked on experimental investigations into proton acceleration driven by high power laser pulses. Key to successful deployment of laser proton sources one one side is getting higher proton energies through to achieve the ultimate goal of realising table top machines for the treatment of cancer and on the other side, optimising the beam quality, an objective that was of the main motivation for my PhD work. My two main achievements were: 1. The production of bright, ultrashort and radially smooth pulsed proton beams using laser heating of pre-plasmas formed with long (nanosecond) pulses with ultrahigh intensity picosecond pulses. 2. Use of these beams to study the ultrafast dynamics of target implosion under intense laser irradiation The experiments on proton acceleration with the specific goal of controlling the proton beam quality by optical tool design, were performed at RAL. This scheme involves the use of multiple laser pulses to enhance and control the properties of beams of protons accelerated in ultra-intense laser irradiation of planar foil targets. Specifically, one laser pulse produces and controls the expansion of the target to enhance the energy coupling to the main (delayed) laser and/or drives shock deformation of the target to change the direction of the proton beam. The preplasma formed by this low intensity nanosecond beam (~ 0.5-5x10^12 W/cm^2) was used to enhance the laser absorption of the main (delayed) CPA (Chirped pulse amplified). The main CPA picosecond beam was used at high intensity (~ 4x 10^20 W /cm^2) to produce intense proton beams from the hydrogen rich target. The optimum intensity of the nanosecond beam was investigated and optimised to yield a very smooth and circular distribution of the proton beam achieved using a second long pulse laser at 5x10^12w/cm^2. The second achievement concerns an experiment also performed at RAL on proton radiography. As the laser based protons are characterised by small source size, high degree of collimation and short duration, they can be used in point projection backlighting schemes to perform radiography. In particular, I used this idea to perform radiography of a cylindrical target ~ 200µm long imploding under irradiation by long laser pulses of nanosecond duration. This allows measuring the degree of compression of the target as well as the stagnation time in the dynamic regime. The experiment took place in the framework of the HiPER project (the European High Power laser Energy Research facility Project). The final goal of the experiment was to study the transport of fast electron in cylindrical compressed target a subject of interest for fast ignition. In parallel to proton radiography x-ray radiography was used to compare the results. One of the specific advantages of using laser generated protons is that their spectrum is continuous upto a high energy cutoff. Because of their different time of flights protons proved to be very effective in revealing the implosion history of the target. In principle, the obtained implosion can be followed in time with a single shot sensitivity. Instead x-ray radiograph gives one image per laser shot at one fixed time and one has to make several shots in order to reveal the complete history of implosion. Another advantage of using proton radiography is a simpler experimental setup keeping imploding cylinder between proton target and proton detector on the same axis. Simulations of formation of proton images were made with the Monte Carlo MCNPX Code using the density profiles of the imploded cylinder obtained with the 2D-hydro CHIC code. A detailed study of Multiple Coulomb Scattering and Stopping Powers of the protons in low energy regimes for cold and warm matter was done to interpret the experimental results. Finally, I’m taking part in the analysis of experimental results obtained at the University of Rochester (USA) on the Omega-EP laser, and concerning magnetic field effect on the proton radiographs of a wired cone.
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Sinigardi, Stefano <1985&gt. "Laser driven proton acceleration and beam shaping." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6230/1/sinigardi_stefano_tesi.pdf.

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In the race to obtain protons with higher energies, using more compact systems at the same time, laser-driven plasma accelerators are becoming an interesting possibility. But for now, only beams with extremely broad energy spectra and high divergence have been produced. The driving line of this PhD thesis was the study and design of a compact system to extract a high quality beam out of the initial bunch of protons produced by the interaction of a laser pulse with a thin solid target, using experimentally reliable technologies in order to be able to test such a system as soon as possible. In this thesis, different transport lines are analyzed. The first is based on a high field pulsed solenoid, some collimators and, for perfect filtering and post-acceleration, a high field high frequency compact linear accelerator, originally designed to accelerate a 30 MeV beam extracted from a cyclotron. The second one is based on a quadruplet of permanent magnetic quadrupoles: thanks to its greater simplicity and reliability, it has great interest for experiments, but the effectiveness is lower than the one based on the solenoid; in fact, the final beam intensity drops by an order of magnitude. An additional sensible decrease in intensity is verified in the third case, where the energy selection is achieved using a chicane, because of its very low efficiency for off-axis protons. The proposed schemes have all been analyzed with 3D simulations and all the significant results are presented. Future experimental work based on the outcome of this thesis can be planned and is being discussed now.
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Sinigardi, Stefano <1985&gt. "Laser driven proton acceleration and beam shaping." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6230/.

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In the race to obtain protons with higher energies, using more compact systems at the same time, laser-driven plasma accelerators are becoming an interesting possibility. But for now, only beams with extremely broad energy spectra and high divergence have been produced. The driving line of this PhD thesis was the study and design of a compact system to extract a high quality beam out of the initial bunch of protons produced by the interaction of a laser pulse with a thin solid target, using experimentally reliable technologies in order to be able to test such a system as soon as possible. In this thesis, different transport lines are analyzed. The first is based on a high field pulsed solenoid, some collimators and, for perfect filtering and post-acceleration, a high field high frequency compact linear accelerator, originally designed to accelerate a 30 MeV beam extracted from a cyclotron. The second one is based on a quadruplet of permanent magnetic quadrupoles: thanks to its greater simplicity and reliability, it has great interest for experiments, but the effectiveness is lower than the one based on the solenoid; in fact, the final beam intensity drops by an order of magnitude. An additional sensible decrease in intensity is verified in the third case, where the energy selection is achieved using a chicane, because of its very low efficiency for off-axis protons. The proposed schemes have all been analyzed with 3D simulations and all the significant results are presented. Future experimental work based on the outcome of this thesis can be planned and is being discussed now.
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Morita, Toshimasa. "Studies on the Proton Acceleration by a Laser Pulse." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120913.

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Abuazoum, Salima. "Experimental study of laser-driven electron and proton acceleration." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18698.

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Zeil, Karl. "Efficient laser-driven proton acceleration in the ultra-short pulse regime." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-117484.

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The work described in this thesis is concerned with the experimental investigation of the acceleration of high energy proton pulses generated by relativistic laser-plasma interaction and their application. Using the high intensity 150 TW Ti:sapphire based ultra-short pulse laser Draco, a laser-driven proton source was set up and characterized. Conducting experiments on the basis of the established target normal sheath acceleration (TNSA) process, proton energies of up to 20 MeV were obtained. The reliable performance of the proton source was demonstrated in the first direct and dose controlled comparison of the radiobiological effectiveness of intense proton pulses with that of conventionally generated continuous proton beams for the irradiation of in vitro tumour cells. As potential application radiation therapy calls for proton energies exceeding 200 MeV. Therefore the scaling of the maximum proton energy with laser power was investigated and observed to be near-linear for the case of ultra-short laser pulses. This result is attributed to the efficient predominantly quasi-static acceleration in the short acceleration period close to the target rear surface. This assumption is furthermore confirmed by the observation of prominent non-target-normal emission of energetic protons reflecting an asymmetry in the field distribution of promptly accelerated electrons generated by using oblique laser incidence or angularly chirped laser pulses. Supported by numerical simulations, this novel diagnostic reveals the relevance of the initial prethermal phase of the acceleration process preceding the thermal plasma sheath expansion of TNSA. During the plasma expansion phase, the efficiency of the proton acceleration can be improved using so called reduced mass targets (RMT). By confining the lateral target size which avoids the dilution of the expanding sheath and thus increases the strength of the accelerating sheath fields a significant increase of the proton energy and the proton yield was observed.
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Kluge, Thomas. "Enhanced Laser Ion Acceleration from Solids." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-102681.

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This thesis presents results on the theoretical description of ion acceleration using ultra-short ultra-intense laser pulses. It consists of two parts. One deals with the very general and underlying description and theoretic modeling of the laser interaction with the plasma, the other part presents three approaches of optimizing the ion acceleration by target geometry improvements using the results of the first part. In the first part, a novel approach of modeling the electron average energy of an over-critical plasma that is irradiated by a few tens of femtoseconds laser pulse with relativistic intensity is introduced. The first step is the derivation of a general expression of the distribution of accelerated electrons in the laboratory time frame. As is shown, the distribution is homogeneous in the proper time of the accelerated electrons, provided they are at rest and distributed uniformly initially. The average hot electron energy can then be derived in a second step from a weighted average of the single electron energy evolution. This result is applied exemplary for the two important cases of infinite laser contrast and square laser temporal profile, and the case of an experimentally more realistic case of a laser pulse with a temporal profile sufficient to produce a preplasma profile with a scale length of a few hundred nanometers prior to the laser pulse peak. The thus derived electron temperatures are in excellent agreement with recent measurements and simulations, and in particular provide an analytic explanation for the reduced temperatures seen both in experiments and simulations compared to the widely used ponderomotive energy scaling. The implications of this new electron temperature scaling on the ion acceleration, i.e. the maximum proton energy, are then briefly studied in the frame of an isothermal 1D expansion model. Based on this model, two distinct regions of laser pulse duration are identified with respect to the maximum energy scaling. For short laser pulses, compared to a reference time, the maximum ion energy is found to scale linearly with the laser intensity for a simple flat foil, and the most important other parameter is the laser absorption efficiency. In particular the electron temperature is of minor importance. For long laser pulse durations the maximum ion energy scales only proportional to the square root of the laser peak intensity and the electron temperature has a large impact. Consequently, improvements of the ion acceleration beyond the simple flat foil target maximum energies should focus on the increase of the laser absorption in the first case and the increase of the hot electron temperature in the latter case. In the second part, exemplary geometric designs are studied by means of simulations and analytic discussions with respect to their capability for an improvement of the laser absorption efficiency and temperature increase. First, a stack of several foils spaced by a few hundred nanometers is proposed and it is shown that the laser energy absorption for short pulses and therefore the maximum proton energy can be significantly increased. Secondly, mass limited targets, i.e. thin foils with a finite lateral extension, are studied with respect to the increase of the hot electron temperature. An analytical model is provided predicting this temperature based on the lateral foil width. Finally, the important case of bent foils with attached flat top is analyzed. This target geometry resembles hollow cone targets with flat top attached to the tip, as were used in a recent experiment producing world record proton energies. The presented analysis explains the observed increase in proton energy with a new electron acceleration mechanism, the direct acceleration of surface confined electrons by the laser light. This mechanism occurs when the laser is aligned tangentially to the curved cone wall and the laser phase co-moves with the energetic electrons. The resulting electron average energy can exceed the energies from normal or oblique laser incidence by several times. Proton energies are therefore also greatly increased and show a theoretical scaling proportional to the laser intensity, even for long laser pulses.
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Flacco, A. "Experimental Study of Proton Acceleration with Ultra-High Intensity, High Contrast Laser Beam." Phd thesis, Ecole Polytechnique X, 2008. http://pastel.archives-ouvertes.fr/pastel-00005616.

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La production de faisceaux énergétiques d'ions/protons avec des impulsions laser à intensités relativistes (I>10^{18}W/cm^2) a reçu, au cours des dernières années, un intérêt croissant parmi les scientifiques travaillant dans les domaines de l'optique, de la physique des plasmas et des accélérateurs. Une fraction des électrons est chauffée à haute température lors de l'interaction entre une impulsion laser femtoseconde et un plasma surdense. Les ions et les protons sont extraits et accélérés par la séparation de charge qui est produite pendant l'expansion du plasma. Les résultats présentés dans ce manuscrit décrivent la réalisation d'expériences d'accélération d'ions avec un système laser à haute puissance et à haut contraste (XPW). Deux expériences préparatoires sont réalisées, afin d'étudier l'interaction entre le piédestal d'une impulsion laser et une cible. L'expansion d'un plasma créé par laser à intensité moyenne est mesurée par interférométrie; l'évolution de la longueur de son gradient de densité est déduite par les cartes de densité électronique, mesurées à différents instants. La variation de la réflectivité absolue d'une cible mince d'aluminium est mise en corrélation avec la température électronique afin de contrôler le débouché du choc produit par le laser. La corrélation entre les deux expériences est finalement utilisée pour définir le conditions optimales pour l'accélération des protons. Des expériences d'accélération de protons avec un laser à haut contraste, la construction et la validation d'un spectromètre (Galette a Micro-canaux et Parabole Thomson), ainsi que des autres détails sur le montage sont présentés. Les résultats ainsi obtenus montrent que l'amélioration du contraste permet d'utiliser des cibles plus minces et de produire des conditions d'interaction plus stables et contrôlables. Des faisceaux des protons ayant énergie cinétique supérieure à 4MeV sont produits, avec une stabilité tir à tir meilleure de 4% rms. L'accélération des protons avec deux impulsions laser confirme que l'absorption d'énergie laser est augmentée dans le cas des cibles pre-chauffées par une impulsion laser avec les bons paramètres.
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Flacco, Alessandro. "Experimental study of proton acceleration with ultra-high intensity, high contrast laser beam." École polytechnique, 2010. http://www.theses.fr/2008EPXX0071.

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La production de faisceaux énergétiques d'ions/protons avec des impulsions laser à intensités relativistes (I>10^{18}W/cm^2) a reçu, au cours des dernières années, un intérêt croissant parmi les scientifiques travaillant dans les domaines de l'optique, de la physique des plasmas et des accélérateurs. Une fraction des électrons est chauffée à haute température lors de l'interaction entre une impulsion laser femtoseconde et un plasma surdense. Les ions et les protons sont extraits et accélérés par la séparation de charge qui est produite pendant l'expansion du plasma. Les résultats présentés dans ce manuscrit décrivent la réalisation d'expériences d'accélération d'ions avec un système laser à haute puissance et à haut contraste (XPW). Deux expériences préparatoires sont réalisées, afin d'étudier l'interaction entre le piédestal d'une impulsion laser et une cible. L'expansion d'un plasma créé par laser à intensité moyenne est mesurée par interférométrie; l'évolution de la longueur de son gradient de densité est déduite par les cartes de densité électronique, mesurées à différents instants. La variation de la réflectivité absolue d'une cible mince d'aluminium est mise en corrélation avec la température électronique afin de contrôler le débouché du choc produit par le laser. La corrélation entre les deux expériences est finalement utilisée pour définir le conditions optimales pour l'accélération des protons. Des expériences d'accélération de protons avec un laser à haut contraste, la construction et la validation d'un spectromètre (Galette a Micro-canaux et Parabole Thomson), ainsi que des autres détails sur le montage sont présentés. Les résultats ainsi obtenus montrent que l'amélioration du contraste permet d'utiliser des cibles plus minces et de produire des conditions d'interaction plus stables et contrôlables. Des faisceaux des protons ayant énergie cinétique supérieure à 4MeV sont produits, avec une stabilité tir à tir meilleure de 4% rms. L'accélération des protons avec deux impulsions laser confirme que l'absorption d'énergie laser est augmentée dans le cas des cibles pre-chauffées par une impulsion laser avec les bons paramètres
The production of energetic proton/ion beams with laser pulses at relativistic intensities (I>10^{18}W/cm^2) has received, in the past few years, increasing interest from the scientific community in plasma, optics and accelerator physics. A fraction of electrons is heated to high temperature during the ultrafast interaction between a femtosecond laser pulse and an overdense plasma. Ions and protons are extracted and accelerated by the charge separation set up during the expansion of the plasma. The results presented in this manuscript report on the realization of ion acceleration experiments using a high contrast (XPW) multi-terawatt laser system. Two preparatory experiments are set up, aiming to study the pedestal of a laser pulse interacting with the target. The expansion of a plasma created by a laser at moderate intensity is measured by interferometry; the evolution of the density gradient length is deduced from the electron density maps at different moments. The variation of the absolute reflectivity of a thin aluminium foil is correlated to the electron temperature and is used to monitor the arrival time of the laser produced shock. The crossing between the two experiments is finally used to define the optimum condition for proton acceleration. Proton acceleration experiments with high contrast laser are reported, including the construction and the validation of a real-time, single shot ion spectrometer (Micro-channel Plate and Thomson Parabola), and other details of the realised setup. The obtained results show that the increased contrast enables the use of thinner targets and the production of more stable and controllable interaction conditions. Proton beams with kinetic energy higher than 4 MeV are produced, with a shot-to-shot stability better than 4% rms. Proton acceleration experiment with two laser beams confirms that the laser energy absorption is enhanced when the target is pre-heated by a laser pulse with proper parameters
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Böker, Jürgen [Verfasser], Oswald [Akademischer Betreuer] Willi, and Carsten [Akademischer Betreuer] Müller. "Laser-Driven Proton Acceleration with Two Ultrashort Laser Pulses / Jürgen Böker. Gutachter: Carsten Müller. Betreuer: Oswald Willi." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2015. http://d-nb.info/1072500612/34.

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Books on the topic "Laser Based Proton acceleration"

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Kato, Takao. Improvement of the laser-based alignment system for the J-PARC proton linac. Tsukuba-shi, Ibaraki-ken, Japan: High Energy Accelerator Research Organization, 2005.

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Sokollik, Thomas. Investigations of Field Dynamics in Laser Plasmas with Proton Imaging. Springer Berlin / Heidelberg, 2013.

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Investigations Of Field Dynamics In Laser Plasmas With Proton Imaging. Springer, 2011.

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Sokollik, Thomas. Investigations of Field Dynamics in Laser Plasmas with Proton Imaging. Springer, 2011.

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Sokollik, Thomas. Investigations of Field Dynamics in Laser Plasmas with Proton Imaging. Springer, 2011.

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Book chapters on the topic "Laser Based Proton acceleration"

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Seryi, Andrei A., and Elena I. Seraia. "Proton and Ion Laser Plasma Acceleration." In Unifying Physics of Accelerators, Lasers and Plasma, 197–216. 2nd ed. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003326076-9.

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Sokollik, Thomas. "Ion Acceleration." In Investigations of Field Dynamics in Laser Plasmas with Proton Imaging, 25–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15040-1_4.

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Otake, Yoshie. "A Compact Proton Linac Neutron Source at RIKEN." In Applications of Laser-Driven Particle Acceleration, 291–314. Boca Raton, FL : CRC Press, Taylor & Francis Group, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9780429445101-21.

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Mima, Kunioki, Kazuhisa Fujita, Yoshiaki Kato, Shunsukei Inoue, and Shuji Sakabe. "Nuclear Reaction Analysis of Li-Ion Battery Electrodes by Laser-Accelerated Proton Beams." In Applications of Laser-Driven Particle Acceleration, 261–76. Boca Raton, FL : CRC Press, Taylor & Francis Group, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9780429445101-19.

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Li, Chen, Cunli Wu, and Cetin Cetinkaya. "Transient laser-based surface acceleration simulations for particle removal." In Particles on Surfaces: Detection, Adhesion and Removal, Volume 7, 309–23. London: CRC Press, 2023. http://dx.doi.org/10.1201/9780429070716-21.

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Ji, Liangliang. "Extreme Light Field Generation I: Quasi-Single-Cycle Relativistic Laser Pulse." In Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers, 57–64. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54007-3_4.

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Ji, Liangliang. "Extreme Light Field Generation II: Short-Wavelength Single-Cycle Ultra-Intense Laser Pulse." In Ion acceleration and extreme light field generation based on ultra-short and ultra–intense lasers, 65–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54007-3_5.

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Tajima, T. "Technology of Cancer Particle Radiation Therapy Based on Ultrafast Intense Laser Generated Proton- and Ion Beams." In IFMBE Proceedings, 190–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03895-2_55.

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"Proton And Ion Laser Plasma Acceleration." In Unifying Physics of Accelerators, Lasers and Plasma, 195–214. CRC Press, 2015. http://dx.doi.org/10.1201/b18696-17.

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Resta López, Javier. "Future Particle Accelerators." In Advances in Fusion Energy Research - Theory, Models, Algorithms, and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106340.

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Abstract:
Particle accelerators have enabled forefront research in high energy physics and other research areas for more than half a century. Accelerators have directly contributed to 26 Nobel Prizes in Physics since 1939 as well as another 20 Nobel Prizes in Chemistry, Medicine and Physics with X-rays. Although high energy physics has been the main driving force for the development of the particle accelerators, accelerator facilities have continually been expanding applications in many areas of research and technology. For instance, active areas of accelerator applications include radiotherapy to treat cancer, production of short-lived medical isotopes, synchrotron light sources, free-electron lasers, beam lithography for microcircuits, thin-film technology and radiation processing of food. Currently, the largest and most powerful accelerator is the Large Hadron Collider (LHC) at CERN, which accelerates protons to multi-TeV energies in a 27 km high-vacuum ring. To go beyond the maximum capabilities of the LHC, the next generation of circular and linear particle colliders under consideration, based on radiofrequency acceleration, will require multi-billion investment, kilometric infrastructure and massive power consumption. These factors pose serious challenges in an increasingly resource-limited world. Therefore, it is important to look for alternative and sustainable acceleration techniques. This chapter pays special attention to novel accelerator techniques to overcome present acceleration limitations towards more compact and cost-effective long-term future accelerators.
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Conference papers on the topic "Laser Based Proton acceleration"

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Pomerantz, Ishay, Itay Kishon, Annika Kleinschmidt, Victor A. Schanz, Alexandra Tebartz, Juan Carlos Fernández, Donald C. Gautier, et al. "Laser-based fast-neutron spectroscopy (Conference Presentation)." In Laser Acceleration of Electrons, Protons, and Ions, edited by Eric Esarey, Carl B. Schroeder, and Florian J. Grüner. SPIE, 2017. http://dx.doi.org/10.1117/12.2264955.

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Chen, Yu-hsin, David Alessi, Derrek Drachenberg, Bradley Pollock, Felicie Albert, Joseph Ralph, and Constantin Haefner. "Increasing Laser Contrast by Relativistic Self-Guiding and its Application to Laser-Based Proton Acceleration." In CLEO: QELS_Fundamental Science. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/cleo_qels.2014.fm1b.4.

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Fourmaux, S., S. Buffechoux, S. Gnedyuk, B. Albertazzi, D. Capelli, L. Lecherbourg, A. Lévy, et al. "Laser-based proton acceleration on ultrathin foil with a 100-TW-class high intensity laser system." In Photonics North 2011, edited by Raman Kashyap, Michel Têtu, and Rafael N. Kleiman. SPIE, 2011. http://dx.doi.org/10.1117/12.905822.

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Fourmaux, S., S. Buffechoux, B. Albertazzi, S. Gnedyuk, L. Lecherbourg, S. Payeur, P. Audebert, et al. "Laser-based proton acceleration experiments at the ALLS facility using a 200 TW high intensity laser system." In Photonics North 2010, edited by Henry P. Schriemer and Rafael N. Kleiman. SPIE, 2010. http://dx.doi.org/10.1117/12.873090.

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LaBerge, Maxwell, Omid Zarini, Alex H. Lumpkin, Alexander Debus, Andrea Hannasch, Jurjen Couperus Cabadağ, Brant Bowers, et al. "Coherent-transition-radiation-based reconstruction of laser plasma accelerated electron bunches." In Laser Acceleration of Electrons, Protons, and Ions VI, edited by Stepan S. Bulanov, Carl B. Schroeder, and Jörg Schreiber. SPIE, 2021. http://dx.doi.org/10.1117/12.2592306.

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Seimetz, M., P. Bellido, F. Sanchez, R. Lera, A. Ruiz-de la Cruz, S. Torres-Peiro, L. Roso, et al. "Detailed requirements for a laser-based proton/ion accelerator for radioisotope production." In 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2015. http://dx.doi.org/10.1109/nssmic.2015.7582187.

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Pogorelsky, I. V., I. V. Pavlishin, V. Yakimenko, P. L. Shkolnikov, and A. Pukhov. "High-Brightness Picosecond Proton Beam Source Based on BNL TW CO2 Laser: Proof-of-Principle Experiments." In ADVANCED ACCELERATOR CONCEPTS: 12th Advanced Accelerator Concepts Workshop. AIP, 2006. http://dx.doi.org/10.1063/1.2409163.

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Bellido, P., M. Seimetz, R. Lera, A. Ruiz de la Cruz, F. Sanchez, L. Roso, and J. M. Benlloch. "Radiological protection study of a radioisotope production scenario of a laser-based proton accelerator." In 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD). IEEE, 2016. http://dx.doi.org/10.1109/nssmic.2016.8069715.

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Vallières, Simon, Antonia Morabito, Simona Veltri, Massimiliano Scisciò, Marianna Barberio, and Patrizio Antici. "Laser-driven proton acceleration with nanostructured targets." In SPIE Optics + Optoelectronics, edited by Eric Esarey, Carl B. Schroeder, and Florian J. Grüner. SPIE, 2017. http://dx.doi.org/10.1117/12.2265913.

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Yan, Xueqing, Jungao Zhu, Qing Liao, Yixing Geng, Jiaer Chen, Chengcai Li, Dongyu Li, et al. "From laser acceleration to a laser proton accelerator (Conference Presentation)." In Laser Acceleration of Electrons, Protons, and Ions, edited by Eric Esarey, Carl B. Schroeder, and Jörg Schreiber. SPIE, 2019. http://dx.doi.org/10.1117/12.2521023.

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Reports on the topic "Laser Based Proton acceleration"

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Chen, Yu-hsin, David A. Alessi, Derek Drachenberg, Bradley B. Pollock, Felicie Albert, Joseph E. Ralph, and L. Constantin Haefner. Proton acceleration by relativistic self-guided laser pulses. Office of Scientific and Technical Information (OSTI), October 2014. http://dx.doi.org/10.2172/1178401.

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Esarey, Eric, and Carl B. Schroeder. Physics of Laser-driven plasma-based acceleration. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/843065.

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Liu, Chuan S., and Xi Shao. Physics and Novel Schemes of Laser Radiation Pressure Acceleration for Quasi-monoenergetic Proton Generation. Office of Scientific and Technical Information (OSTI), June 2016. http://dx.doi.org/10.2172/1256958.

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Shkolnikov, Peter. Proton and Ion Acceleration by BNL Terewatt Picosecond CO2 Laser. New Horizons. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1166941.

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Katsouleas, Thomas C., and Aakash A. Sahai. DOE-HEP Final Report for 2013-2016: Studies of plasma wakefields for high repetition-rate plasma collider, and Theoretical study of laser-plasma proton and ion acceleration. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1291676.

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