Academic literature on the topic '3-Gamma imaging'
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Journal articles on the topic "3-Gamma imaging"
Haefner, Andrew, Ross Barnowski, Paul Luke, Mark Amman, and Kai Vetter. "Handheld real-time volumetric 3-D gamma-ray imaging." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 857 (June 2017): 42–49. http://dx.doi.org/10.1016/j.nima.2016.11.046.
Full textVetter, Kai, Ross Barnowksi, Andrew Haefner, Tenzing H. Y. Joshi, Ryan Pavlovsky, and Brian J. Quiter. "Gamma-Ray imaging for nuclear security and safety: Towards 3-D gamma-ray vision." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 878 (January 2018): 159–68. http://dx.doi.org/10.1016/j.nima.2017.08.040.
Full textHu, Yifan, Zhenlei Lyu, Peng Fan, Tianpeng Xu, Shi Wang, Yaqiang Liu, and Tianyu Ma. "A Wide Energy Range and 4π-View Gamma Camera with Interspaced Position-Sensitive Scintillator Array and Embedded Heavy Metal Bars." Sensors 23, no. 2 (January 13, 2023): 953. http://dx.doi.org/10.3390/s23020953.
Full textChmeissani, Mokhtar, Machiel Kolstein, Gerard Ariño-Estrada, José Gabriel Macias-Montero, Carles Puigdengoles, and Jorge García. "Tracking a moving point source using triple gamma imaging." Journal of Instrumentation 19, no. 01 (January 1, 2024): P01001. http://dx.doi.org/10.1088/1748-0221/19/01/p01001.
Full textZhang, Jipeng, Xiong Xiao, Ye Chen, Bin Zhang, Xinhua Ma, Xianyun Ai, and Jinglun Li. "A Portable Three-Layer Compton Camera for Wide-Energy-Range Gamma-ray Imaging: Design, Simulation and Preliminary Testing." Sensors 23, no. 21 (November 3, 2023): 8951. http://dx.doi.org/10.3390/s23218951.
Full textLi, Hui, and Wenbiao Chen. "Unintended findings: Therapeutic effects of hormones or gamma globulins on Lentiform Fork sign in 3 diabetic uremic patients: Case report/case series." Medicine 102, no. 34 (August 25, 2023): e34819. http://dx.doi.org/10.1097/md.0000000000034819.
Full textWonho Lee and D. K. Wehe. "3-D isotropic imaging of environmental sources using a compact gamma camera." IEEE Transactions on Nuclear Science 51, no. 5 (October 2004): 2267–72. http://dx.doi.org/10.1109/tns.2004.834714.
Full textCervantes, Hernán J., Christianne C. Cavinato, Letícia L. Campos, and Said R. Rabbani. "Gamma Knife® 3-D Dose Distribution Mapping by Magnetic Resonance Imaging." Applied Magnetic Resonance 39, no. 4 (October 2, 2010): 357–64. http://dx.doi.org/10.1007/s00723-010-0166-4.
Full textBower, Geoffrey C. "Millimeter VLBI Observations of the Gamma-Ray Blazar NRAO 530." International Astronomical Union Colloquium 164 (1998): 41–42. http://dx.doi.org/10.1017/s0252921100044432.
Full textWatanabe, Yoichi, Chung K. Lee, and Bruce J. Gerbi. "Geometrical accuracy of a 3-tesla magnetic resonance imaging unit in Gamma Knife surgery." Journal of Neurosurgery 105, Supplement (December 2006): 190–93. http://dx.doi.org/10.3171/sup.2006.105.7.190.
Full textDissertations / Theses on the topic "3-Gamma imaging"
Paradiso, Vincenzo. "Development of a portable gamma camera for accurate 3-D localization of radioactive hotspots." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC209.
Full textA coded aperture gamma camera for retrieving the three-dimensional (3-D) position of radioactive sources is presented. This is of considerable interest for a wide number of applications, ranging from the reconstruction of the 3-D shape of radioactive objects to augmented reality systems. Current portable γ-cameras only provide the relative angular position of the hotspots within their field of view. That is, they do not provide any metric information concerning the located sources. In this study, we propose two approaches to estimate the distance of the surrounding hotspots, and to autonomously determine if they are occluded by an object. The first consists in combining and accurately calibrating the gamma camera with a structured-light depth sensor. The second approach allows the estimation of the source-detector distance by means of stereo gamma imaging. To geometrically align the images obtained by the gamma, depth, and optical cameras used, a versatile calibration procedure has been designed and carried out. Such procedure uses a calibration phantom intentionally easy to build and inexpensive, allowing the procedure to be performed with only one radioactive point source. Experimental results showed that our calibration procedure yields to sub-pixel accuracy both in the re-projection error and the overlay of radiation and optical images. A quantitative analysis concerning the accuracy and resolution of the retrieved source-detector distance is also provided, along with an insight into the respective most influential factors. Moreover, the results obtained validated the choice of the geometry of the pinhole model for a coded aperture gamma camera
Watanabe, Shio. "Stereoscopic observations of TeV gamma-rays from the supernova remnant RX J0852.0-4622 with the CANGAROO-3 imaging air Cerenkov telescopes." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/136732.
Full textCai, Dingbang. "Contributions to instrumental developments for the XEMIS2 camera, on-board ionization and scintillation measurements." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2024. http://www.theses.fr/2024IMTA0408.
Full textThe work described in this thesis focuses on the evolution of nuclear medical imaging, from fundamental imaging techniques to current innovations, with a particular focus on the XEMIS2 camera. This liquid xenon Compton camera is designed for 3-gamma imaging of small, low-activity animals. The main objective of XEMIS2 is to localize in three dimensions a radiopharmaceutical labeled with a specific radionuclide, such as Scandium-44, while reducing the administered activity without compromising image quality. The thesis then focuses on the development and performance of the XEMIS2 camera. It covers the operational principles of the liquid xenon time projection chambers (LXeTPCs), the use of the Frisch grid to improve the performance of the ionization chambers, and the complex process of calibrating the scintillation signals in XEMIS2 using the Time over Threshold (TOT) method. Efforts to optimize calibration results are also discussed. By summarizing these technological and methodological advances, the thesis provides a historical perspective and a prospective analysis of the potential impact of these technologies on medical diagnostics and research
Palmer, David M. "Gamma-ray imaging observations of Supernova 1987A." Thesis, 1992. https://thesis.library.caltech.edu/6645/3/Palmer_dm_1992.pdf.
Full textFinger, Mark Harold. "The Imaging of Extra-Galactic Low-Energy Gamma-Ray Sources: Prospects, Techniques, and Instrumentation." Thesis, 1988. https://thesis.library.caltech.edu/6690/3/Finger_mh_1988.pdf.
Full textThe handful of extra-galactic low-energy gamma-ray sources so far observed are all active galaxies, which are expected to dominate future detections. The nature of these compact, highly luminous sources is at present not clear; however, they may be powered by massive black holes. Many of these sources may produce their peak luminosity in the 0.5 to 5.0 MeV energy band, and observation in this energy range will be important in revealing the nature of their central power-house.
Improved understanding of the nature of active galaxies will require detailed observations of 10-20 sources, while understanding of their gamma-ray luminosity function and its evolution will require the detection of ~100 sources. From x-ray number counts and the presently available information about active galaxy spectra, we estimate the hard x-ray and low-energy gamma-ray number source-flux relation N(>S) for active galaxies. Instruments capable of detecting ~100 active galaxies at low-energy gamma-ray energies are achievable. These instruments will, however, be observing sources with fluxes some 10⁻³ - 10⁻⁴ times lower than their instrumental background level, and will require careful control of systematic errors.
The angular resolution of an instrument, as well as its sensitivity, can limit the number of sources it can observe. We present an investigation of the angular resolution requirements for future low-energy gamma-ray instruments. We find that the strictest requirements arise not from the need to resolve detectable sources, but from the need to control the level of direction-to-direction fluctuations in the diffuse background level. We conclude that gamma-ray instruments capable of detecting 100 active galaxies must have sub-degree angular resolution.
We propose use of the coded aperture imaging technique as a method of achieving accurate control of systematic errors and fine angular resolution without unduly increasing the time needed to conduct full-sky surveys. This is a technique that employs a partially opaque mask to spatially modulate the source flux incident upon a position-sensitive photon detector. We present an analysis of coded aperture imaging for instruments that employ masks based on hexagonal uniformly redundant arrays. Rotation of such a mask allows complete, position-by-position background subtraction on short time-scales, and removes the periodic ambiguity inherent in uniformly redundant arrays.
An instrument, the Gamma-ray Imaging Payload, has been built that employs these imaging techniques. The primary detector of the instrument is a 41 cm diameter by 5 cm thick NaI(Tl) Anger camera. We describe the design and testing of the instrument in detail. Preliminary results from a balloon flight of the instrument are shown, demonstrating its imaging performance.
Books on the topic "3-Gamma imaging"
Du, Junwei, and Krzysztof Iniewski, eds. Gamma Ray Imaging. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2.
Full textBook chapters on the topic "3-Gamma imaging"
Montagnani, Giovanni Ludovico. "Development of a 3” LaBr3 SiPM-Based Detection Module for High Resolution Gamma Ray Spectroscopy and Imaging." In Special Topics in Information Technology, 77–82. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62476-7_7.
Full textManickavasagan, A., and N. Yasasvy. "Gamma-Ray Imaging." In Imaging with Electromagnetic Spectrum, 17–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54888-8_2.
Full textLi, Yunyun, and Yuntao Wu. "Metal-Loaded Plastic Scintillators Toward Gamma Spectroscopy Applications." In Gamma Ray Imaging, 231–43. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_11.
Full textLiu, Xiao, Hui Liu, and Yaqiang Liu. "Cascade Gamma Emission Coincidence Tomography." In Gamma Ray Imaging, 43–64. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_3.
Full textJohns, Paul M. "Materials for Gamma Radiation Sensors." In Gamma Ray Imaging, 181–207. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_9.
Full textLucchetta, Giulio. "Concepts for Solid State Detectors in Space-Based Gamma-Ray Astrophysics." In Gamma Ray Imaging, 103–35. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_6.
Full textTandel, S. K. "Nuclear Structure Studies Using Gamma-Ray Spectroscopy and Digital Signal Processing." In Gamma Ray Imaging, 1–19. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_1.
Full textTian, Zifeng, and Zhaoheng Xie. "Toward a New Frontier in PET Image Reconstruction: A Paradigm Shift to the Learning-Based Methods." In Gamma Ray Imaging, 21–42. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_2.
Full textKitayama, Yoshiharu. "Shield-Free Directional Gamma-Ray Detector Using Small-Angle Compton Scattering." In Gamma Ray Imaging, 165–79. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_8.
Full textKonstantinou, Georgios. "Metascintillators for Ultra-Fast Gamma Detectors." In Gamma Ray Imaging, 209–30. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30666-2_10.
Full textConference papers on the topic "3-Gamma imaging"
Austin, Robert A. "Gamma ray detection with a 3 × 3 virtual Frisch grid array." In 2008 IEEE Nuclear Science Symposium and Medical Imaging conference (2008 NSS/MIC). IEEE, 2008. http://dx.doi.org/10.1109/nssmic.2008.4774538.
Full textThrall, C. L., C. G. Wahl, and Zhong He. "Directional isotope identification using 3-D semiconductor gamma-ray-imaging spectrometers." In 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009). IEEE, 2009. http://dx.doi.org/10.1109/nssmic.2009.5402026.
Full textYe, Qing, Peng Fan, Qingyang Wei, Yunhan Yu, Shi Wang, Yaqiang Liu, and Tianyu Ma. "Collimator-less 4π gamma imaging with 3-D position-sensitive detector." 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.2016.8069729.
Full textMarin, Stefano, M. Stephan Okar, Leah M. Clark, Isabel E. Hernandez, Shaun D. Clarke, and Sara A. Pozzi. "Neutron-Gamma Correlation Analysis Using the Fission Sphere (FS-3)." In 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2021. http://dx.doi.org/10.1109/nss/mic44867.2021.9875703.
Full textHe, Z., M. A. Robbins, K. Saheb, and M. Kanatzidis. "Pixelated CsPbBr3 Semiconductor Gamma Spectrometers." In 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD). IEEE, 2023. http://dx.doi.org/10.1109/nssmicrtsd49126.2023.10338534.
Full textDi Vita, Davide, Luca Buonanno, Fabio Canclini, Giacomo Ticchi, Marco Carminati, Franco Camera, and Carlo Fiorini. "High-DR High-Resolution Gamma-Ray Spectroscopy with 3" LaBr3 and SiPMs." In 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2021. http://dx.doi.org/10.1109/nss/mic44867.2021.9875849.
Full textKim, H., A. Kargar, L. Cirignano, J. F. Christian, V. Klepov, M. G. Kanatzidis, and M. R. Squillante. "Gamma-ray Spectra from a 3x3 CsPbBr3 Array." In 2022 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2022. http://dx.doi.org/10.1109/nss/mic44845.2022.10399233.
Full textShirwadkar, U., E. V. D. van Loef, R. Hawrami, S. Mukhopadhyay, J. Glodo, and K. S. Shah. "New promising scintillators for gamma-ray spectroscopy: Cs(Ba,Sr)(Br,I)3." In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154636.
Full textBoucher, Yvan A., Feng Zhang, Willy Kaye, and Zhong He. "Measurements of gamma rays above 3 MeV using 3D position-sensitive 20×20×15 mm3 CdZnTe detectors." In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154731.
Full textHe, Zhong. "Hand-Held Gamma-Ray Imaging Sensors Using Room-Temperature 3-Dimensional Position-Sensitive Semiconductor Spectrometers." In UNATTENDED RADIATION SENSOR SYSTEMS FOR REMOTE APPLICATIONS. AIP, 2002. http://dx.doi.org/10.1063/1.1513971.
Full textReports on the topic "3-Gamma imaging"
Brand, A. D., T. J. Aucott, and D. P. Diprete. Gamma-ray imaging assay of cells 3-5 of the east cell line in the 235-F plutonium fuel form facility. Office of Scientific and Technical Information (OSTI), April 2017. http://dx.doi.org/10.2172/1361663.
Full textGammaModeler TM 3-D gamma-ray imaging technology. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/774501.
Full textGamma Ray Imaging System (GRIS) GammaCam{trademark}. Final report, January 3, 1994--May 31, 1996. Office of Scientific and Technical Information (OSTI), December 1996. http://dx.doi.org/10.2172/677195.
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