Relevant bibliographies by topics / Radiopurity

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Radiopurity'

Author: Grafiati
Published: 9 March 2023

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Journal articles on the topic "Radiopurity"

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Belli, P., R. Bernabei, F. Cappella, R. Cerulli, F. A. Danevich, A. M. Dubovik, S. d'Angelo, et al. "Radiopurity of ZnWO4Crystal Scintillators." Acta Physica Polonica A 117, no. 1 (January 2010): 139–42. http://dx.doi.org/10.12693/aphyspola.117.139.

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Barinova, O. P., F. Cappella, R. Cerulli, F. A. Danevich, S. V. Kirsanova, V. V. Kobychev, M. Laubenstein, S. S. Nagorny, F. Nozzoli, and V. I. Tretyak. "Intrinsic radiopurity of a crystal." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 607, no. 3 (August 2009): 573–75. http://dx.doi.org/10.1016/j.nima.2009.06.003.

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Cebrián, S., T. Dafni, E. Ferrer-Ribas, J. Galán, I. Giomataris, H. Gómez, F. J. Iguaz, et al. "Radiopurity of micromegas readout planes." Astroparticle Physics 34, no. 6 (January 2011): 354–59. http://dx.doi.org/10.1016/j.astropartphys.2010.09.003.

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Caccianiga, Barbara, and Alessandra Carlotta Re. "The calibration system for the Borexino experiment." International Journal of Modern Physics A 29, no. 16 (June 17, 2014): 1442010. http://dx.doi.org/10.1142/s0217751x1442010x.

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Borexino is a large liquid scintillator detector designed to study solar neutrinos in real-time. Since the beginning of data-taking in 2007, Borexino has been able to perform a complete spectroscopy of neutrinos from the Sun, thanks to its unprecedented radiopurity. Calibrations have been crucial for the success of the experiment. In this paper, we describe the Borexino calibration system, emphasizing its most critical aspects, in particular to those related to radiopurity. We also discuss some of the results of the calibration campaigns performed in Borexino Phase-1.
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Bongrand, M. "BiPo prototype for SuperNEMO radiopurity measurements." Journal of Instrumentation 3, no. 06 (June 26, 2008): P06006. http://dx.doi.org/10.1088/1748-0221/3/06/p06006.

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Fitzsimmons, Jonathan, Justin Griswold, Dmitri Medvedev, Cathy Cutler, and Leonard Mausner. "Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium." Molecules 24, no. 6 (March 20, 2019): 1095. http://dx.doi.org/10.3390/molecules24061095.

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During the purification of radioisotopes, decay periods or time dependent purification steps may be required to achieve a certain level of radiopurity in the final product. Actinum-225 (Ac-225), Silver-111 (Ag-111), Astatine-211 (At-211), Ruthenium-105 (Ru-105), and Rhodium-105 (Rh-105) are produced in a high energy proton irradiated thorium target. Experimentally measured cross sections, along with MCNP6-generated cross sections, were used to determine the quantities of Ac-225, Ag-111, At-211, Ru-105, Rh-105, and other co-produced radioactive impurities produced in a proton irradiated thorium target at Brookhaven Linac Isotope Producer (BLIP). Ac-225 and Ag-111 can be produced with high radiopurity by the proton irradiation of a thorium target at BLIP.
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Lutter, Guillaume, Mikael Hult, Robert Billnert, Andreas Oberstedt, Stephan Oberstedt, Erica Andreotti, Gerd Marissens, Ulf Rosengård, and Faidra Tzika. "Radiopurity of a CeBr3 crystal used as scintillation detector." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 703 (March 2013): 158–62. http://dx.doi.org/10.1016/j.nima.2012.11.174.

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Gómez, H. "BiPo: A dedicated radiopurity detector for the SuperNEMO experiment." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 718 (August 2013): 52–55. http://dx.doi.org/10.1016/j.nima.2012.12.063.

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Lombardi, Paolo, and Augusto Goretti. "Borexino: Low background techniques adopted during the installation." International Journal of Modern Physics A 29, no. 16 (June 17, 2014): 1442006. http://dx.doi.org/10.1142/s0217751x14420068.

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Borexino achieved radiopurity world records. During each phase of the Experiment, starting from the fabrication up to the commissioning, various techniques to reach this important result have been adopted. A special care has been taken in the material screening and selection, in the component cleaning and installation and in the scintillator purification and handling. In this paper, the installation part will be described.
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Aznar, F., J. Castel, S. Cebrián, T. Dafni, A. Diago, J. A. García, J. G. Garza, et al. "Assessment of material radiopurity for Rare Event experiments using Micromegas." Journal of Instrumentation 8, no. 11 (November 15, 2013): C11012. http://dx.doi.org/10.1088/1748-0221/8/11/c11012.

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Dissertations / Theses on the topic "Radiopurity"

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FORMOZOV, ANDREY. "SEARCH FOR NON-STANDARD NEUTRINO INTERACTIONS WITH LARGE-VOLUME LIQUID SCINTILLATOR DETECTORS." Doctoral thesis, Università degli Studi di Milano, 2019. http://hdl.handle.net/2434/646205.

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Even though electroweak part of the Standard Model passed decades of testing and precision measurements, there is still a space for the presence of new physics. In particular, the neutrino sector in the last years has been reaching the level of precision oscillometry. However, the current data are not able to exclude many possible extended scenarios, in which new interactions comparable with the standard ones are still possible. This work is dedicated to beyond-Standard-Model interactions of neutrino and electron called Non-Standard Interactions or shortly NSI. Analogously to standard electroweak interactions, NSI could be charged current (CC) and neutral current (NC) type. Usually, in analyses of experiments, NC and CC NSI are considered separately, and I follow this strategy in the course of this work. The global search for NSI involves almost all experimental approaches of neutrino physics and goes far beyond the scope of this work. Here, instead, I look at the problem through the prism of the large-scale liquid scintillator experiments and confine the investigation to the search for NC NSI with solar neutrinos. In addition, I review CC NSI with reactor neutrinos at medium baseline. As a contribution into upcoming JUNO experiment, I investigate liquid scintillator energy response and radiopurity, which are essential for the successful realization of solar and reactor neutrino physics programs and, therefore, for NC and CC NSI search. I analyze in detail the non-linearity and energy resolution of liquid scintillator. I develop an experimental Compton coincidence technique with High Pure Germanium gamma spectrometer, provide a conservative measurement of the Birks’ ionization quenching constant kB and discuss problems related to its measurement. Throughout the study, I also formulate the optimal characteristics of the experimental apparatus for this improvement. The ultimate goal of this investigation is separating intrinsic energy resolution, which was never yet robustly measured for liquid organic scintillators. The intrinsic energy resolution may have an impact on the energy response of the new generation large liquid scintillator detectors such as JUNO and have to be carefully investigated. Applying single photon counting technique, I perform a calibration of the PMT charge scale and set apart statistical term from the total liquid scintillator energy resolution. Remaining term significantly differs from zero, indicating the presence of additional contribution associated with the intrinsic energy resolution. As an outlook, the precise estimation of the light collection should be conducted in order to ensure that its contribution is not significant to mimic the observed intrinsic resolution effect. The analysis of the radiopurity of the liquid scintillator showed that it is close to the one demanded for reactor neutrino program and CC-NSI search. Still, an improvement of purification procedure is necessary to fulfill solar neutrino program requirements for NC NSI search. Finally, I place the limits to NC NSI parameters for electron and tau neutrino with the Phase II data of Borexino experiment. The limits are quite stringent and compatible with other experiments. The best up-to-date limit to the left electron NSI-parameter is obtained. The allowed regions could be further significantly reduced by incorporating the current result in a global analysis. Besides, the same analysis approach is used to measure the squared sine of the Weinberg angle with a precision comparable with reactor neutrino experiments and place the most robust limit on the probability of ν−ν̄ conversion in the Sun for solar neutrinos with energies Eν < 1.8 MeV. I conclude with deliberation on the applicability of solar neutrino NC NSI approach for current JUNO detector configuration.
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Natchez, Francis. "Mesure de la radiopureté en thallium 208 et en bismuth 214 d'une feuille de molybdène avec le détecteur NEMO." Clermont-Ferrand 2, 1993. http://www.theses.fr/1993CLF21528.

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Le detecteur nemo 2 est un detecteur de traces associe a des detecteurs d'energie et de temps de vol construit pour etudier la faisabilite d'une experience de double desintegration beta zero neutrino ((ov)). Dans cette these qui se situe dans la phase de demarrage de l'experience nemo 2, nous presentons une methode de mesure de la radiopurete en #2#0#8tl et en #2#1#4bi de la source avec le detecteur lui-meme, ces deux radioisotopes etant les seuls pouvant contribuer dans la region d'energie 3 mev ou le signal (ov) du #1#0#0mo est attendu. Cette methode consiste a utiliser le canal 1e1 qui donne un taux de comptage permettant l'etude de la radioactivite de la source et a appliquer des coupures appropriees sur les distributions en energie des evenements enregistres qui permettent de selectionner ceux venant du #2#0#8tl et du #2#1#4bi. La simulation dans la source de contamination de divers radioisotopes, nous a permis de definir ces coupures et de calculer les efficacites correspondantes. Nous avons mesure par cette methode, d'une part la contamination en #2#0#8tl et en #2#1#4bi d'une source de molybdene naturel contenant un taux appreciable de ces radioisotopes, et d'autre part celle d'une source de molybdene naturel de grande radiopurete. Les resultats obtenus sont en bon accord avec ceux donnes par des detecteurs germanium bas bruit de fond, habituellement utilises pour ces mesures. La sensibilite de la mesure avec nemo 2 est de 0,3 dpm/kg pour quelque 2000 heures de prises de donnees
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Nantais, Corina. "Radiopurity measurement of acrylic for the DEAP-3600 dark matter experiment." Thesis, 2014. http://hdl.handle.net/1974/8554.

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The liquid argon target of the DEAP-3600 dark matter detector is contained by an extremely radiopure acrylic vessel. Alpha decays from the inner surface of the acrylic vessel are a source of background. If a fraction of the alpha energy is observed, or if the recoiling nucleus from the alpha decay is observed, the event will not be separated from a dark matter candidate event. In addition to the low level of inherent contamination from uranium and thorium, the Pb-210 from Rn-222 diffusion during manufacturing must be measured. The limit for the DEAP-3600 acrylic vessel is 1.1 × 10^−20 g/g Pb-210. By vaporizing a large quantity of acrylic and counting the concentrated residue with an ultralow background HPGe well detector and a low background alpha spectrometer, the bulk acrylic was found to have an upper limit of 10^−19 g/g Pb-210. The design, installation, commissioning, operation, and analysis for various aspects of the acrylic assay are described.
Thesis (Master, Physics, Engineering Physics and Astronomy) -- Queen's University, 2014-01-14 19:27:47.533
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Conference papers on the topic "Radiopurity"

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Picado, Esteban, Luis Mario Fraile, Iulian Bandac, and José Manuel Udias. "Radiopurity Study of an Encapsulated CeBr3 Crystal." In Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014). Journal of the Physical Society of Japan, 2015. http://dx.doi.org/10.7566/jpscp.6.030133.

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Nantais, C. M., B. T. Cleveland, and M. G. Boulay. "Radiopurity measurement of acrylic for DEAP-3600." In LOW RADIOACTIVITY TECHNIQUES 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques. AIP, 2013. http://dx.doi.org/10.1063/1.4818105.

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Forster, Gary, Henning Beck, and Andrea Pocar. "200 Kg of Underground Argon: The Struggle for Radiopurity." In 200 Kg of Underground Argon: The Struggle for Radiopurity. US DOE, 2018. http://dx.doi.org/10.2172/1771287.

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Gómez, H., and SuperNEMO Collaboration. "BiPo: A dedicated radiopurity detector for the SuperNEMO experiment." In LOW RADIOACTIVITY TECHNIQUES 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques. AIP, 2013. http://dx.doi.org/10.1063/1.4818084.

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Álvarez, V., I. Bandac, A. Bettini, F. I. G. M. Borges, S. Cárcel, J. Castel, S. Cebrián, et al. "Radiopurity control in the NEXT-100 double beta decay experiment." In LOW RADIOACTIVITY TECHNIQUES 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques. AIP, 2013. http://dx.doi.org/10.1063/1.4818073.

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Vollbrecht, Moritz Cornelius. "OSIRIS – An online scintillator radiopurity monitor for the JUNO experiment." In The European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.398.0212.

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Cebrián, S., J. Pérez, I. Bandac, L. Labarga, V. Álvarez, A. I. Barrado, A. Bettini, et al. "Radon and material radiopurity assessment for the NEXT double beta decay experiment." In LOW RADIOACTIVITY TECHNIQUES 2015 (LRT 2015): Proceedings of the 5th International Workshop in Low Radioactivity Techniques. AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4927990.

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Journal articles
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