Fast Neutron Spectroscopy with a Nitrogen-Based Gaseous Detector
| Autor: | Ioannis Giomataris, P. Knights, Konstantinos Nikolopoulos, T. Papaevangelou, Thomas James Neep, I. Katsioulas, R. Ward |
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| Přispěvatelé: | Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay |
| Rok vydání: | 2019 |
| Předmět: |
Neutrons
Velocity measurement Nitrogen 010308 nuclear & particles physics Computer science Physics Nuclear engineering Detector Proportional counter Detectors Scintillator 01 natural sciences Neutron temperature Radiation detectors 030218 nuclear medicine & medical imaging Neutron spectroscopy 03 medical and health sciences Neutron capture 0302 clinical medicine Recoil 0103 physical sciences Neutron [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] GeneralLiterature_REFERENCE(e.g. dictionaries encyclopedias glossaries) Spectroscopy |
| Zdroj: | 2019 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) 2019 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC), Oct 2019, Manchester, United Kingdom. pp.1-3, ⟨10.1109/NSS/MIC42101.2019.9060052⟩ |
| Popis: | International audience; A simple, efficient and safe to use but also affordable fast neutron spectroscopic system is the Holy Grail in many scientific and industrial communities. 3He based detectors provide a solution that fulfils most of the requirements but its high demand combined with its scarcity has created a worldwide shortage and efforts are focused on finding an alternative solution. Several detectors are proposed for this task, such as BF3proportional counters, plastic scintillators, and recoil detectors, all with disadvantages that make their adoption far from ideal. We propose a system based on a spherical proportional counter filled with nitrogen-based gas mixtures to exploit the 14N(n,α)B11and 14N(n,p)C14reactions for the detection of fast neutrons. 3He and N2have comparable Q-values and absorption cross-sections for fast neutron capture, o ering similar detection capabilities. In the future, such a detector could be utilised in industrial applications such as reactor monitoring, medical physics, accelerator facilities, homeland security, fuel searches and serve as a tool in scientific research. |
| Databáze: | OpenAIRE |
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