Neutron and $\boldsymbolγ$-ray Discrimination by a Pressurized Helium-4 Based Scintillation Detector
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arXiv
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866914931007291392 |
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| author | Dutta, Shubham Ghosh, Sayan Saha, Satyajit |
| author_facet | Dutta, Shubham Ghosh, Sayan Saha, Satyajit |
| contents | Pressurized Helium-4 (PHe) based fast neutron scintillation detector offers an useful alternative to organic liquid-based scintillator due to its relatively low response to the $γ$-rays compared to the latter type of scintillator. In the present work, we have investigated the capabilities of a PHe detector for the detection of fast neutrons in a mixed radiation field where both the neutrons and the $γ$-rays are present. Discrimination between neutrons and $γ$-rays is achieved by using fast-slow charge integration method. We have also conducted systematic studies of the attenuation of fast neutrons and $γ$-rays by high-density polyethylene (HDPE). Additionally, the simulation analyses, conducted using GEANT4, provide detailed insights into the interactions of the radiation quanta with the PHe detector. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_09704 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Neutron and $\boldsymbolγ$-ray Discrimination by a Pressurized Helium-4 Based Scintillation Detector Dutta, Shubham Ghosh, Sayan Saha, Satyajit Instrumentation and Detectors Instrumentation and Methods for Astrophysics Pressurized Helium-4 (PHe) based fast neutron scintillation detector offers an useful alternative to organic liquid-based scintillator due to its relatively low response to the $γ$-rays compared to the latter type of scintillator. In the present work, we have investigated the capabilities of a PHe detector for the detection of fast neutrons in a mixed radiation field where both the neutrons and the $γ$-rays are present. Discrimination between neutrons and $γ$-rays is achieved by using fast-slow charge integration method. We have also conducted systematic studies of the attenuation of fast neutrons and $γ$-rays by high-density polyethylene (HDPE). Additionally, the simulation analyses, conducted using GEANT4, provide detailed insights into the interactions of the radiation quanta with the PHe detector. |
| title | Neutron and $\boldsymbolγ$-ray Discrimination by a Pressurized Helium-4 Based Scintillation Detector |
| topic | Instrumentation and Detectors Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2405.09704 |