Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1
To validate and determine the contamination source term of fast neutrons produced by the first in-Hospital Neutron Irradiator (IHNI-1) for boron neutron capture therapy (BNCT), a boron-covered 235U fission chamber was designed to be used for the measurement of fast neutron fluence rate. The fluence...
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| Format: | Article |
| Language: | zho |
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Editorial Board of Journal of Isotopes
2017-03-01
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| Series: | Journal of Isotopes |
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| Online Access: | http://www.tws.org.cn/CN/abstract/abstract1732.shtml |
| _version_ | 1818958953993732096 |
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| author | WANG Gu-jun1;CHEN Jun1;LI Chun-juan1;SONG Ming-zhe1;ZHANG Zi-zhu2 |
| author_facet | WANG Gu-jun1;CHEN Jun1;LI Chun-juan1;SONG Ming-zhe1;ZHANG Zi-zhu2 |
| author_sort | WANG Gu-jun1;CHEN Jun1;LI Chun-juan1;SONG Ming-zhe1;ZHANG Zi-zhu2 |
| collection | DOAJ |
| description | To validate and determine the contamination source term of fast neutrons produced by the first in-Hospital Neutron Irradiator (IHNI-1) for boron neutron capture therapy (BNCT), a boron-covered 235U fission chamber was designed to be used for the measurement of fast neutron fluence rate. The fluence response of the fission chamber was optimized according to the calculated fluence response curve of the fission chamber covered by the boron shells with different thicknesses with the MCNP code. Consequently, a 35 mm thick B4C shell was used to shield the low energy neutrons. The fast neutron fluence rate of the thermal and epithermal neutron beams was measured with the fission chamber and compared with the simulated values. The results showed that the fast neutron component in the actual neutron beams was more than that in the simulated ones, less than the target value recommended by IAEA. |
| first_indexed | 2024-12-20T11:33:57Z |
| format | Article |
| id | doaj.art-a6bf6ecaec5b4f81b94927a25b9e373f |
| institution | Directory Open Access Journal |
| issn | 1000-7512 1000-7512 |
| language | zho |
| last_indexed | 2024-12-20T11:33:57Z |
| publishDate | 2017-03-01 |
| publisher | Editorial Board of Journal of Isotopes |
| record_format | Article |
| series | Journal of Isotopes |
| spelling | doaj.art-a6bf6ecaec5b4f81b94927a25b9e373f2022-12-21T19:42:11ZzhoEditorial Board of Journal of IsotopesJournal of Isotopes1000-75121000-75122017-03-0130317017410.7538/tws.2017.youxian.021Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1WANG Gu-jun1;CHEN Jun1;LI Chun-juan1;SONG Ming-zhe1;ZHANG Zi-zhu2To validate and determine the contamination source term of fast neutrons produced by the first in-Hospital Neutron Irradiator (IHNI-1) for boron neutron capture therapy (BNCT), a boron-covered 235U fission chamber was designed to be used for the measurement of fast neutron fluence rate. The fluence response of the fission chamber was optimized according to the calculated fluence response curve of the fission chamber covered by the boron shells with different thicknesses with the MCNP code. Consequently, a 35 mm thick B4C shell was used to shield the low energy neutrons. The fast neutron fluence rate of the thermal and epithermal neutron beams was measured with the fission chamber and compared with the simulated values. The results showed that the fast neutron component in the actual neutron beams was more than that in the simulated ones, less than the target value recommended by IAEA.http://www.tws.org.cn/CN/abstract/abstract1732.shtmlbnct ihni-1 boron-covered 235u fission chamber fluence response fast neutron fluence rate |
| spellingShingle | WANG Gu-jun1;CHEN Jun1;LI Chun-juan1;SONG Ming-zhe1;ZHANG Zi-zhu2 Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 Journal of Isotopes bnct ihni-1 boron-covered 235u fission chamber fluence response fast neutron fluence rate |
| title | Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 |
| title_full | Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 |
| title_fullStr | Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 |
| title_full_unstemmed | Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 |
| title_short | Fast Neutron Fluence Rate Measurement for the Neutron Beams at IHNI-1 |
| title_sort | fast neutron fluence rate measurement for the neutron beams at ihni 1 |
| topic | bnct ihni-1 boron-covered 235u fission chamber fluence response fast neutron fluence rate |
| url | http://www.tws.org.cn/CN/abstract/abstract1732.shtml |
| work_keys_str_mv | AT wanggujun1chenjun1lichunjuan1songmingzhe1zhangzizhu2 fastneutronfluenceratemeasurementfortheneutronbeamsatihni1 |