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DEVELOPMENT OF AN EXTENDED-RANGE BONNER SPHERE SPECTROMETER FOR CHINA INITIATIVE ACCELERATOR-DRIVEN SYSTEM.
Wen, Z W; Song, S Y; Xu, J K; Gong, Y W; Huang, Y X; Ran, J L; Tang, X Q; Chen, Z Q; Li, Y; Luo, P.
Affiliation
  • Wen ZW; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Song SY; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Xu JK; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Gong YW; Department of Nuclear Science and Engineering, School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Huang YX; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Ran JL; Department of Nuclear Science and Engineering, School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Tang XQ; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Chen ZQ; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Li Y; Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
  • Luo P; Department of Nuclear Science and Engineering, School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
Radiat Prot Dosimetry ; 199(2): 152-163, 2023 Feb 15.
Article in En | MEDLINE | ID: mdl-36484699
To measure the extended-range neutron spectra and calibrate the extended-range neutron dosemeters of the China initiative Accelerator-Driven System (CiADS), an Extended-range Bonner Sphere Spectrometer (EBSS) has been developed. The EBSS was designed based on the PHITS codes, investigating various combinations of materials and diameters of the neutron moderators and the neutron multipliers for extended-range neutrons. Finally, seven polyethylene-only spheres and seven extended-range spheres were selected and subsequently built. The neutron multipliers of the extended-range spheres embedded concentric shells of lead, copper and tungsten. The response functions of the EBSS were analyzed and experimentally validated. It was subsequently tested with 252Cf neutron source and cosmic ray neutron source. The results demonstrate that the EBSS is capable of accurately measuring neutron spectra.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polyethylene / Neutrons Country/Region as subject: Asia Language: En Journal: Radiat Prot Dosimetry Year: 2023 Document type: Article Affiliation country: China Country of publication: United kingdom
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Polyethylene / Neutrons Country/Region as subject: Asia Language: En Journal: Radiat Prot Dosimetry Year: 2023 Document type: Article Affiliation country: China Country of publication: United kingdom