The pilot experimental study of 14 MeV fast neutron digital radiography |
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Authors: | Bin Tang ChangGen Zhou HeYong Huo Yang Wu Bin Liu BenChao Lou and Yong Sun |
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Institution: | (1) Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China |
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Abstract: | 14 MeV Fast neutrons has good penetrability and the 14 MeV fast neutron radiography can meet the need of Non-Destructive Test
of the structure and lacuna of heavy-massive sample, whose shell is made of heavy metal and in which there are some hydrogen
materials, and the study of fast neutron digital radiography just begins in China. By the use of a D-T accelerator, a digital
imaging system made up of a fast neutron scintillation screen made of ZnS(Ag) and polypropylene, lens and a scientific grade
CCD, the experimental study of fast neutron radiography has been done between 4.3×1010−6.8×1010 n/s of neutron yield. Some 14 MeV fast neutron digital radiographs have been gotten. According to experimental radiographs
and their data, the performance of the fast neutron scintillation screen and the basic characters of 14 MeV fast neutron radiography
are analyzed, and it is helpful for the further research.
Supported by the Science and Technology Fund of China Academy of Engineering Physics (Grant No. 251) |
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Keywords: | fast neutron digital radiography experiment analysis |
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