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CHEN Yuan, GUO Hai-ping, AN Li, MOU Yun-feng, ZHAO Qiu-wen(Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,Mianyang 621900, China). Multiplication and Reaction Rate in Vanadium Sphere With D-T Neutron[J]. Atomic Energy Science and Technology, 2003, 37(2): 128-128. DOI: 10.7538/yzk.2003.37.02.0128
Citation: CHEN Yuan, GUO Hai-ping, AN Li, MOU Yun-feng, ZHAO Qiu-wen(Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics,Mianyang 621900, China). Multiplication and Reaction Rate in Vanadium Sphere With D-T Neutron[J]. Atomic Energy Science and Technology, 2003, 37(2): 128-128. DOI: 10.7538/yzk.2003.37.02.0128
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  • The neutron leakage multiplication in vanadium sphere with DT neutron is measured using the total absorption method. A polyethylene sphere with an outer radius of 69 cm is used as the total absorption detector (TAD). A 6Li glass detector is used to measure the radial distributions of neutron count rate in the TAD. This detector has the same 1/V characteristic absorption to thermal neutrons as element H. The distributions of reaction rate of threshold detectors Al, Fe, In, V in vanadium sphere, are measured using 14 MeV neutron source. The neutron multiplication and reaction rate are calculated using MCNP/4A code with ENDF/BⅥ and FENDL2 library data. The measured results are compared with the calculated. The calculated result by ENDF/BⅥ library data coincides with the measured results. However the calculated value with FENDL2 library data is about 4% larger than the measured.
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