Measurement of Neutron Multiplication in Lead Assemblies

Yuan ChenSouthwest Institute of Nuclear Physics and Chemistry P.O. Box 525-74, Chengdu 610003, People’s Republic of China

Rong LiuSouthwest Institute of Nuclear Physics and Chemistry P.O. Box 525-74, Chengdu 610003, People’s Republic of China

Haipin GuoSouthwest Institute of Nuclear Physics and Chemistry P.O. Box 525-74, Chengdu 610003, People’s Republic of China

Wenmian JiangSouthwest Institute of Nuclear Physics and Chemistry P.O. Box 525-74, Chengdu 610003, People’s Republic of China

Jian ShenSouthwest Institute of Nuclear Physics and Chemistry P.O. Box 525-74, Chengdu 610003, People’s Republic of China

Abstract

Measurements of 14-MeV neutron leakage multiplication in lead are performed by the total absorption method. A polyethylene sphere is used as the neutron moderator and total absorber. Results from a ²³⁵U fission chamber and a ⁶Li glass detector are analyzed. The measurements are 7% lower than ANISN calculations using ENDF/B-VI.

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Measurement of Neutron Multiplication in Lead Assemblies

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Measurement of Neutron Multiplication in Lead Assemblies

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