Measurement of the neutron spectrum of a Pu-C source with a liquid scintillator

• Published in: Chinese physics C Vol. 33; no. 5; pp. 378 - 382
• Main Author: 王松林 黄翰雄 阮锡超 李霞 鲍杰 聂阳波 仲启平
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.05.2009; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China%China Institute of Atomic Energy, Beijing 102413, China; China Institute of Atomic Energy, Beijing 102413, China
• Subjects: 中子能谱测量; 中子谱; 中微子实验; 响应函数; 液体闪烁体; 能量范围; 脉冲测量; neutron response function; Pu-C source; the SAND-II iterative method; the neutron spectrum of a
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/33/5/012

The neutron response function for a BC501A liquid scintillator （LS） has been measured using a series of monoenergetic neutrons produced by the p-T reaction. The proton energies were chosen such as to produce neutrons in the energy range of 1 to 20 MeV. The principles of the technique of unfolding a neutron energy spectrum by using the measured neutron response function and the measured Pulse Height （PH） spectrum is briefly described. The PH spectrum of neutrons from the Pu-C source, which will be used for the calibration of the reactor antineutrino detectors for the Daya Bay neutrino experiment, was measured and analyzed to get the neutron energy spectrum. Simultaneously the neutron energy spectrum of an Am-Be source was measured and compared with other measurements as a check of the result for the Pu-C source. Finally, an error analysis and a discussion of the results are given.