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

WANG Song-Lin; HUANG Han-Xiong; RUAN Xi-Chao; LI Xia; BAO Jie; NIE Yang-Bo; ZHONG Qi-Ping; ZHOU Zu-Ying; KONG Xiang-Zhong

doi:10.1088/1674-1137/33/5/012

Chinese Physics C> 2009, Vol. 33> Issue(5) : 378-382 DOI: 10.1088/1674-1137/33/5/012

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

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Abstract：
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.

References

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WANG Song-Lin, HUANG Han-Xiong, RUAN Xi-Chao, LI Xia, BAO Jie, NIE Yang-Bo, ZHONG Qi-Ping, ZHOU Zu-Ying and KONG Xiang-Zhong. Measurement of the neutron spectrum of a Pu-C source with a liquid scintillator[J]. Chinese Physics C, 2009, 33(5): 378-382. doi: 10.1088/1674-1137/33/5/012

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Received: 2008-08-06
Revised: 2008-10-29

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: WANG Song-Lin,

Received Date: 2008-08-06

Accepted Date: 2008-10-29

Available Online: 2009-05-05

Abstract:

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.

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

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通讯作者: 陈斌, bchen63@163.com

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