Intrinsic background radiation of LaBr3(Ce) detector via coincidence measurements and simulations
Intrinsic background radiation of LaBr3(Ce) detector via coincidence measurements and simulations
复制标题
通过符合测量和模拟获得 LaBr3(Ce) 探测器的本征背景辐射
DOI:
10.1007/s41365-020-00812-8
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发表时间:
2020-07
影响因子:
2.8
通讯作者:
Zheng Yun
中科院分区:
文献类型:
--
作者:
Cheng Hao;Sun Bao-Hua;Zhu Li-Hua;Li Tian-Xiao;Li Guang-Shuai;Li Cong-Bo;Wu Xiao-Guang;Zheng Yun
The LaBr3(Ce) detector has attracted much attention in recent years because of its superior characteristics compared with other scintillating materials in terms of resolution and efficiency. However, it has a relatively high intrinsic background radiation because of the naturally occurring radioisotopes in lanthanum, actinium, and their daughter nuclei. This limits its applications in low-counting rate experiments. In this study, we identified the radioactive isotopes in the phi 3 '' x 3 '' Saint-Gobain B380 detector by a coincidence measurement using a Clover detector in a low-background shielding system. Moreover, we carried out a Geant4 simulation of the experimental spectra to evaluate the activities of the main internal radiation components. The total activity of the background radiation of B380 is determined to be 1.523 (34) Bq/cm(3). The main sources include La-138 at 1.428 (34) Bq/cm(3), Tl-207 at 0.0135 (13) Bq/cm(3), Bi-211 at 0.0136 (15) Bq/cm(3), Po-215 at 0.0135 (3) Bq/cm(3), Rn-219 at 0.0125 (12) Bq/cm(3), Fr-223 at 0.0019 (11) Bq/cm(3), Ra-223 at 0.0127 (10) Bq/cm(3), Th-227 at 0.0158 (22) Bq/cm(3), and Ac-227 at 0.0135 (13) Bq/cm(3). Of these, the activities of Tl-207, Po-211, Po-215, Fr-223, and Ac-227 are deduced for the first time from the secular equilibrium established in the decay chain of Ac-227.
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影响因子:
3.6
作者:
刘军辉;李道武;章志明;王宝义;张天保;郝佳;魏龙
通讯作者:
刘军辉;李道武;章志明;王宝义;张天保;郝佳;魏龙
影响因子:
4
作者:
Alekhin, M. S.;de Haas, J. T. M.;Dorenbos, P.
通讯作者:
Dorenbos, P.
DOI:
10.1016/b978-0-08-099438-3.00003-3
发表时间:
2019
期刊:
Compostable Polymer Materials
影响因子:
--
作者:
Ewa Rudnik
通讯作者:
Ewa Rudnik
DOI:
10.1016/j.nima.2007.08.221
发表时间:
2007-11
影响因子:
1.4
作者:
R. Nicolini;F. Camera;N. Blasi;S. Brambilla;R. Bassini;C. Boiano;A. Bracco;F. Crespi;O. Wieland;G. Benzoni;S. Leoni;B. Million;D. Montanari;A. Zalite
通讯作者:
R. Nicolini;F. Camera;N. Blasi;S. Brambilla;R. Bassini;C. Boiano;A. Bracco;F. Crespi;O. Wieland;G. Benzoni;S. Leoni;B. Million;D. Montanari;A. Zalite
DOI:
10.1109/nssmic.1997.672570
发表时间:
1997-11
期刊:
1997 IEEE Nuclear Science Symposium Conference Record
影响因子:
--
作者:
M. Moszynski;M. Kapusta;D. Wolski;M. Szawłowski;W. Klamra
通讯作者:
M. Moszynski;M. Kapusta;D. Wolski;M. Szawłowski;W. Klamra