- 必威体育下载

姓名
邮箱
手机号码
标题
留言内容
验证码

Abstract

The scintillator detector is one of the most important detectors in the field of radiation detection and radiation physics. The characteristics and performance of scintillator that is a core part of the measurement system, are widely studied. Especially, the nonlinearity of scintillators under high excitation density has received more attention because of its direct influence on the measurement results. In this paper, physical modeling and experimental research on this problem are carried out in-depth. First, the second-order quenching effect of excitons on the scintillator luminescence process is quantitatively analyzed based on the carrier dynamic equation. The luminescence attenuation curves of scintillator under different initial carrier concentrations generated by different excitation densities are obtained. The relationship of the light yield and the efficiency of scintillator with the initial carrier concentration is analyzed, and the results show that with the increase of the initial carrier concentration, the light yield tends to be saturated and the light efficiency decreases. Then CeF ₃scintillator is studied in the Z-scan photoluminescence experiment. The relationship between the light yield and the excitation density is obtained, and the experimental data can be fitted by the carrier quenching model well, which verifies the physical model. At the same time, the energy density threshold corresponding to the 10% nonlinearity of CeF ₃scintillator is obtained.The physical model established in this paper can be used to predict and explain the nonlinear luminescence of various scintillation materials according to different parameters of crystal materials, which is important to understand and solve the nonlinearity problem of scintillators under high excitation density in practical application of radiation detection.

Keywords:

Authors and contacts

Corresponding author:Hei Dong-Wei,heidw@nint.ac.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant No. 11905173) and the Northwest Institute of Nuclear Technology Pre-research Project, China (Grant No. 13021901).

FullText HTML: translate this paragraph

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]

Cited By

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

DownLoad: Full-Size Img PowerPoint

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]

[1]	Fu Yu-Liang, Yang Juan, Wang Bin, Hu Zhan, Xia Xu, Mu Hao.Numerical study on abnormal flameout of 2-cm electron cyclotron resonance ion source. Acta Physica Sinica, 2022, 71(8): 085203.doi:10.7498/aps.71.20212151
[2]	Chen Hua-Jun.Nonlinear optical effect and nonlinear optical mass sensor based on graphene optomechanical system. Acta Physica Sinica, 2020, 69(13): 134203.doi:10.7498/aps.69.20191745
[3]	Zhao Wang, Ping Zhao-Yan, Zheng Qing-Hua, Zhou Wei-Wei.Concentration and thermal quenching of SrGdLiTeO₆: Eu³⁺red-emitting phosphor for white light-emitting diode. Acta Physica Sinica, 2018, 67(24): 247801.doi:10.7498/aps.67.20181523
[4]	Li Gao-Fang, Ma Guo-Hong, Ma Hong, Chu Feng-Hong, Cui Hao-Yang, Liu Wei-Jing, Song Xiao-Jun, Jiang You-Hua, Huang Zhi-Ming, Chu Jun-Hao.Photocarrier dynamics in zinc selenide studied with optical-pump terahertz-probe spectroscopy. Acta Physica Sinica, 2016, 65(24): 247201.doi:10.7498/aps.65.247201
[5]	Zhou Xiao-Dong, Zhang Shao-Feng, Zhou Si-Hua.Enhancement and quenching of photoluminescence from Au nanoparticles and CdTe quantum dot composite system. Acta Physica Sinica, 2015, 64(16): 167301.doi:10.7498/aps.64.167301
[6]	Qu Ding-Rong, Fan Feng-Ying, Song Zeng-Yun.Quenching rate of laser-excited lithium atoms with argon molecules in photochemical reaction. Acta Physica Sinica, 2014, 63(3): 032801.doi:10.7498/aps.63.032801
[7]	Wang Wen-Rui, Yu Jin-Long, Han Bing-Chen, Guo Jing-Zhong, Luo Jun, Wang Ju, Liu Yi, Yang En-Ze.All-optical logic gates based on nonlinear polarization rotation in high nonlinear fiber. Acta Physica Sinica, 2012, 61(8): 084214.doi:10.7498/aps.61.084214
[8]	Li Ying-De, Li Zong-Liang, Leng Jian-Cai, Li Wei, Wang Chuan-Kui.Theoretical study on switching characteristic of photoisomers. Acta Physica Sinica, 2011, 60(7): 073101.doi:10.7498/aps.60.073101
[9]	Han Lin, Song Feng, Zou Chang-Guang, Su Jing, Yan Li-Hua, Tian Jian-Guo, Zhang Guang-Yin.Investigation of concentration quenching effect in Tm3+-doped NaY(WO4)2 crystal. Acta Physica Sinica, 2007, 56(7): 4187-4193.doi:10.7498/aps.56.4187
[10]	Yu Chun-Lei, Dai Shi-Xun, Zhou Gang, Zhang Jun-Jie, Hu Li-Li, Jiang Zhong-Hong.Concentration quenching mechanism in erbium-doped tellurite glass. Acta Physica Sinica, 2005, 54(8): 3894-3899.doi:10.7498/aps.54.3894
[11]	Zhou Wen-Yuan, Tian Jian-Guo, Zang Wei-Ping, Liu Zhi-Bo, Zhang Chun-Ping, Zhang Guang-Yin.Transient thermally induced optical nonlinearities in Kerr media. Acta Physica Sinica, 2004, 53(2): 620-625.doi:10.7498/aps.53.620
[12]	Cao Dong-Mei, Li Yong-Fang, Bi Dong-Yan, Wang Li-Qiang, Cheng Yan-Chun.The study on quenching of the tunneling and nonlinear characteristic of energy splitting in double-well molecules with dc electric fields. Acta Physica Sinica, 2004, 53(8): 2444-2449.doi:10.7498/aps.53.2444
[13]	Zhou Wen-Yuan, Tian Jian-Guo, Zang Wei-Ping, Zhang Chun-Ping, Zhang Guang-Yin, Wang Zhao-Qi.. Acta Physica Sinica, 2002, 51(11): 2623-2628.doi:10.7498/aps.51.2623
[14]	LIANG ZHONG-CHENG, MING HAI, WANG PEI, ZHANG JIANG-YING, LONG YUN-ZE, XIA YONG, XIE JIAN-PING, ZHANG QI-JIN.NONLINEARLY OPTICAL-INDUCED BIREFRINGENCE IN AZO LIQUID CRYSTAL POLYMERS. Acta Physica Sinica, 2001, 50(12): 2482-2486.doi:10.7498/aps.50.2482
[15]	WU PENG-FEI, TANG GUO-QING, ZHANG GUI-LAN, CHEN WEN-JU.THEORETICAL ANALYSIS OF DYNAMIC NONLINEAR ABSORPTION IN PHOTO ISOMERIC MOLECULARS. Acta Physica Sinica, 1996, 45(5): 779-788.doi:10.7498/aps.45.779
[16]	Yang Miao, Si Jin-Hai, Wang Yu-Xiao, Li Chun-Fei.. Acta Physica Sinica, 1995, 44(3): 419-426.doi:10.7498/aps.44.419
[17]	FENG LIANG, HUO SHU-KUN.. Acta Physica Sinica, 1995, 44(12): 1894-1903.doi:10.7498/aps.44.1894
[18]	DU GONG-HUAN.NONLINEAR THEORY OF PHOTOACOUSTIC EFFECT OF RESTRICTED BEAM. Acta Physica Sinica, 1988, 37(5): 769-775.doi:10.7498/aps.37.769
[19]	LUO SHI-YU, LIU ZHENG-RONG, SHAO MING-ZHU.ON THE NONLINEAR PROPERTIES OF THE PHOTO-MAGNETOELECTRIC EFFECT IN SEMICONDUCTORS. Acta Physica Sinica, 1987, 36(5): 547-554.doi:10.7498/aps.36.547
[20]	HE XIAN-TU.DAMPING EFFECT ON THE NONLINEAR STABILIZATION OF STIMULATED BRILLOUIN SCATTERING PROCESS. Acta Physica Sinica, 1982, 31(7): 882-894.doi:10.7498/aps.31.882

Catalog

Vol. 70, Issue 24 - 2021-12-20

Metrics

Abstract views:4429
PDF Downloads:108
Cited By:0

Search

Article