| 掺铈YAP晶体的时间响应性能测量 |
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| 引用本文： | 李忠宝,胡孟春,周刚,冯春. 掺铈YAP晶体的时间响应性能测量[J]. 电子测量与仪器学报, 2009, 23(11): 79-82 |
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| 作者姓名： | 李忠宝 胡孟春 周刚 冯春 |
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| 作者单位： | 中国工程物理研究院核物理与化学研究所,绵阳,621900 |
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| 摘 要： | 对YAP：Ce晶体的时间响应性能进行了测量。利用锁模激光器产生的266nm激光照射到YAP：Ce晶体上,用GD40透紫光电管接受晶体产生的荧光,测量了YAP：Ce晶体的时间特性,得到了完整波形和时间性能参数。测量结果表明,波形前沿、半高宽、后沿和衰减时间分别为0.86ns、12.53ns、41.30ns和18.77ns。通过实验发现该晶体衰减时间很短（～26ns）,比NaI：Tl快一个量级。且该晶体具有高光输出、高能量分辨率、高时间分辨率、对γ辐射敏感、γ/n甄别能力强等特点,该国产晶体在γ脉冲辐射测量中是一种比较好的候选晶体。
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| 关 键 词： | 上升时间 下降时间 半高宽 衰减时 YAP:Ce闪烁体 光致激发 |
Time capability measurement of photo-excited fluorescence of YAP:Ce scintillator |
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| Li Zhongbao,Hu Mengchun,Zhou Gang,Feng Chun. Time capability measurement of photo-excited fluorescence of YAP:Ce scintillator[J]. Journal of Electronic Measurement and Instrument, 2009, 23(11): 79-82 |
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| Authors: | Li Zhongbao Hu Mengchun Zhou Gang Feng Chun |
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| Affiliation: | Li Zhongbao Hu Mengchun Zhou Gang Feng Chun (Institue of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China) |
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| Abstract: | Ce scintillator is an inorganic fast-response crystal.The time-capability of YAP:Ce scintillator is measured by the measurement system,that consists of LASER(emits laser of 266nm wavelength),YAP:Ce scintillator,photoelectric cell etc,and the waveform and time-capability parameter are obtained.The experiment result indicates that rise-time,fall-time,FWHM and decay time is 0.86ns,41.30ns,12.536ns and 18.77ns,respectively.The result show that YAP:Ce scintillator is fastresponse crystal,scintillation decay time is faster one order of magnitude than that of NaI:T1.Furthermore it has light ontput and high sensitive toγpulse.It may be used in low intensityγpulse radiation field. |
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| Keywords: | risetime falltime decay time FWHM YAP:Ce photo-excited |
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