Characterization measurement of a thick CdTe detector for BNCT-SPECT - Detection efficiency and energy resolution
Characterization measurement of a thick CdTe detector for BNCT-SPECT - Detection efficiency and energy resolution
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DOI：
10.1016/j.apradiso.2014.01.023
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发表时间：
2014-06-01
影响因子：
1.6
通讯作者：
Kato, Itsuro
中科院分区：
文献类型：
--
作者：
Murata, Isao;Nakamura, Soichiro;Kato, Itsuro
作者所在课题组正在进行BNCT-SPECT的研制，该装置采用CdTe器件，可实时监测BNCT的治疗效果。根据设计计算，尺寸固定为1.5 x 2 x 30 mm（3）。对于准直器，已确认其将具有良好的空间分辨率，同时计数的数量将是可接受的大。在制备出CdTe晶体后，进行了表征测量。对于检测效率的计算和测量之间获得了极好的协议。此外，该探测器具有非常好的能量分辨率，因此可以在光谱中区分478 keV和511 keV的伽马射线。(C)2014爱思唯尔有限公司版权所有。
Author's group is carrying out development of BNCT-SPECT with CdTe device, which monitors the therapy effect of BNCT in real-time. From the design calculations, the dimensions were fixed to 1.5 x 2 x 30 mm(3). For the collimator it was confirmed that it would have a good spatial resolution and simultaneously the number of counts would be acceptably large. After producing the CdTe crystal, the characterization measurement was carried out. For the detection efficiency an excellent agreement between calculation and measurement was obtained. Also, the detector has a very good energy resolution so that gamma-rays of 478 key and 511 keV could be distinguished in the spectrum. (C) 2014 Elsevier Ltd. All rights reserved.