Experimental determination of CR-39 counting efficiency to a particles to design the holder of a new radon gas dosemeter
Experimental determination of CR-39 counting efficiency to a particles to design the holder of a new radon gas dosemeter
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DOI：
10.1016/s1350-4487(03)00126-4
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发表时间：
2003-09-01
影响因子：
2
通讯作者：
Gualdrini, G
中科院分区：
文献类型：
--
作者：
Calamosca, M;Penzo, S;Gualdrini, G
为了设计一种新型的氡气剂量计，必须了解SSNTD的计数效率.它主要取决于进入探测器的能量和入射角，然后取决于蚀刻条件，最后取决于径迹计数程序。因此，引出的效率函数代表了所有这些因素。探测器暴露于α粒子在不同的入射角和能量，通过使用Cm-244源;两个替代的NaOH溶液蚀刻条件进行了测试，6.25 N 70 degreesC在6和12小时，分别。使用光学显微镜（267 x）和自动跟踪分析程序进行计数。在我们的标准条件（6 h）下，临界入射角对能量的依赖性导致θ（C）（E）= 380.0 e（（-0.286）。（E-0.050）（1-e（（-0.186.（E-0.050））），并用于设计新型氡气保持器。(C)2003 Elsevier Ltd.保留所有权利。
To design a new radon gas dosemeter, the knowledge of the SSNTD a counting efficiency is essential. It depends primarily on the energy and incidence angle into the detector, then on the etching conditions and finally on the track counting procedure. Therefore the elicited efficiency function represents all these factors. The detectors were exposed to alpha particles at different angles of incidence and energies, by using a Cm-244 source; two alternative NaOH solution etching conditions were tested, 6.25 N 70degreesC at 6 and 12 h, respectively. The counting was performed with a light microscope, 267 x, and with an automatic track analysis procedure. The critical incidence angle dependance on energy, in our standard condition (6 h), resulted theta(C)(E) = 380.0e((-0.286.(E-0.050)))(1-e((-0.186.(E-0.050)))), and it was used to design our new radon gas holder. (C) 2003 Elsevier Ltd. All rights reserved.