The Polaris-H imaging spectrometer
The Polaris-H imaging spectrometer
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DOI：
10.1016/j.nima.2014.12.110
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发表时间：
2015-06-01
影响因子：
1.4
通讯作者：
He, Zhong
中科院分区：
文献类型：
--
作者：
Wahl, Christopher G.;Kaye, Willy R.;He, Zhong
近日，H3D设计并推出了一款伽马射线成像光谱仪系统，名为Polaris-H。 Polaris-H 设计用于在整个核电站中进行伽马能谱分析和成像。它在便携式防水外壳中集成了 3D 位置敏感像素化 CZT 探测器 (20 mm x 20 mm x 15 mm)、相关读出电子设备、嵌入式计算机、5 小时电池和光学相机。总质量约为4公斤，系统启动时间为2分钟。此外，它还具有平板电脑连接，可实时显示伽马射线光谱和各个方向伽马射线分布的同位素特定图像。列表模式数据保存到外部 USB 记忆棒中。基于像素化深度传感技术，光谱学在 662 键下的 FWHM 通常优于 1.1% FWHM，并且在 662 keV 下的成像效率在所有方向上的变化小于两倍（除了通过电池的方向）。测量是在受污染的环境、高辐射场和狭窄的宿舍中进行的。 (C) 2015 Elsevier B.V. 保留所有权利。
Recently, H3D has designed and introduced a gamma-ray imaging spectrometer system named Polaris-H. Polaris-H was designed to perform gamma spectroscopy and imaging throughout nuclear power plants. It integrates a 3D-position-sensitive pixelated CZT detector (20 mm x 20 mm x 15 mm), associated readout electronics, an embedded computer, a 5-h battery, and an optical camera in a portable water-proof enclosure. The total mass is about 4 kg, and the system startup time is 2 min. Additionally, it has a connection for a tablet, which displays a gamma-ray spectrum and isotope-specific images of the gamma-ray distribution in all directions in real time. List-mode data is saved to an external USB memory stick. Based on pixelated depth-sensing technology, spectroscopy is routinely better than 1.1% FWHM at 662 key, and imaging efficiency at 662 keV varies less than a factor of two for all directions, except through the battery. Measurements have been performed in contaminated environments, in high radiation fields, and in cramped quarters. (C) 2015 Elsevier B.V. All rights reserved.