A new design of the gaseous imaging detector: Micro Pixel Chamber
A new design of the gaseous imaging detector: Micro Pixel Chamber
复制标题
气体成像探测器的新设计：微像素室
DOI：
10.1016/s0168-9002(01)00996-2
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发表时间：
2001
影响因子：
1.4
通讯作者：
M. Nakamura
中科院分区：
文献类型：
--
作者：
A. Ochi;T. Nagayoshi;S. Koishi;T. Tanimori;T. Nagae;M. Nakamura
微像素室(Micro PIC)是一种用于X射线、伽马射线和带电粒子成像的新型气体探测器。该探测器由双面印刷电路板(PCB板)组成。通过厚衬底和宽阳极板实现了Micro PIC的稳定工作。其中一个最突出的特点就是生产过程和成本。生产Micro PIC的基本工艺与生产印刷电路板的基本工艺相同，利用现有技术可以制造出大探测面积(大于10 cm×10 cm)的探测器。我们的第一次测试使用3 cm×3 cm的检测区域，读数为0.4 mm间距。在这些测试中测量了气体增益和稳定性。采用8：2的混合气体，获得了104的气体增益。在连续运行的两天内，阳极和阴极之间也没有放电，增益为103。虽然在较高的增益(约104)中出现了一些放电，但没有发现探测器的严重损坏。
The novel gaseous detector “Micro Pixel Chamber (Micro PIC)” has been developed for X-ray, gamma-ray and charged particle imaging. This detector consists of double sided printing circuit board (PCB). The stable operation of Micro PIC is realized by thick substrate and wide anode strips. One of the most outstanding feature is the process of production and the cost. The base technology of producing Micro PIC is same as producing PCB, then detector with large detection area (more than 10 cm ×10 cm ) can be made by present technology. Our first tests were performed using a 3 cm ×3 cm detection area with a readout of 0.4 mm pitch. The gas gain and stability were measured in these tests. The gas gain of 104was obtained using argon ethane (8:2) gas mixture. Also, there was no discharge between anodes and cathodes in the gain of 103during two days of continuous operation. Although some discharges occurred in the higher gain (approximately 104), no critical damage on the detector was found.