Performance of large area Micro Pixel Chamber

被引：27
作者：
Nagayoshi, T [1 ]
Kubo, H
Miuchi, K
Ochi, A
Orito, R
Takada, A
Tanimori, T
Ueno, M
机构：
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 513卷 / 1-2期
关键词：
micro pattern gas detector; imaging; pixel electrode; large area;
D O I：
10.1016/j.nima.2003.08.047
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A novel gaseous two-dimensional imaging detector "Micro Pixel Chamber (mu-PIC)" has been developed. This detector is based on double sided printed circuit board (PCB). We have developed large area (10 cm x 10 cm) mu-PICs with 65536 pixel anodes of 400 mum pitch on a 100 mum thick insulating substrate. Achieved energy resolution was 30% (FWHM) at 5.9 keV, and a gas gain of 7000 was obtained with argon ethane (8:2) gas mixture. This gain is high enough to detect minimum ionizing particles with such a small electrode pitch. Although several discharges occurred during 65 h continuous operation, the detectors have kept stable operation with high gain. The mu-PIC is a useful detector for many applications e.g. X-ray, gamma ray, and charged particle imaging. The micro electrode structure allows us to measure directions of primary electrons due to incident X-rays or gamma rays, which provide a strong method for X-ray polarimetry and gamma-ray imaging. (C) 2003 Elsevier B.V. All rights reserved.
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页码：277 / 281
页数：5
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