2013年1月
Neutron imaging detector based on the mu PIC micro-pixel chamber
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
- 巻
- 697
- 号
- 開始ページ
- 23
- 終了ページ
- 31
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.nima.2012.08.036
- 出版者・発行元
- ELSEVIER SCIENCE BV
We have developed a prototype time-resolved neutron imaging detector employing the micro-pixel chamber (mu PIC), a micro-pattern gaseous detector, coupled with a field programmable gate array-based data acquisition system for applications in neutron radiography at high-intensity neutron sources. The prototype system, with an active area of 10 x 10 cm(2) and operated at a gas pressure of 2 atm, measures both the energy deposition (via time-over-threshold) and three-dimensional track of each neutron-induced event, allowing the reconstruction of the neutron interaction point with improved accuracy. Using a simple position reconstruction algorithm, a spatial resolution of 349 +/- 36 mu m was achieved, with further improvement expected. The detailed tracking allows strong rejection of background gamma-rays, resulting in an effective gamma sensitivity of 10(-12) or less, coupled with stable, robust neutron identification. The detector also features a time resolution of 0.6 us. (c) 2012 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.nima.2012.08.036
- ISSN : 0168-9002
- J-Global ID : 201302226040682387
- Web of Science ID : WOS:000311572200005