Time Projection Chambers with C-pads for heavy ion tracking

被引：23
|
作者：
Janik, R. [2 ]
Prochazka, A. [1 ]
Sitar, B. [2 ]
Strmen, P. [2 ]
Szarka, I. [2 ]
Geissel, H. [1 ]
Behr, K. -H. [1 ]
Karagiannis, C. [1 ]
Nociforo, C. [1 ]
Weick, H. [1 ]
Winkler, M. [1 ]
机构：
[1] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany
[2] Comenius Univ, Bratislava 84215, Slovakia
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2011年 / 640卷 / 01期
关键词：
Time Projection Chamber; Ion tracking; Delay line; Cathode readout;
D O I：
10.1016/j.nima.2011.02.052
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Time Projection Chambers with C-pads and integrated delay line readout were developed as position sensitive detectors for the Fragment separator at GSI Darmstadt. The main advantages of TPCs are a small amount of matter in the sensitive volume, high spatial resolution, and high tracking efficiency. Working parameters in experimental conditions are presented. Internal spatial resolutions of sigma(x) = 88 mu m and sigma(y) = 38 mu m were achieved. The tracking efficiency dependence on ion beam intensity was studied with (238)U beam at 1 GeV/u energy. Efficiency of more than 99% was achieved up to 40 kHz and over 90% for 250 kHz (238)U beam intensity. Different kinds of ions from proton to uranium were measured in many experiments and confirmed the result obtained. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：54 / 57
页数：4
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