Optimisation of low-mass drift chambers for HADES

被引：15
作者：
Garabatos, C [1 ]
Karig, W
Muntz, C
Steigerwald, A
Stroth, J
Wustenfeld, J
Zentek, A
Bethge, K
Chernenko, S
Fateev, O
Glonti, L
Smykov, L
Zanewsky, Y
Bokemeyer, H
Koenig, W
Stelzer, H
Zumbruch, P
机构：
[1] Univ Frankfurt, D-60486 Frankfurt, Germany
[2] Joint Inst Nucl Res, Dubna 141980, Russia
[3] Gesell Schwerionenforsch GSI, D-64291 Darmstadt, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 412卷 / 01期
关键词：
D O I：
10.1016/S0168-9002(98)00230-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A set of low-mass drift chambers designed for the tracking of di-electrons in the HADES spectrometer is presented. Short radiation length is ensured by using a Helium-based gas mixture and aluminium cathode wires, whereas the acceptance is maximised by limiting the width of the side frames of the detectors. The measured performance of these devices, which improves with increasing concentration of quencher gas, is shown and discussed. Position resolutions down to 70 mu m have been obtained under stable operation. Long-term gain stability is also reported. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：38 / 46
页数：9
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