ACCURATE 3-DIMENSIONAL SIMULATION OF STRAW CHAMBERS USING SLOW, MEDIUM AND FAST GAS-MIXTURES

被引：13

作者：

BIAGI, SF

机构：

[1] Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 3BX

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(91)91011-J

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The positional accuracy and efficiency of straw chambers using gas mixtures of carbon dioxide-isobutane (80:20), argon-isobutane-isopropanol (50:49:1) and argon-carbon tetrafluoride (90:10) are calculated as a function of drift distance with a precision of 1%. Large attachment effects on the resolution and efficiency are predicted for carbon-tetrafluoride-based gas mixtures which are important for SSC applications. The varying electric field in straw chambers leads to nonlinear drift time-distance relationships. The accurate prediction of this relationship to about 1% should allow the track fitting analysis to proceed with more tightly constrained parameters.

引用

页码：133 / 136

页数：4

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