MEASUREMENT OF SPATIAL RESOLUTIONS AND DRIFT VELOCITIES IN A DRIFT-CHAMBER FILLED WITH A HELIUM DME MIXTURE

被引：20

作者：

CINDRO, V

KOLANOSKI, H

LANGE, A

LAUTERJUNG, D

MULLER, F

SIEGMUND, T

SODER, W

THURN, H

机构：

[1] Institut für Physik, Universität Dortmund

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 309卷 / 03期

关键词：

D O I：

10.1016/0168-9002(91)90244-K

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have measured spatial resolutions in a quadratic drift cell using as drift gas pure DME or a mixture of 70% He and 30% DME at atmospheric pressure. For a maximum drift distance of 5 mm we obtained in the He-DME mixture a resolution sigma(r) = 80-mu-m over 60% of the drift cell and for pure DME sigma(r) = 40-mu-m over 80% of the drift cell. The drift velocity of electrons is approximately three times faster in this mixture than in pure DME. A systematic study of the electric field dependence of the drift velocities in various He-DME mixtures is also presented.

引用

页码：411 / 421

页数：11

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