Time Projection Chambers for tracking and identification of radioactive beams

被引：24

作者：

Hlinka, V

Ivanov, M

Janik, R

Sitar, B ^{[1
]}

Strmen, P

Szarka, I

Baumann, T

Geissel, H

Schwab, W

机构：

[1] Comenius Univ, Fac Math & Phys, Inst Phys, SK-84215 Bratislava, Slovakia

[2] Comenius Univ, Fac Math & Phys, Dept Phys Nucl, SK-84215 Bratislava, Slovakia

[3] Gesell Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 419卷 / 2-3期

关键词：

D O I：

10.1016/S0168-9002(98)00827-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Time Projection Chambers (TPC) with delay-line readout have been built as position sensitive detectors for high-resolution experiments at the magnetic spectrometer FRS at GSI. The main qualities of TPCs are a small amount of material in the active area, a high tracking efficiency (approximate to 98%), and a spatial resolution of sigma similar to 115 mu m in x-direction, measured by a delay line, and sigma similar to 50 mu m in y-direction, measured by drift time. The TPC works as a true two-dimensional detector. A multiple energy-loss measurement allows to identify light fragments (Z = 4-6) with a resolution better then sigma(Z) < 0.14. With the TPCs, several parameters of the spectrometer could be improved considerably and a higher momentum resolution of the FRS was obtained. The TPC construction, test results, and physical experiments are presented. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：503 / 510

页数：8