Dimethyl ether as a drift-chamber gas

doi:10.1016/0168-9002(86)90793-X

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 251, Issue 2, 15 October 1986, Pages 292-296

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Abstract

We have continued the testing of dimethyl ether as a drift-chamber gas in order to improve the understanding of its properties. In particular, we report on measurement accuracy, on systematic effects, and some preliminary data on the ageing of a detector filled with dimethyl ether.

References (6)

F. Villa
Nucl. Instr. and Meth.
(1983)
M. Basile
Nucl. Instr. and Meth.
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R. Desalvo
Nucl. Instr. and Meth.
(1985)

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Cited by (18)

Aging measurement in wire chamber filled with dimethyl ether
1998, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Various methods for the measurement of wire chamber aging were analyzed and a more adequate procedure was proposed. The dependence of the aging rate R for DME-filled wire chamber of the materials and gain was investigated. For the drift chamber of the KEDR detector, R equals 45%/(C/cm). We conclude that, with careful choice of materials, the DME-filled drift chamber can operate without considerable aging effects.
Straw tube detector of FINUDA experiment
1998, Nuclear Physics B - Proceedings Supplements
The FINUDA detector is a magnetic spectrometer optimized to study hypernuclear physics at DAΦNE. The tracking part of detector contains a large cyhndrical array of 2424 straws which are 2.55 m long and are required to provide a space resolution of ∼ 100 μm. The FINUDA straw tube detector is now in an advanced phase of construction at National Laboratories of Frascati. The straw tube detector design, structural components, and readout electronics are presented in this work. A discussion of experimental results obtained from prototypes and treatment of systematic effects, inevitably present in the case of long straw tubes, is included.
Aging in wire chamber filled with dimethyl ether
1997, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The different methods for the measurement of wire chamber aging were analyzed and a more correct procedure was proposed. A study of aging effects under intense radiation in drift chambers filled with dimethyl ether (DME), argon/carbon dioxide and argon/isobutane was performed. The influence of the materials and gain on the aging rate with DME was investigated. With a drift tube in clean conditions the relative gain drop R of 1.7%/(C/cm) was measured. For the drift chamber of the KEDR detector R is 45%/(C/cm). This corresponds to a 2% pulse height decrease per year at a gain of 10⁵ and flux of the charged particles of 1 kHz/cm². We conclude that, providing careful choice of the wire chamber and tubing materials, the DME filled drift chamber can be run without considerable aging effects.
Ageing of microstrip gas chambers: Problems and solutions
1996, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The experimental setup and the procedures used for studying the long-term behaviour of micro-strip gas chambers under sustained irradiation are described in detail. The most significant measurements on ageing obtained in a variety of conditions are reported, and a tentative interpretation of the results is presented. The relevance of these findings for the conception, construction and use of MSGCs trackers in high luminosity LHC detectors is discussed.
A two meter long straw tube prototype for the FINUDA experiment
1995, Nuclear Physics B (Proceedings Supplements)
A prototype using several 10 mm and 20 mm diameter, two meter long aluminized mylar straws has been assembled and tested with a one GeV/c pion beam. While operating with dimethyl ether space resolution, and device systematics have been studied. A simple method for measuring straw eccentricity and correcting for the corresponding systematics has been developed and, once applied, a space resolution better than 40 μm can be reached.
Performance of long straw tubes using dimethyl ether
1995, Nuclear Inst. and Methods in Physics Research, A
A cylindrical tracking detector with an inner radius of one meter employing straw tubes is being envisaged for the FINUDA experiment aimed at hyper-nuclear physics at DAΦNE, the Frascati φ-factory. A prototype using several 10 mm and 20 mm diameter, two meter long aluminized mylar straws has been assembled and tested with a one GeV/c pion beam. While operating with dimethyl ether, gas gain, space resolution, and device systematics have been studied. A simple method of correction for systematics due to straw eccentricity has been developed and, once applied, a space resolution better than 40 μm can be reached.

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Dimethyl ether as a drift-chamber gas

Abstract

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.