Performance of TMS ionisation chambers in a calorimeter for cosmic ray particles

Author

Engler, J.

Author_Institution

Forschungszentrum Karlsruhe GmbH, Germany

fYear

1996

fDate

15-19 Jul 1996

Firstpage

446

Lastpage

448

Abstract

At the Karlsruhe Research Centre a large calorimeter for high energy cosmic ray particles has come into operation. As active detectors within the iron absorber liquid ionisation chambers using 8 m³ of purified tetramethylsilane (TMS) are used. The method of chamber cleaning and the purification procedure for the liquid are described. The chamber cleaning consists of a chemical process followed by a physical cleaning by glow discharge in an argon atmosphere. The liquid is purified by passage of its vapour over molecular sieves and Oxysorb. All details of the purification system have been optimized for mass production

Keywords

calorimeters; cosmic ray apparatus; glow discharges; ionisation chambers; liquid ionisation chambers; surface cleaning; Ar; Ar atmosphere; Oxysorb; TMS ionisation chambers; calorimeter; chamber cleaning; chemical process; cosmic ray particles; glow discharge; iron absorber; liquid ionisation chambers; mass production; molecular sieves; physical cleaning; purification procedure; purified tetramethylsilane; Argon; Atmosphere; Chemical processes; Cleaning; Detectors; Glow discharges; Ionization chambers; Iron; Molecular sieves; Purification;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on

Conference_Location

Roma

Print_ISBN

0-7803-3560-0

Type

conf

DOI

10.1109/ICDL.1996.565566

Filename

565566