Status of the Gas System for a Pestov Counter Array

The gas system to supply the Pestov counter array by a special gas composition at the pressure of 12 bar is presented. The stability of PesTOF gas mixture composition has been investigated by gaschromatographical methods. The performance of the gas system was dramatically improved by the introductio...

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Detalles Bibliográficos
Autores principales: Bosteels, Michel, Eschke, J, Frankenfeld, Ulrich, Lühning, J, Lynen, U, Pestov, Y N, Sann, H, Schmidt, H R, Schreiber, B M, Stelzer, H
Lenguaje:eng
Publicado: 1997
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/689335
Descripción
Sumario:The gas system to supply the Pestov counter array by a special gas composition at the pressure of 12 bar is presented. The stability of PesTOF gas mixture composition has been investigated by gaschromatographical methods. The performance of the gas system was dramatically improved by the introduction of a standard 50 l gas bottle instead of the rubber compensator which led to a decrease of the organic counter gas components by adsorption. The system now allows a running over several weeks with a stable gas composition. In addition, the influence of the counter spark operation could be identified by the appearances of several new substances in the ppm range.

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