The electron drift velocity in the HARP TPC

Apart from the electric field strength, the drift velocity depends on gas pressure and temperature, on the gas composition and on possible gas impurities. We show that the relevant gas temperature, while uniform across the TPC volume, depends significantly on the temperature and flow rate of fresh gas....

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Detalles Bibliográficos
Autores principales: Ammosov, V, Bolshakova, A, Boyko, I, Chelkov, G, Dedovitch, D, Dydak, F, Elagin, A, Gostkin, M, Guskov, A, Koreshev, V, Krumshtein, Z, Nefedov, Y, Nikolaev, K, Wotschack, J, Zhemchugov, A
Lenguaje:eng
Publicado: 2008
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1157235
Descripción
Sumario:Apart from the electric field strength, the drift velocity depends on gas pressure and temperature, on the gas composition and on possible gas impurities. We show that the relevant gas temperature, while uniform across the TPC volume, depends significantly on the temperature and flow rate of fresh gas. We present the correction algorithms for changes of pressure and temperature, and the precise measurement of the electron drift velocity in the HARP TPC.

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