Pad equalization and dE/dx in the HARP TPC

In the HARP TPC, the specific ionization dE/dx depends critically on the pad equalization, which in turn depends on the crosstalk correction. We discuss the TPC pad equalization algorithm and its performance in terms of average and resolution of dE/dx of negative pions with an average active track l...

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Detalles Bibliográficos
Autores principales: Ammosov, V, 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: 2006
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1143018
Descripción
Sumario:In the HARP TPC, the specific ionization dE/dx depends critically on the pad equalization, which in turn depends on the crosstalk correction. We discuss the TPC pad equalization algorithm and its performance in terms of average and resolution of dE/dx of negative pions with an average active track length of 300 mm. The observed dE/dx of pions and protons agrees satisfactorily with the theoretical expectation, the resolution for a minimum-ionizing track length of 300 mm is 16%.

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