Test of a small prototype of the KLOE drift chamber in magnetic field

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 449; no. 1; pp. 237 - 247
• Main Authors: Avanzini, C, Ciapetti, G, Lucia, E.De, Lacava, F, Luisi, C, Margutti, G, Nisati, A, Passaseo, M, Pontecorvo, L, Rosati, S, Veneziano, S, Verzocchi, M, Valente, P, Bacci, C, Ceradini, F, Bencivenni, G, Calcaterra, A, de Sangro, R, Simone, P.De, Felici, G, Finocchiaro, G, Piccolo, M
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 11-07-2000
• Subjects: Drift chamber; Helium-based mixture; Test in magnetic field; Helium-based mixture; Test in magnetic field; Drift chamber
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/S0168-9002(99)01372-8

We report on a beam test of a small prototype of the KLOE drift chamber in magnetic field. The chamber was operated with a 90% He–10% iC
4H
10 gas mixture. Drift space–time relations were studied. The average spatial resolution is about
110
μm
in the absence of magnetic field and
120
μm
in a
0.6
T
magnetic field. Measurements of the primary ionization and drift velocity are reported. The measurement of d
E/d
x in a He-based gas mixture is also discussed.