We show that the addition of small amounts of sulphur hexafluoride, SF6, to the present ATLAS baseline gas mixture C2H2F4/C4H10 has a very strong effect in suppressing the avalanche-to-streamer transition. An RPC of 50 x 50 cm(2) area, 2 mm gas gap was operated in pure avalanche, streamer-free mode in a voltage range of about 1 kV. The results of the test suggest that the observed fast signal could be interpreted as the sum of contributions of a number of primary saturated avalanches. (C) 1998 Elsevier Science B.V. All rights reserved.

Camarri, P., Cardarelli, R., Di Ciaccio, A., & Santonico, R. (1998). Streamer suppression with SF6 in RPCs operated in avalanche mode. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 414, 317-324 [10.1016/S0168-9002(98)00576-2].

Streamer suppression with SF6 in RPCs operated in avalanche mode

CAMARRI, PAOLO;DI CIACCIO, ANNA;SANTONICO, RINALDO
1998-09-11

Abstract

We show that the addition of small amounts of sulphur hexafluoride, SF6, to the present ATLAS baseline gas mixture C2H2F4/C4H10 has a very strong effect in suppressing the avalanche-to-streamer transition. An RPC of 50 x 50 cm(2) area, 2 mm gas gap was operated in pure avalanche, streamer-free mode in a voltage range of about 1 kV. The results of the test suggest that the observed fast signal could be interpreted as the sum of contributions of a number of primary saturated avalanches. (C) 1998 Elsevier Science B.V. All rights reserved.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - Fisica Sperimentale
English
Con Impact Factor ISI
Resistive Plate Chambers; gaseous detectors; streamer suppression; sulphur hexafluoride (SF6)
Camarri, P., Cardarelli, R., Di Ciaccio, A., & Santonico, R. (1998). Streamer suppression with SF6 in RPCs operated in avalanche mode. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 414, 317-324 [10.1016/S0168-9002(98)00576-2].
Camarri, P; Cardarelli, R; DI CIACCIO, A; Santonico, R
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/37154
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