DE DX MEASUREMENT IN A HE-BASED GAS-MIXTURE

Authors
ANDRYAKOV A ANTONELLI A BALDINIFERROLI R BENCIVENNI G BUCCI L CALCATERRA A CAMPANA PL DELLAGNELLO S DESANGRO R DESIMONE P FELICI G FINOCCHIARO G FORTI C MOCCIA S PASSALACQUA L PATERA V PICCOLO M KULIKOV V NEDOSEKIN A CATALDI G DENIG A KLUGE W VONHAGEL U WESELER S ELIA V GOLOVATYUK V GORINI E GRANCAGNOLO F PANAREO M PRIMAVERA M SPAGNOLO S DELUCIA E LACAVA F LUISI C PICCA D PONTECORVO L MESSI R PAOLUZI L VALENTE P BACCI C CERADINI F
Citation
A. Andryakov et al., DE DX MEASUREMENT IN A HE-BASED GAS-MIXTURE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 409(1-3), 1998, pp. 390-394
Citations number
5
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
409
Issue
1-3
Year of publication
1998
Pages
390 - 394
Database
ISI
SICI code
0168-9002(1998)409:1-3<390:DDMIAH>2.0.ZU;2-4
Abstract
The performance of a prototype drift chamber operating in a He-based g as mixture as a specific ionisation detector is presented. In spite of the small number of primary ions, Helium performs quite satisfactoril y in measuring energy losses for charged particles: with 50 GeV/c pion s, we have measured in a 90% He-10% iC(4)H(10) mixture a relative ener gy loss resolution of 3.1% with 75 samples 3 cm long, using a modified Truncated Mean technique with 80% accepted fraction. The dependence o f the resolution on several parameters such as the operating voltage, the truncation fraction, the number and length of the samples is discu ssed. (C) 1998 Elsevier Science B.V. All rights reserved.