TEST OF A LARGE-SCALE PROTOTYPE OF THE DIRC, A CHERENKOV IMAGING DETECTOR BASED ON TOTAL INTERNAL-REFLECTION FOR BABAR AT PEP-II

Authors
ALEKSAN R AMERMAN L ASTON D BENKEBIL M BESSON P BONNEAUD G BOURGEOIS P BROWN D CHAUVEAU J CIOCIO A CIZERON R DELESQUEN A DELBUONO L EMERY S GAIDOT A GOSSET L HALE D DEMONCHENAULT GH HAMON O HEARTY C JOUENNE A KADYK J KAWAHARA H KRUEGER H LONDON G LONG M LU A LUTZ AM LYNCH G MCSHURLEY D MEADOWS B NOPPE JM PASQUETTO E PLASZCZYNSKI S POPE W PRIPSTEIN M PRZYBYLSKI G RASSON J RATCLIFF BN REIF R SARAZIN X SCHUNE MH SCHWIENING J SEN S SHAPIRO S SOKOLOFF M STAENGLE H STILES P TAYLOR JD THERVILLE D TORASSA E VASILEIADIS G VASSEUR G VAVRA J VERDERI M WARNER D WEBER TF WENZEL W WILSON R WORMSER G YECHE C ZITO M
Citation
R. Aleksan et al., TEST OF A LARGE-SCALE PROTOTYPE OF THE DIRC, A CHERENKOV IMAGING DETECTOR BASED ON TOTAL INTERNAL-REFLECTION FOR BABAR AT PEP-II, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 397(2-3), 1997, pp. 261-282
Citations number
22
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
397
Issue
2-3
Year of publication
1997
Pages
261 - 282
Database
ISI
SICI code
0168-9002(1997)397:2-3<261:TOALPO>2.0.ZU;2-I
Abstract
The principles of the DIRC ring imaging Cherenkov technique are briefl y explained and its choice for the BABAR detector particle identificat ion system is motivated. A large scale prototype of the DIRC for the B ABAR experiment is then described. Details of the design of this proto type and its test in a hadronic particle beam at the CERN-PS are prese nted, and results from various prototype and test configurations are g iven. For example, after correcting for geometrical acceptance and est imated collection effects, the number of photoelectrons was measured t o be 146 +/- 1.8 +/- 9 cm(-1), for a track angle of 20 degrees at zero photon transmission distance. The effective attenuation loss was meas ured to be 4.1 +/- 0.7% per meter of bar length, and the observed sing le photon resolution was 10.0 +/- 0.2 mrad. This performance is consis tent with what was expected from earlier tests and Monte Carlo simulat ions, and will be fully adequate for the physics demands of the BABAR experiment.