A PARAMETERIZED PULSE-SHAPE ANALYSIS METHOD FOR THE GALLEX SOLAR-NEUTRINO EXPERIMENT

Authors
ALTMANN M VONFEILITZSCH F SCHANDA U
Citation
M. Altmann et al., A PARAMETERIZED PULSE-SHAPE ANALYSIS METHOD FOR THE GALLEX SOLAR-NEUTRINO EXPERIMENT, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 381(2-3), 1996, pp. 398-412
Citations number
30
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
381
Issue
2-3
Year of publication
1996
Pages
398 - 412
Database
ISI
SICI code
0168-9002(1996)381:2-3<398:APPAMF>2.0.ZU;2-1
Abstract
In this paper a pulse shape analysis method developed for the GALLEX s olar neutrino experiment is described. It is generally applicable to l ow background experiments which use proportional counter detectors in conjunction with high resolution pulse shape recording. The method is based on a fit of an analytical expression describing a single or mult iple ionisation event to the recorded pulse shape. This approach serve s to reveal the microscopic charge deposition structure from the recor ded signal. Utilizing this information, suitably parameterized, for ev ent selection allows for high sensitivity background discrimination on an event-by-event basis. Results for different types of events are pr esented.