RESPONSE OF TAPS TO MONOCHROMATIC PHOTONS WITH ENERGIES BETWEEN 45 AND 790 MEV

Authors
GABLER AR DORING W FUCHS M KRUSCHE B METAG V NOVOTNY R ROBIGLANDAU M STROHER H TRIES V MOLENAAR C LOHNER H VANPOL JHG RASCHKE A SUMBERA M VENEMA LB WILSCHUT HW AVERBECK R NIEBUR W SCHUBERT A SIMON RS BECK R PEISE J MILLER GJ OWENS RO ANTON G
Citation
Ar. Gabler et al., RESPONSE OF TAPS TO MONOCHROMATIC PHOTONS WITH ENERGIES BETWEEN 45 AND 790 MEV, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 346(1-2), 1994, pp. 168-176
Citations number
21
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
346
Issue
1-2
Year of publication
1994
Pages
168 - 176
Database
ISI
SICI code
0168-9002(1994)346:1-2<168:ROTTMP>2.0.ZU;2-T
Abstract
The Two Arm Photon Spectrometer TAPS - comprising 384 plastic-BaF2 sci ntillator telescopes - was tested with monochromatic photons in the en ergy range between 45 and 790 MeV. The energy resolution for a collima ted photon beam hitting the central detector module was determined to sigma/E = 0.59% X E(gamma)-1/2 + 1.9% (E, given in GeV). For the the f ast scintillation component alone sigma/E = 0.79% X E(gamma)-1/2 + 1.8 % has been measured. The position resolution of the point of impact am ounts to DELTAx = 2 cm (FWHM) at the highest energies which correspond s to 30% of the diameter of an individual module. Monte Carlo simulati ons using the code GEANT3 are in good agreement with the experimental results.