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New setup for the characterisation of the AGATA detectors
Ha T.M.H., Korichi A., Le Blanc F., Désesquelles P., Dosme N. et al
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 697 (2012) 123-132 - http://hal.in2p3.fr/in2p3-00751912
Physique/Physique Nucléaire Expérimentale
New setup for the characterisation of the AGATA detectors
T. M. H. Ha1, A. Korichi1, F. Le Blanc2, P. Désesquelles1, N. Dosme1, X. Grave2, N. Karkour1, S. Leboutelier, E. Legay1, D. Linget1, B. Travers1, P. Pariset
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
http://www-csnsm.in2p3.fr/
CNRS : UMR8609 – IN2P3 – Université Paris XI - Paris Sud
batiments 104 et 108 - 91405 Orsay Campus
France
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
http://ipnweb.in2p3.fr
CNRS : UMR8608 – IN2P3 – Université Paris XI - Paris Sud
IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX
France
CSNSM SNO
CSNSM INFOR
CSNSM ELEC
A crucial step in the process of γ-ray tracking is related to the location of the interaction points of all the γ-rays within the AGATA (Advanced GAmma Tracking Array) segmented detectors. This requires a full understanding of the sensitivity of each highly segmented high-purity germanium (HPGe) detectors via the characterisation of the 2D and 3D position response. In this paper, we describe the experimental scanning setup that we developed at Orsay for the AGATA detectors. A collimated 137Cs source on an automated x-y positioning table was used for the front face scanning of the AGATA symmetric prototype detector. The 3D scanning measurement is performed using coincidence techniques based on γ-ray Compton scattering from the AGATA detector into an ancillary coupled detector. In our setup, TOHR (high resolution tomograph developed for small animal imaging) is used as an ancillary detector. The data is collected using TIGRESS cards for digital signal processing. The data flow, readout and storage is NARVAL as used for the full AGATA project. The analysis of the collected data and the obtained results is shown to illustrate our device performances.

Articles dans des revues avec comité de lecture
2012
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (Nucl. Instr.& Meth. Phys. A)
Publisher Elsevier
ISSN 0168-9002 
697
123-132

CSNSM SNO, CSNSM ELEC, CSNSM INFOR
AGATA – HPGe segmented detectors – γ-Ray tracking – Digital acquisition – PSA – TOHR setup – Scanning