Physics – Medical Physics
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apsp.conf...90m&link_type=abstract
ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 11th Conference. Held
Physics
Medical Physics
Scintillating Bars, Tracking, Antiproton, Asacusa
Scientific paper
The ASACUSA trap group aim is the production and the study of antihydrogen at the CERN AD (Antiproton Decelerator). After the end of 2007, when the first results were obtained, it was evident that to improve the trapping efficiency of the antiprotons, their annihilation position within the electromagnetic trap had to be reconstructed. A scintillating bar detector, capable of tracking the charged pions produced in the annihilations, has been built for this purpose. The detector consists in 4 XY-modules, made of 96 cm long scintillating bars readout by multianode photomultipliers. The anode outputs are managed by dedicated electronics boards equipped with VA64TAP2.1 (Gamma Medica, Ideas) ASICs and ALTERA FPGAs. This paper describes the design and the commissioning of the 4 modules in 2008 and some preliminary results of the 2009 data taking.
Bolognini D.
Corradini Massimiliano
Leali M.
Lietti D.
Lodi Rizzini E.
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