학술논문
The straw tube trackers of the PANDA experiment
Document Type
Conference
Author
Gianotti, P.; Lucherini, V.; Pace, E.; Boca, G. L.; Costanza, S.; Genova, P.; Lavezzi, L.; Montanga, P.; Rotondi, A.; Bragadireanu, M.; Vasile, M. E.; Pietreanu, D.; Biernat, J.; Jowzaee, S.; Korcyl, G.; Palka, M.; Salabura, P.; Smyrski, J.; Fiutowski, T.; Idzik, M.; Przyborowski, D.; Korcyl, K.; Kulessa, P.; Pysz, K.; Dobbs, S.; Tomaradze, A.; Bettoni, D.; Fioravanti, E.; Garzia, I.; Savrie, M.; Kozlov, V.; Mertens, M.; Ohm, H.; Orfanitski, S.; Ritman, J.; Serdyuk, V.; Wintz, P.; Spataro, S.
Source
2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA) Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2013 3rd International Conference on. :1-7 Jun, 2013
Subject
Language
Abstract
The P̄ANDA experiment will be built at the FAIR facility at Darmstadt (Germany) to perform accurate tests of the strong interaction through p̄p and p̄A annihilation's studies. To track charged particles, two systems consisting of a set of planar, closed-packed, self-supporting straw tube layers are under construction. The P̄ANDA straw tubes will have also unique characteristics in term of material budget and performance. They consist of very thin mylar-aluminized cathodes which are made self-supporting by means of the operation gas-mixture over-pressure. This solution allows to reduce at maximum the weight of the mechanical support frame and hence the detector material budget. The P̄ANDA straw tube central tracker will not only reconstruct charged particle trajectories, but also will help in low momentum (< 1 GeV) particle identification via dE/dx measurements. This is a quite new approach that P̄ANDA tracking group has first tested with detailed Monte Carlo simulations, and then with experimental tests of detector prototypes. This paper addresses the design issues of the P̄ANDA straw tube trackers and the performance obtained in prototype tests.