Application of the time-dependent charge asymmetry method for longitudinal position determination in prototype proportional chambers for the PANDA experiment

Sokolov, A.; Ritman, J.; Wintz, P.

doi:10.1016/j.nima.2007.01.104

Journal Article

Application of the time-dependent charge asymmetry method for longitudinal position determination in prototype proportional chambers for the PANDA experiment

Sokolov, A.FZJ* ; Ritman, J.FZJ* ; Wintz, P.FZJ*

2007
North-Holland Publ. Co. Amsterdam

Nuclear instruments & methods in physics research / A 574, 50 - 56 (2007) [10.1016/j.nima.2007.01.104]

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Please use a persistent id in citations: http://hdl.handle.net/2128/10531 doi:10.1016/j.nima.2007.01.104

Abstract: The PANDA collaboration intends to build a state-of-the-art detector to study the physics of antiproton annihilation in the charm mass region at the future FAIR facility at GSI, Darmstadt. One major part of the PANDA detector is the Straw Tube Tracker. It will consist of about 6000 individual straws grouped in 11 double layers and filled with an Ar + 10% CO2 gas mixture. The required radial spatial resolution is about 150 mu m. Two different methods are considered for longitudinal coordinate measurements-skewed double layers and a novel method based on the time-dependent charge asymmetry. The latter method is presented in this article. (c) 2007 Elsevier B.V. All rights reserved.

Keyword(s): anti-p p: annihilation ; magnetic spectrometer: proposed ; proportional chamber: drift tube ; gas: admixture ; spatial resolution ; charge: asymmetry ; time dependence ; performance ; Darmstadt Lab ; PANDA (auto) ; FAIR (auto) ; straw tube (auto) ; charge division (auto)