A silicon strip recoil detector for momentum measurement and tracking at HERMES

Author

Reinecke, M. ; Gregor, I.-M. ; Borissov, A. ; Hansen, K. ; Holler, Y. ; Hristova, I. ; Kaiser, R. ; Kopytin, M. ; Krauss, B. ; Lange, W. ; Lumsden, P. ; Nowak, W.-D. ; Pickert, N. ; Prahl, V. ; Rith, K. ; Rosner, G. ; Ryckbosch, D. ; Shearer, C. ; Stewart

Author_Institution

DESY, Hamburg, Germany

Volume

1

fYear

2003

fDate

19-25 Oct. 2003

Firstpage

561

Abstract

A recoil detector will he installed surrounding the internal gas target of the HERMES experiment at DESY. The recoil detector will improve the selection of exclusive events by a direct measurement of the momentum and track direction of the recoiling particle. The innermost layer of this recoil detector is a new silicon strip detector (SSD). Since Monte Carlo simulations predict proton momenta as low as 100 MeV/c, the SSD will be placed inside the HERA vacuum. A new setup of the electronics enables a dynamic range from below 4 fC at a signal-to-noise ratio of 6.8 up to 270 fC. In this report, the assembly of the first module and the final setup within the HERMES experiment will be presented. Results from charge-injection tests of a prototype module are shown.

Keywords

Compton effect; Monte Carlo methods; proton detection; silicon radiation detectors; HERA vacuum; HERMES; Monte Carlo simulations; Si; Si strip recoil detector; charge-injection tests; internal gas target; momentum measurement; proton momenta; tracking; Detectors; Dynamic range; Event detection; Particle measurements; Particle tracking; Protons; Signal to noise ratio; Silicon; Strips; Target tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2003 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8257-9

Type

conf

DOI

10.1109/NSSMIC.2003.1352105

Filename

1352105