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HK: Hadronen und Kerne
HK 60: Instrumentation VI, Detector Systems
HK 60.2: Vortrag
Donnerstag, 19. März 1998, 14:30–14:45, A
Performance of the Barrel-Detector for the COSY-TOF-Spectrometer † — •A. Böhm1, K.-Th. Brinkmann1, S. Dshemuchadse2, J. S. Lange1, H. Freiesleben1, P. Herrmann3, B. Hübner1, E. Kuhlmann1, P. Michel2, K. Möller2, A. Schamlott2, P. Schönmeier1, A. Schülke2, M. Steinke3, G. Y. Sun1, M. Würschig-Pörsel1, and U. Zielinski3 — 1TU Dresden, Inst. für Kern- und Teilchenphysik, D-01062 Dresden — 2FZ Rossendorf, Inst. für Kern-und Hadronenphysik, D-01314 Dresden — 3Ruhr-Universität Bochum, Inst. für Experimentalphysik I, D-44780 Bochum
In 1997 the first barrel detector for the COSY-TOF spectrometer was
completed.
The “Barrel” consists of 3 m long scintillator bars which are read out
from both ends. With the implementation of this detector part in addition to
the endcap, scattering angles up to 80∘ become accessible with flight
paths up to 3 m.
The detector was tested with cosmic rays and was already
used in a pp-experiment at COSY running at beam momenta around 800 MeV/c
close to the 1π-threshold.
Prototype tests showed position resolutions of 8 cm (FWHM) and time resolutions
of 0.7 ns (FWHM). They are typical for the full set up for which results of
performance studies using experimental data will be presented.
† supported by BMBF and FZ Jülich