Title :
Performance of a large scale scintillating fiber tracker using VLPC readout
Author :
Baumbaugh, B. ; Bertram, I. ; Bross, A. ; Choi, S. ; Chung, M. ; Grünendahl, S. ; Kang, J.S. ; Kim, C.L. ; Kim, S.K. ; Koltick, D. ; Lobkowicz, F. ; Margulies, S. ; Park, Y. ; Pischalnikov, Y. ; Ruchti, R. ; Solomon, J. ; Warchol, J. ; Wayne, M. ; Yui, Y.
Author_Institution :
Notre Dame Univ., IN, USA
fDate :
6/1/1996 12:00:00 AM
Abstract :
We report on results of a cosmic ray test of a scintillating fiber tracker using Visible Light Photon Counter (VLPC) readout. Two different detector configurations have been constructed and operated, the first with a total of 3072 channels and the second with 1,785 channels. The 3072 channel system is a prototype for the DØ detector tracking upgrade and represents a configuration that is similar to that in the final detector. The second, smaller test was specifically designed to study the position resolution capabilities of the fiber tracker. A description of the cosmic ray test including trigger, fiber configuration, undoped lightguides, VLPC cassettes and cryogenics, and calibration system is given. Final results from the 3072 channel test will be presented, including measurements of resolution, light yield per minimum ionizing particle, singlet and doublet efficiency, and long-term stability. Resolution results from the second, 1785 channel test will be compared to the predicted resolution from Monte Carlo studies
Keywords :
detector circuits; nuclear electronics; position sensitive particle detectors; solid scintillation detectors; Monte Carlo studies; VLPC cassettes; VLPC readout; Visible Light Photon Counter readout; calibration system; cosmic ray test; cryogenics; doublet efficiency; fiber tracker; large scale scintillating fiber tracker; long-term stability; position resolution capabilities; singlet efficiency; undoped lightguides; Calibration; Cryogenics; Large-scale systems; Monte Carlo methods; Optical fiber testing; Particle measurements; Prototypes; Radiation detectors; Stability; System testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
