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Title: Performance of a large scale scintillating fiber tracker using VLPC readout

Technical Report ·
DOI:https://doi.org/10.2172/10103891· OSTI ID:10103891

The authors report on results of a cosmic-ray test of a 3,072 channel scintillating fiber tracker using VLPC readout. This system is a prototype for the D0 detector tracking upgrade, and represents a configuration that is similar to that planned for the final detector. A detailed description of the cosmic ray test, including trigger, fiber configuration, lightguides, VLPC cassettes and cryogenics, calibration system, and DAQ is given. Tracking results with a muon momentum cutoff of 2.5 GeV/c include R-{phi} and R-Z resolution studies, light yield/mip, and efficiency measurements. Preliminary analysis gives a most probable value of 19.2 photoelectrons/mip per fiber doublet, an R-{phi} resolution of 163 microns (before corrections for fiber position survey), and an efficiency of nearly 100% after accounting for known dead channels in the system.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC02-76CH03000
OSTI ID:
10103891
Report Number(s):
FNAL/C-94/312; CONF-940816-64; ON: DE95003746; TRN: AHC29502%%132
Resource Relation:
Conference: 8. meeting Division of Particles and Fields of the American Physical Society,Albuquerque, NM (United States),2-6 Aug 1994; Other Information: PBD: Sep 1994
Country of Publication:
United States
Language:
English