Performance of a large scale scintillating fiber tracker using VLPC readout

Technical Report · Thu Sep 01 04:00:00 EDT 1994

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., 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
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303
440104
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COSMIC RADIATION
DATA ACQUISITION SYSTEMS
EXPERIMENTAL DATA
EXPERIMENTAL FACILITIES AND EQUIPMENT
FERMILAB TEVATRON
HIGH ENERGY PHYSICS INSTRUMENTATION
PARTICLE TRACKS
PERFORMANCE TESTING
READOUT SYSTEMS
SOLID SCINTILLATION DETECTORS
TRIGGER CIRCUITS