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Title Efficiency Measurements on the CEBAF Hall A VDCs
Authors Craig Leathers
JLAB number CEBAF-PR-96-27
LANL number (None)
Other number DOE/ER/40150-4534
Document Type(s) (Thesis) 
Supported by U.S. Naval Research: No
Supported by Jefferson Lab LDRD Funding: No
  Thesis
A Masters thesis
Advisor(s) :
   William Bertozzi (MIT)
Publication Abstract: The nuclear interactions group at MIT has been constructing vertical drift chambers (VDCs) for hall A of the Continuous Electron Beam Accelerator Facility (CEBAF) in Newport News, Virginia.The VDCs are used to detect the position at which a particle crosses it with very high accuracy.The chambers consist of two sets of parallel anode wires surrounded by an ionizable gas and two cathode planes. Efficiency measurements were taken with a 62% argon, 38% ethane gas mixture.Generally, an effiency plateau of 99% was reached when the threshold voltage on the cards was set above the noise.
Experiment Numbers: other
Group: Hall A
Document: pdf
DOI:
Accepted Manuscript:
Supporting Documents:
Supporting Datasets: