Ring imaging Cherenkov detector prototype results for E665 at Fermilab
A proportional wire chamber (PWC) with cathode pad readout has been used to measure the position of Cherenkov photons produced by the passage of a 100 GeV muon beam in a five meter long radiator at Fermilab. The authors observe, on average, 6.2 photo-electrons per muon using Tetrakis (Dimethyl Amino) Ethylene (TMAE) as the photo ionizing vapor for detecting Cherenkov photons and 3.5 photo-electrons using triethylamine (TEA). The observed radius resolution was 3mm FWHM for the TEA data and 5mm FWHM for the TMAE data. In both cases a CaF/sub 2/ window transmitted the Cherenkov light from the radiator into the photon detector. The radiator gas was 20% argon and 80% helium producing Cherenkov rings with an average radius of 70mm. The detector described here offers the advantage of good timing resolution, (less than 100 nsec when using TEA), and high multi photon and multi ring reconstruction capability.
- Research Organization:
- Fermi National Accelerator Lab., P.O. Box 500, Batavia, IL 60510
- OSTI ID:
- 5810562
- Report Number(s):
- CONF-851009-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. NS-33:1; Conference: IEEE nuclear science symposium, San Francisco, CA, USA, 23 Oct 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHERENKOV COUNTERS
PERFORMANCE TESTING
AMINES
ARGON
CALCIUM FLUORIDES
CATHODES
ELECTRONS
EXPERIMENTAL DATA
FERMILAB ACCELERATOR
GEV RANGE 100-1000
HELIUM
MULTIWIRE PROPORTIONAL CHAMBERS
MUON BEAMS
PHOTONS
READOUT SYSTEMS
TIME RESOLUTION
ACCELERATORS
ALKALINE EARTH METAL COMPOUNDS
BEAMS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CYCLIC ACCELERATORS
DATA
ELECTRODES
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
GEV RANGE
HALIDES
HALOGEN COMPOUNDS
INFORMATION
LEPTON BEAMS
LEPTONS
MASSLESS PARTICLES
MEASURING INSTRUMENTS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLE BEAMS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RARE GASES
RESOLUTION
SYNCHROTRONS
TESTING
TIMING PROPERTIES
440104* - Radiation Instrumentation- High Energy Physics Instrumentation