A transition radiation detector which features accurate tracking and dE/dx particle identification

Conference · Mon Dec 31 23:00:00 EST 1990

OSTI ID:6920763

O'Brien, E; Lissauer, D; McCorkle, S; Polychronakos, V; Takai, H ^[1]; Chi, C Y; Nagamiya, S; Sippach, W; Toy, M; Wang, D; Wang, Y F; Wiggins, C; Willis, W ^[2]; Cherniatin, V; Dolgoshein, B ^[3]; Bennett, M; Chikanian, A; Kumar, S; Mitchell,

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1. Brookhaven National Lab., Upton, NY (United States)
2. Columbia Univ., New York, NY (United States)
3. Moscow Inst. of Physics and Engineering, Moscow (Russia Federation)

We describe the results of a test run involving a Transition Radiation Detector that can both distinguish electrons from pions with momenta greater than 0.7 GeV/c and simultaneously track particles passing through the detector. The particle identification is accomplished through a combination of the detection of Transition Radiation from the electron and the differences in electron and pion energy loss (dE/dx) in the detector. The dE/dx particle separation is most efficient below 2 GeV/c while particle ID utilizing Transition Radiation is effective above 1.5 GeV/c. Combined, the electron-pion separation is better than 5 [times] l0[sup 2]. The single-wire, track-position resolution for the TRD is [approximately]230[mu]m.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6920763
• Report Number(s): BNL-48201; CONF-911106--100; ON: DE93006391
• Country of Publication: United States
• Language: English

Related Subjects

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
BOSONS
BROOKHAVEN RHIC
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY LOSSES
FERMIONS
HADRONS
HEAVY ION ACCELERATORS
LEPTONS
LOSSES
MEASURING INSTRUMENTS
MESONS
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PIONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
RADIATIONS
STORAGE RINGS
TRANSITION RADIATION