Title :
A transition radiation detector which features accurate tracking and dE/dx particle identification
Author :
O´Brien, Edward ; Bennett, M. ; Cherniatin, V. ; Chi, C.Y. ; Chikanian, A. ; Dolgoshein, B. ; Kumar, S. ; Lissauer, D. ; McCorkle, S. ; Mitchell, J.T. ; Nagamiya, S. ; Polychronakos, V. ; Pope, K. ; Sippach, W. ; Takai, H. ; Toy, M. ; Wang, D. ; Wang, Y.F
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
The results of a test run involving a transition radiation detector (TRD) that can distinguish electrons from pions with momenta greater than 0.7 GeV/c and simultaneously track particles passing through the detector are described. The particle identification is accomplished by a combination of the detection of transition radiation from the electron and the difference in electron and pion energy (dE/dx) in the detector. The dE/dx particle separation is most efficient below 2 GeV/c, while particle identification utilizing transition radiation is effective above 1.5 GeV/c. Combined, the electron-pion separation is better than 5×102. The single-wire, track-position resolution for the TRD is ~230 μm
Keywords :
electron detection and measurement; meson detection and measurement; position sensitive particle detectors; proportional counters; 230 micron; dE/dx particle identification; dE/dx particle separation; electron pion discrimination; electron-pion separation; position resolution; tracking; transition radiation detector; Cathodes; Computer vision; Electrons; Laboratories; Mesons; Particle tracking; Prototypes; Radiation detectors; Testing; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
