Bp. Barkov et al., COORDINATE CHARACTERISTICS OF A MODULAR GAMMA-DETECTOR WITH A 75-MM CELL, Instruments and experimental techniques, 37(3), 1994, pp. 297-300
A study of the coordinate resolution of a sampling gamma detector with
a 75-mm cell is presented. Using the energy distribution's center-of-
gravity method, the shower coordinate can be determined to within 2.0
mm. Measured shower profiles may be useful for rapid and accurate reco
nstructions of shower coordinates and multiple background events with
overlapping showers. The measurements are in reasonable agreement with
an EGS4 calculation. The e/pi rejection by the second moment of the s
hower profile is considered.