Calibration of phoswich detectors

Two important aspects for the calibration of phoswich detector arrays have been investigated. It is shown that common gate ADCs can be used: The loss in particle identification due to fluctuations in the gate timing in multi-hit events can be corrected for by a simple procedure using the measured time difference between gate and phoswich signal. The response of phoswich detectors to particles with given Z, A and E was studied using a magnetic spectrograph. In the absence of mass identification the energy calibration is limited by the width of the experimental mass distribution for a given element. (orig.)