  We present the results of the operation of an array of avalanche photodiodes
(APDs) for the readout of an electroluminescence detector. The detector
contains 24 APDs with a pitch of 15 mm between them allowing energy and
position measurements simultaneously. Measurements were performed in xenon (3.8
bar) and argon (4.8 bar) showing a good energy resolution of 5.3% FWHM at 60
keV in xenon and 9.4% in argon respectively. Following Monte Carlo studies the
performance could be improved significantly by reducing the pitch between the
sensors.
