Study and application of hole structures as gas gain devices for two dimensional high rate X-ray detectors

Recent developments in hole structures seem to be a promising enrichment for gas-filled photon counters. Up to now. only few investigations of the performance and limitations of these structures have been carried out. In this work a micro-hole structure is presented together with investigations focused on applications with position sensitive pressurized X-ray detectors for synchrotron radiation. In particular, position resolution, gas gain, rate capability, drift field influence and pressure behavior have been studied. In addition. first two dimensional X-ray images have been measured using a gas amplifying micro-hole structure in combination with a resistive position encoding structure. Since different types of hole structures were tested, predictions of structure geometries adapted for specific applications were carried out. (C) 1998 Elsevier Science B.V. All rights reserved.