Development of MicroStrip Gas Chamber as a new X-ray Imaging Area detector

Abstract

  The development of gaseous detectors has been excited again since the appearance of a MicroStrip Gas Chamber(MSGC) in 1988, which is made using a micro-electronics technology. We have developed the two-dimensional MSGC having a 10 cm square detection area and the ultra fast read-out system for a real-time X-ray imaging. The MSGC was made using Multi-Chip Module (MCM) technology, and has a very thin substrate of 17 μm, lots of thin anodes and back strips both with 200 μm pitches. This enable us to get fast digital X-ray images with recoding both a timing and an energy of each X-ray photon. In addition, an intermediate gas multiplier has been realized using a capillary plate having a conductive surface of a capillary. The MSGC combined with a conductive capillary has been operated steadily with a high gain under a high intensity. Here we also report a new approach of a X-ray crystal structure analysis using timing information obtained by the MSGC.