THGEM Detection System With Multichannel Readout And Application In X-ray And Cosmic-Ray Muon Hodoscope Region

With a wide field of research and application that covers many subjects of basic research and applied science, BSRF (Beijing synchrotron radiation facility) has an urgent demand for a new detector that has large sensitive area, good spatial resolution, firm assurance of radiation hardness and high counting rate. As a new generation of gas detector, THGEM (Thick Gas Electron Multiplier), while meeting the foregoing requirements, enjoys a broad dynamic range and has an enormous potential in synchrotron radiation detection.In cooperation with BSRF Diffuse X-ray Scattering experimental station (1W1A), a study of THGEM for synchrotron radiation diffraction experiment has been carried out. As X-ray machine and synchrotron radiation has a high luminous flux in a relatively long period of time, the THGEM detector is designed to acquire data in a current mode.This thesis begins with the development of two detection systems for the purpose of R&D, one with a single DC channel and the other with sixteen DC channels that are read out from matrix layout pads. The X-ray machine intensity distribution is measured and a2D imaging experiment is performed. According to the characteristics of diffraction experiment, a one-dimensional curved parallax-free X-ray diffraction detector system is designed. The performance of this new concept THGEM chamber is quite good under the high current mode (10Λ7photons/sec), with a dynamic range of5orders of magnitude and the angle resolution of0.07degrees.Moreover, a cosmic ray telescope system with THGEM is built for the purpose of demonstration and the function of cosmic ray hodoscope is realized.