Design And Implementation Of The X-ray Detector System

X-rays together with radiation and electron which was the three discoveries in the early 20 th century was the sign of the birth of modern physics. Since X-rays had been discovered by Professor Roentgen, the director of Physics Institute, University of Wurzburg, Germany, physicists began to explore it in depth research actively. X-rays have penetration, ionization, fluorescence and thermal together with physical effects interference, diffraction, reflection, refraction, etc. which are constantly developed and applied to health care, public security, industrial production and other areas. However, prospect of X-rays is much more than that. In order to let the performance be maximized, mankind continues to explore and develop the new fields of applications of X-rays.This paper presents the X-ray detector system design which has fast response time, wide X energy measurement range as well as remote opening and closing functions. The scheme is designed on the base of the X-ray detection requirements proposed by research units and the experimental environment of the research units. The specific requirements are able to detect a minimum pulse width of 10 ns, the energy in the tens to hundreds of KeV and X-ray of about 50 ns pulse interval, while can achieve about 80 meters remotely open and close control. To achieve these detection requirements, through the performance of various types of detection methods of analysis, the paper determines the research direction based on scintillation detection method. In the system power remote control program is designed by LabVIEW software which is developed by National Instruments. X-ray detector structure adopts Dassault Systemes which is designed by computer-aided drawing software SOLIDWORKS produced by SA company.X-ray detector system mainly consists of plastic scintillator, photomultiplier tubes, high voltage divider and wide bandwidth preamplifier etc. Shell adopts design structure of replaceable the scintillator to facilitate to replace scintillator for other rays measurement. Above structural design ensures the detector’s such performance as fast response, wide bandwidth and high dynamic range etc. The relevant experiments of X-ray detector system show that the response time of the detector under the high voltage 2500 V can reach 10 ns, and the detector enables remote switching control within 100 meters.