THE SIMULTANEOUS MEASURING METHOD AND EQUIPMENT OF NEUTRON AND GAMMA-RAY DOSAGE USING ONE PIN DIODE

摘要

PURPOSE: A device for measuring neutron and gamma ray using single sensor is provided to enhance the reliability of signal detection by decreasing measuring error by glitch signals by arranging a digital filtering unit on a digital signal processing unit. CONSTITUTION: A device for measuring neutron and gamma ray using single sensor comprises a PIN diode sensor(1), a current pulse detecting unit(2), a static current output unit(3), a signal processing unit(4), and a control unit(5). The PIN diode is used for measure radiation. The current pulse detecting unit detects pulse-type current due to ionization proportional to the energy of gamma rays using single PIN diode sensor. The static current output unit senses the voltage across the diode increasing due to current limit effect by the damage to a grating structure when forward static current is applied as the PIN diode sensor reacts with neutron.