Type testing of the SDM2000 personal dosimeter

The results of the performance of a new type of personal dosimeter, the SDM2000 Personal Dosimeter made by China Institute for Radiation Protection is presented. Tests were performed on radiological performance including radiation energy, incidence angular, beta radiation, neutron radiation, accuracy of alarm levels, relative intrinsic error, overload, response time, linearity, retention of reading. There are also tests on the effects of a variety of environmental factors, such as temperature, humidity, external magnetic fields, electrostatic discharge, external electromagnetic fields. Other characteristics tested were dropping test, vibration test and battery life. The test results were compared with the relevant requirements of three standards: CIRP standard: Q/DSC1-92, National standard: GB/T 13161-91, IEC standard: IEC1283. In general, the performance of the SDM2000 personal dosimeter was found to be quite acceptable; it meets most of the relevant requirements of the three standards