MULTI-PARAMETER DETECTION SYSTEM AND METHOD FOR INTRA-DRILL-HOLE NUCLEAR FACILITY DECOMMISSIONING WASTE RADIOACTIVITY

摘要

Provided are a multi-parameter detection system and method for intra-drill-hole nuclear facility decommissioning waste radioactivity, relating to the field of source term surveys in the process of nuclear facility decommissioning. The system comprises a computer (1), a front-end machine, an array detection unit and a connection unit (5). The array detection unit comprises a position-sensitive scintillator detector unit (2), an independent semiconductor detection array unit (3) and a semiconductor detector and position-sensitive detector hybrid detection unit (4), wherein the position-sensitive scintillator detector unit (2), the independent semiconductor detection array unit (3) and the semiconductor detector and position-sensitive detector hybrid detection unit (4) all comprise a communication collection module, and the communication collection module is used for signal pre-amplification, formation, collection, and communication with the front-end machine; the position-sensitive scintillator detector unit (2) further comprises a position-sensitive scintillator detector; the independent semiconductor detection array unit (3) further comprises a semiconductor detector array; and the semiconductor detector and position-sensitive detector hybrid detection unit (4) further comprises a position-sensitive scintillator detector and a semiconductor detector.