The N2024-220 Decommissioning Piece Monitor is a transportable efficient neutron assay instrument for the monitoring of intermediate level Plutonium Contaminated Material (PCM) waste arising from decommissioning operations. Waste is loaded into a 200 litre drum fitted with a containment barrier. The monitor surrounds the drum and measures its PCM content.
The monitor is modular in construction and utilises standard proven ANTECH hardware and software. It consists of four neutron detector panels, each of which is fitted with six neutron detectors and a single amplifier is mounted on a trolley. The front panel of the monitor also functions as a door to enable drums to be loaded and removed. The four amplifier TTL outputs are input into an N2000 Universal Neutron Counter that functions as a neutron counter, analyser and source of high voltage and low voltage DC supply. The N2000 is operated under computer control (from a host computer) and can be remote from the monitor. The system can be operated with other neutron counting electronics.