NNRA ACQUIRES MOBILE RADIOLOGICAL EMERGENCY LABORATORY

By:
Date: 2010

The Nigerian Nuclear Regulatory Authority, NNRA, has acquired a Mobile Vehicle-Based Emergency Radiological Laboratory System. The laboratory, also known as Mobile Vehicle-Based Emergency Radiation System, MOVERS, will enable the NNRA to carry out a timely radiological emergency response in Nigeria and fulfil its statutory functions under Sections 4 (1a) and 27 of the Nuclear Safety and Radiation Protection Act in ensuring protection of life, health, property and the environment from the harmful effects of ionizing radiation.

The significance of acquiring the laboratory is that the NNRA can now take its radiological emergency response to far, rugged and remote corners because the system is mobile and can get to difficult terrains. This is an advantage over equipment that can do similar work but are fixed and immobile.

The laboratory is fitted with highly sensitive gamma and neutron detectors which are “smart” probes and can pick alpha, beta, neutron and gamma radiation and grade the intensity of radiation, even at very low levels. There is also an intelligent Alpha/Beta Continuous Air Monitor (iCAM) which detects and sets off an alarm when hazardous levels of alpha and beta particulates are detected.

It is also fitted with GPS and computer-based systems to enable the NNRA plot a site map of contaminated areas.

 

LABORATORY VEHICLE AND EQUIPMENT

The laboratory also has a full meteorological system with Global Positioning System (GPS) capable of monitoring meteorological conditions like temperature, humidity, wind speed, direction, and rain gauge. The GPS is a self-contained receiver with eight channels to track up to eight satellites and is capable of detector differential accuracy better than 10 metres and velocity accuracy of 1 cm/sec (one centimetre per second).

A Radiological Assessment Display and Control System, RADACS, can store data and alarm conditions from all monitors. Using the GPS module and radiation monitors, it can plot a site map showing contaminated areas in real time. A Rate Meter with visual and audio alarms, interprets and displays count rate data from the detectors.

The laboratory system also has a Radiagem Survey Meter with Gamma, Alpha/Beta probes, Contamination Monitor, and Dose Meter.

 

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