Analytical Instrumentation & Environmental Monitoring

Radiation meters for recycling and scrap markets

December 2014 Analytical Instrumentation & Environmental Monitoring

The RadEye PRD is the next generation of advanced radiation meters. Thermo Scientific’s newest personnel radiation detector (PRD) was developed in response to a growing need for smaller, more compact detectors which have even more sensitivity to unwelcome radioactive sources. The RadEye PRD is a high performance measuring device for use in conjunction with a vehicle monitoring system, for persons who are responsible for detecting and localising radiation sources, such as scale operators, scrap inspectors or quality control personnel.

Radioactive sources can find their way into scrap and recycling yards through both naturally occurring radioactive sources such as scale on pipes in the oil and gas industry and through orphaned industrial sources. Turning away a load could jeopardise a supplier relationship that has been built through extensive effort. Facilities in this situation have an interest not only in protecting their personnel, but also in protecting their own facility as well as their business relationships. The subsequent passing on and melting of an orphaned source can result in millions of rands in lost revenue and cleanup expenses.

The RadEye PRD is a low cost, convenient tool for helping to detect and locate orphaned sources or problematic naturally occurring radioactive material (NORM) related sources. For example, if a small or well-shielded radiation source is deeply embedded in the scrap load it may pass through a vehicle monitoring system undetected. However, when the surrounding scrap is removed during the unloading process, the small RadEye unit, worn by key personnel, offers an efficient second line of defence. The RadEye PRD is able to see a potential threat that has entered the facility, and because it is conveniently worn or mounted, personnel will not need to take time or effort away from other duties to get a cumbersome and heavy instrument to scan a load. With the RadEye worn on a belt holster, personnel are always in a position to locate an unwanted radioactive source.

The RadEye weighs a few hundred grams, and is about the size of a pager. The unit is so lightweight and unobtrusive that it can be worn by anyone in the yard. The characteristic features of this versatile pocket meter are the use of sophisticated low power technology components and fully automatic self-checks which result in minimum maintenance. It is the only instrument of this size which is able to compensate for the variations of the natural background that are present in most locations. Thus full sensitivity is combined with the virtual absence of any false alarms.

The RadEye PRD incorporates Thermo’s Natural Background Rejection (NBR) technology. NBR results in enhanced sensitivity with fewer false alarms. It also gives an indication of whether the source is high energy, low energy, or likely to be NORM. Optional dedicated Windows-based GateCheck software and an accompanying reader device are available for downloading scan readings for printing on a radiation certificate, which can then be sent together with the scanned load to the destination.

The RadEye PRD offers scrap yards and recycling facilities a cost effective solution to the threat of radioactive contamination. With its low cost of ownership, durability and portability, it is the next generation of portable instrument solutions with specific application in the steel recycling industry.

For more information contact Mauritz van Niekerk, OEN Enterprises, +27 (0)11 675 4447,,


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Two-gas detection monitor
July 2021, Comtest , Analytical Instrumentation & Environmental Monitoring
New lightweight two-gas monitor offers more accurate alarms and minimises maintenance with a two-year runtime.

MAP – making the right choice for gas analysis
August 2021, Elemental Analytics , Analytical Instrumentation & Environmental Monitoring
Modified atmosphere packaging (MAP) is used within the food and pharmaceutical sectors to extend the shelf life of many products that would otherwise deteriorate quickly in the presence of oxygen.

Accurate particle matter measurement
June 2021, GHM Messtechnik SA , Analytical Instrumentation & Environmental Monitoring
The PMsense datalogger has particular applications in smart city applications and the monitoring of particle matter pollutants found at industrial sites.

24/7 boiler monitoring with the SWAS Compact
June 2021, Endress+Hauser South Africa , Analytical Instrumentation & Environmental Monitoring
Endress+Hauser has developed a compact new steam analysis device for continuous boiler water monitoring.

Flexibility for disinfection measuring points
April 2021, Endress+Hauser South Africa , Analytical Instrumentation & Environmental Monitoring
Endress+Hauser’s new modular Flowfit CYA27 flow assembly enables measurement of up to six parameters in process and drinking water.

Alkylation processes in petroleum refineries
April 2021, Morton Controls , Analytical Instrumentation & Environmental Monitoring
The SensoTech LiquiSonic is an inline analytical system for determining the concentration of binary liquids directly in the production process.

A safe and easy way to check water quality
March 2021, Endress+Hauser South Africa , Analytical Instrumentation & Environmental Monitoring
Ready-to-use water analysis panels from Endress+Hauser ensure water monitoring with minimum effort and maximum reliability.

ABB urges adoption of high-efficiency motors to combat climate change
April 2021, ABB South Africa , Analytical Instrumentation & Environmental Monitoring, Electrical Power & Protection
Global electricity consumption could be reduced by 10%.

Loop-powered watercut meter
May 2021, SECO Process Instrumentation , Analytical Instrumentation & Environmental Monitoring
The Easz-1 oil/water monitor is a highly accurate online analyser that is installed in a pipe and can be used as a BS&W (basic sediment and water) monitor, or a watercut meter.

Optimising DeNOx plants with the in-situ gas analyser
February 2021, SICK Automation Southern Africa , Analytical Instrumentation & Environmental Monitoring
SICK Automation’s innovative new GM32 in-situ gas analyser helps reduce emissions in DeNOx plants.