There’s a heightened awareness of the the need to address public protection from various radiation treats. One tool that’s being used to detect radioactive materials being used in nefarious ways is the backpack-type radiation detector (BRD). Like other radiation detecting equipment, these devices need to meet operational and performance requirements. So the new IEC 62694, “Radiation protection instrumentation – Backpack-type radiation detector (BRD) for the detection of illicit trafficking of radioactive material,” was specifically written for this purpose.
IEC 62694 sets both performance and testing requirements for this equipment. These cover radiation measurements to be taken, as well as the expected electrical, mechanical, and environmental conditions during usage. The document is lengthy, comprised of 128 pages with the text in both English and French.
First you’ll find a section on general test procedures. Then there’s the following general requirements:
- Design requirements
- Effective range of measurement (Energy)
- Effective range of measurement (Count rate)
- Operating parameters
- Explosive atmospheres
- Power supply
- Data format
- Data storage
- Communication interface
- User interface
An equally exhaustive section on radiation detection requirements is then presented. Shorter reviews of environmental requirements, mechanical requirements, electromagnetic requirements, and documentation are also included.
There are 4 informative Annexes in this standard. They cover statistical considerations, expected progeny and impurities, fluence rate calculations, and calculation ambient dose equivalent rate. The bibliography has 28 references for further review.
If you’re interested in this topic, you’ll also want to review my blog.document-center.com review of the New Standards on Radiation Protection for the 1st Quarter 2014. I use the Document Center blog to highlight new releases on various topics of interest.
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