The RadScan® 800 4pi Gamma Imager remotely locates and
characterises gamma hotspots in a wide variety of environments
including building surfaces, cells, in or on gloveboxes and process
vessels. There has been a dramatic increase in the use of gamma
imaging technology over the last ten years, particularly within
maintenance, decommissioning and refurbishment operations. The
technique is often used to complement Health Physics dose rate
surveys, being capable of identifying the origins of high dose
rates with minimised dose uptake to personnel. In recent years many
new ways have emerged in which the data from RadScan® can be
used.
The conventional output of a RadScan® survey is a 2D image
showing the distribution of activity as a coloured overlay on a
video image, as shown in the example on the next page. The image
clearly shows where on this facility the radioactive contamination
is to be found. With this information, strategies can be assessed;
plans developed and optimised; and as a result savings can be
made.
Benefits:
- Gamma imaging services by experienced and highly qualified
Babcock operatives.
- No capital outlay of equipment - just pay for the bespoke.
- Service required.
- No need to purchase any hardware.
- RadScan® can be hired by the day to minimise costs.
- Data analysed and presented as required.
- Saves operator dose.
- Saves cost by optimising strategy.
The process:
- A plant visit to understand exact requirements.
- Assessment made of scanning and analysis requirements.
- A scope of work is produced.
- Issues such as access, deployment, safety and power
requirements are addressed before any work starts.
- A fully tested and calibrated RadScan® unit is used.A Babcock
team deploy the RadScan® unit and carry out all of the imaging
work.
- The experience of the operators ensure that the best results
are collected. The focus of a survey can change once initial
results are seen.
- Images from the scanning can be viewed as the work is in
progress.
- The results are analysed to meet exact needs.
- A report is produced that details all of the collected
results.