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This section contains details of sealed sources for calibrating
surface contamination monitors. A wide range of products with
different dimensions and radionuclides is available. Also
shown are sources designed for specific instruments and applications:
calibration standards for Harwell Instrument monitors; photon
emitting standards; tritium standards; standards for hand,
foot, and whole body monitors. Sources with dimensions and
radionuclides other than those shown may also be available.
Please use the form in this section for your requests.
Applications:
One of the fundamental principles of radiation protection
is that the dose to workers must be as low as reasonably practicable.
In many laboratories the main risk is from ingestion or inhalation
of the radionuclides. It is normal practice to monitor the
workplace for surface contamination regularly and, in some
cases, to check for airborne radioactive particles. AEA Technology
QSA’s range of wide area reference sources is designed
for calibrating portable surface contamination monitors, fixed
hand/foot monitors and planchet counters for filter papers.
The main applications are:
- Calibrating instruments to meet statutory requirements
- Instrument type testing
- Pre-use testing of instruments to prove fitness for purpose
Sources are normally constructed from anodized aluminium
foils. This type of construction results in:
- Robust, durable, sealed sources
- A thin deposit of activity to comply with international
standards
(ISO8769, ISO7503): the energy distribution of particles is
not distorted by the source construction, which means that
instrument response is easy to interpret.
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