This is a reusable dosemeter which uses lithium fluoride to measure radiation dose. It stores dose information until heated to over 250°C when it gives out light the amount of which is proportional to the dose received. It is environmentally robust and excellent for use in all working environments.
This is a miniature TLD which can be supplied in different forms to suit your needs (stalls or rings). The finger stall is worn like the finger of a glove and the ring is adjustable to fit all finger sizes.
For measuring doses to the lens of the eye we can provide a headband, which directly measures the required quantity for both photon (x- and gamma ray) and beta radiations; or a whole body TLD, to be worn on the collar, when exposed to photons only.
Here, poly-allyl diglycol carbonate (PADC) is used which is damaged if exposed to neutrons. After processing, damage pits become visible and their number is proportional to the dose received. It is unaffected by X and gamma radiations and measures doses over a wide range of neutron energies.
PADC is enclosed in a domed holder which allows radon gas to enter but excludes dirt, moisture and radon decay products. The number of tracks is proportional to the radon gas exposure. Supplementary information must be provided by the employer.
PHE also offers a dose record keeping service.
For further information regarding any of the services above, please contact us.