In the case of people whose work requires assessment of equivalent dose in hands, they can use ring dosimeters calibrated at equivalent personal superficial HP(0.07) dose.

  • Ring configuration is sent to the user in a transparent minigrip bag labelled with user, dosimeter, work centre, dosimeter month use data.
  • The dosimeter holder is labelled with user data and a matrix code.
  • They are black for even months and orange for odd months.

Basic rules of use:

  • The dosimeter is personal and non-transferable.
  • It must be worn throughout the working day and not be taken outside the work centre.
  • It must be placed under any protection used, e.g. lead gloves; and on the hand most exposed to radiation depending on work type and procedures.

The same user may wear more than one ring dosimeter, placing one on each hand. In this case, the right hand dosimeter is identified via an additional yellow sticker.

This kind of dosimeter is particularly appropriate for Nuclear Medicine and Radiopharmacy.