Density Meter LB 444 SECTION 9. RADIATION PROTECTION
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9.3 Emergency Instructions
In case of fire or explosion, it must be assumed that the functions of the
shutter, the shielding efficiency or the integrity of the source capsule have
been impaired.
If you suspect such a severe malfunction, the Radiation Safety Officer has
to be notified immediately.
He/she will prevent further more exposure of per-
sons to radiation.
The Radiation Safety Officer has to make sure that the measuring system is no
longer in operation and then take appropriate steps. He/she may have to inform
the authorities or contact the manufacturer or supplier of the measuring system.
Emergency measures may be taken when a properly trained and licensed per-
son is available:
1. Locate the shielding. Cordon off a safe distance, label and prevent persons
entering the designated area.
2. Survey the area and shielding.
3. Check the function of the shielding. Wipe-test the shielding.
4. Secure the shielding. Document the event and estimate the possible radia-
tion level to which the persons involved were exposed.
If you suspect any damage to the source capsule, the following points must be
observed as well:
1. Avoid contamination.
2. Take hold of source using a tool (a pair of pliers or a pair of tweezers) and
put both (source and tool) into a plastic bag.
3. Secure them behind an auxiliary shielding (concrete wall, steel or lead plate).
4. Check if the environment is free of contamination.
5. Make sure the radioactive waste is secured and disposed off in compliance
with the pertinent regulatory requirements.
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