2 Safety manual
Rod source shields LB 8300
14
64217BA2 Rev. 00, 10/2017
2.4.2
Exposure of employees to radiation
During installation, maintenance and decommissioning of the shield, employees
may be exposed to radiation.
In order to keep such exposure as low as possible, the shield with the source may
only be mounted and/or dismounted by authorized employees. Such authorised
staff is to be instructed as regards all rules of behaviour when handling
radioactive substances in advance.
It is to be ensured that the locking mechanism of the shield is closed and secured
in order to prevent the emission of unshielded radiation. Modification or damage
to the shield must be avoided at all times.
Work may only be executed according to the instructions and under the
supervision of the radiation safety officer, who furthermore has to calculate or
estimate the exposure of the employees to radiation in order to ensure that the
statutory dose rate limits are not exceeded.
2.4.3
Theft protection
Radioactive substances or equipment containing radioactive substances must be
secured in a way that they are protected against access by unauthorized persons.
In the case of firmly installed equipment containing radioactive substances, the
protection against unauthorized access is generally provided by the firmly
attached installation.
Shields with radioactive sources which are decommissioned for a certain period of
time must be dismounted and securely stored in a storage room complying with
the national regulations as regards the storage of radioactive substances.
Portable measuring systems must never be left unsupervised. When this
equipment is out of use, it is to be protected against access by unauthorised
persons.
2.4.4
In the case of fire
The shield material can melt and leak from the shield if exposed to very high
temperatures for an extended period of time. During and after a fire, there is a
risk of major long-time consequences for your health due to the incorporation of
lead as well as a risk of increased radiation exposure.
When planning the use of radiometric measuring systems, constructional
measures ensuring fire prevention are to be provided.
In the case of fire, these measures limit the access to this area.
Avoid the incorporation by keeping sufficient distance.
Notify BERTHOLD TECHNOLOGIES of the situation; you will promptly receive
information on immediate measures.
