Berthold LB 8901, Operating Manual

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LB 8901 Shield 5 Maintenance and Repair
64449BA2 Rev. 01, 10/2018
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Alternative test areas:
Alternative test areas are areas (Gray marked area in Fig. 6) of a shield which will
most likely be contaminated if a source is leaking.
Fig. 6 Alternative test area
5.4 Removing and installing the source
Before conducting extended maintenance work at the shield, you have to remove
the source. After the maintenance work is finished, you can reinstall the source.
This does require the direct handling of the unshielded source.
You must clarify with the responsible supervisory authority in advance whether
your license for handling radioactive substances comprises handling unshielded
sources.
In any case, the source may only be installed/removed by authorised persons. The
competent radiation safety officer is responsible for planning and monitoring the
work.
NOTICE
In order to keep the exposure to radiation during the removal / installation of
the source as low as possible, all persons involved should familiarise
themselves with the exact procedure in advance.
NOTICE
Only remove/install the source in areas with closed floors. Any apertures which
are larger than the external diameter of the source (14 mm) are to be covered
before commencing any work.