Uni-Probe LB 490
BERTHOLD TECHNOLOGIES GmbH & Co. KG
2 – 161
Volume 2 2 Installation
2
2.5.1 Point Source Shielding LB744X
Figure 2-18 Radiation warning sign
Increased radiation dose due to open beam path!
A too high dose of radiation may be harmful to your health.
A source may be transported only in its shielding. The shielding
must be closed during transportation and installation.
The radiation exit is cone shaped with an angle of about 10°. Dur-
ing installation, the shielding and thus the useful beam must be
aligned such that they face the detector.
Figure 2-19 Point source shielding
The shielding consists of a lead cylinder with radiation exit channel
(7), surrounded by a steel jacket (Figure 2-20). The locking core
(6) is firmly connected with a lever (4). The positions OPEN and
CLOSED and the removal of the sources by unauthorized persons
are secured by a padlock (3).
The radiation warning sign identi-
fies the start of the controlled area,
provided the controlled area is out-
side the shielding. If the controlled
area is inside the shielding, then
the radiation warning sign
attached on the shielding suffices.
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