Density Meter LB 444 SECTION 2. SYSTEM DESCRIPTION
9
2.4.1.2 Shieldings for Installation in a Container
Shieldings with manually operated lock
The shielding consists of a lead-filled steel pipe, with a guide tube for the radio-
active source installed in the center. The radiation exit channel is located in an
angle of 90° or 45° to the longitudinal axis.
After taking off the covering cap which is secured by a lock you may open the
knurled screw and, using the stay bar, move the radioactive source forward
(OPEN) or back (CLOSED).
Locking
mechanism
Covering cap
Lead
Source position
CLOSED
Steel pipe
Protection pipe
Source position
OPEN
Radiation exit
channel
45°
90°
Figure 5: Shielding for installation in a container
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