Source container FQG61, FQG62
Hauser
49
2.
L
WARNING
Risk of injury
‣
Do not reach into the indicator window area of the indicator plate
Using compressed air, switch the source insert from the "OFF" position to the "ON" position. The
source insert should move smoothly to the "ON" position without any interruption.
3. Reduce the pressure to below 2.5 bar (36.25 psi). The source insert must move back to the
"OFF" position:
• If the source insert does not move continuously or if there are other signs of a malfunction, the
source insert must be secured in the "OFF" position and the competent radiation safety officer
notified.
• If it is not possible to move the source insert from ON to OFF, follow the instructions in the section
"What to do in an emergency" (emergency action).→ 51
• In the event of corrosion, follow the instructions in the section "Maintenance and inspection"
(measures in the event of corrosion).→ 48
Routine leak testing
The capsule enclosing the radiation source must be checked for leaks at regular intervals. The
frequency of the leak tests must correspond to the intervals specified by the authority or handling
authorization.
A leak test is not only required as part of routine checks but must also be performed whenever
an incident occurs that may impair the casing around the radiation source. In such instances,
the leak test procedure must be arranged by the competent radiation safety officer. The
applicable regulations must be observed and the test must comprise the source container and
all other affected parts of the process vessel. The leak test must be conducted as soon as
possible after the incident. The leak test procedure described below is intended for the
following situations:
• For routine tests during continuous operation
• When the source container has been in storage for an extended period
• When the source container is to be put back into operation after storage
Leak test procedure
Leak tests must be performed by a person or an organization authorized to provide leak test services,
or using a leak test kit that has been provided by an authorized organization. Leak test kits must be
used according to the manufacturer's instructions. Records of the leak test results must be retained.
Unless otherwise instructed, perform the leak test as follows:
A
B
C
D
E
A0018425
A
FQG61/FQG62; order code 020, option A
B
FQG61/FQG62; order code 020, option B
C
FQG61/FQG62; order code 020, option C
D
FQG61/FQG62; order code 020, option D
E
FQG61/FQG62; order code 020, option K, L, M or N