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7
Dismounting
Before you attempt to dismount the source holder, make sure you are aware of
any potentially dangerous process conditions such as extreme temperatures,
high pressure in the vessel, and toxic or corrosive materials.
7.1 De-commission the Source Holder
In many U.S. installations, a VEGA Americas Field Service Engineer de-
commissions the source holder. Only persons with a specific license from the
U.S. NRC, Agreement State, or other nuclear regulatory agency may remove the
source holder lock.
Users outside the United States must comply with the appropriate
nuclear regulatory agency's regulations in matters pertaining to
!
licensing and handling of the equipment.
CAUTION
See the Radiation Safety Manual, and the appropriate current
!
regulations for details.
NOTE
Dismount or Removal Requirements
Before you remove the source holder, perform the following steps:
•
Conduct a visual inspection of the source holder. Make certain the
external surface is smooth and not damaged.
•
Check corroded and rusted units, which have been in service under
extreme environmental conditions. These units may require special
removal, handling, and shipping procedures.
•
Ensure that the shutter is closed and locked on applicable source holders.
•
Make sure the cable/rod is retracted on applicable source holders.
•
Have personnel and equipment, cranes, hoists, and supports available to
remove unit.
39089-US-210509
Dismounting
37
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