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4 Mounting
4.1 General
Anyone with basic radiation safety awareness training can mount the source holder
on the process vessel provided the source is locked in the OFF position and the
following instructions are observed.
4.2 Mounting Checklist
Before beginning the mounting of the source holder, perform the following steps:
1. Conduct visual inspection of source holder.
2. Ensure that the shutter is closed and locked.
3. Ensure that external surfaces are not damaged.
4. Check that the mounting position of the source holder complies with
manufacturer's engineering drawings and
specifications. (See certified
correct drawings or contact VEGA Americas.)
5. Ensure adequate clearance to operate the shutter or cable mechanism.
6. Consider in advance any high temperature or corrosive environmental
conditions. For example, you should consider the following items:
• Adequate insulation to protect source holder from high temperature.
• Special cooling system required to reduce source holder temperature.
• Additional protection required to prevent corrosive material from settling
on source holders.
• Excessive vibration (over 1G).
7. Have personnel and equipment, cranes, hoists, and supports available to
mount the unit.
8. Be prepared to handle the weight of the unit. Remember, source holders
are very heavy.
Before beginning any installation steps, all technicians must be
specifically licensed by a nuclear regulatory authority in order to
perform any non-routine maintenance.
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