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TM00358 Rev. A
Table 4-6 Turret Removal — Tools
Description
Socket wrench
Hex socket driver
4.4.1
Special Handling Instructions for Damaged Turrets
The IR camera's optical lenses are coated with an anti-reflection coating that contains a small amount of Thorium
Fluoride. Thorium Fluoride is a compound that contains naturally radioactive thorium. The radio-chemicals emit
ionizing radiation, primarily in the form of alpha particles. Thorium and its decay products, called thorium daughters,
also emit some beta particles and gamma radiation. Use of these thorium compounds, evaporated onto an infrared
lens, under the authority of an NRC (Nuclear Regulatory Commission) does not require special handling procedures
or a specific radiation safety monitoring program. The turret's enclosure and environmental protection measures
both protect personnel from exposure to these lenses. However, is the case of a crashed or damaged turret, special
handling might be required because the IR lenses may have been broken and potentially expose individuals to a
Thorium Fluoride dust inhalation risk.
WARNING: THORIUM FLUORIDE, WHEN CONSIDERED IN ITS FINAL FORM AS AN OPTICAL COATING
WITHIN THE INFRARED LENS, PRESENTS NO HAZARD TO PERSONNEL IN THE NORMAL
USE,
MAINTENANCE,
SUBSYSTEM. HOWEVER, SHOULD THE INFRARED LENS BECOME DAMAGED OR BROKEN,
THE MATERIAL MUST BE HANDLED AND WASTE DISPOSED OF IN ACCORDANCE WITH
STATE AND/OR FEDERAL REGULATIONS. IN THE EVENT OF A BROKEN OR DAMAGED
INFRARED TELESCOPE ASSEMBLY, THE FOLLOWING PROCEDURES MUST BE FOLLOWED:
•
WEAR EYE PROTECTION, A FILTER MASK TO COVER THE MOUTH & NOSE AND
GLOVES WHEN HANDLING BROKEN GLASS.
•
PICK UP ALL PIECES OF BROKEN GLASS AND PLACE IN A DOUBLE PLASTIC BAG
AND SEAL.
•
WIPE UP SUSPECTED CONTAMINATED AREAS WITH RYMPLECLOTH OR LENS
TISSUE MOISTENED WITH ISOPROPYL ALCOHOL.
•
PLACE CLEANUP MATERIALS IN A DOUBLE PLASTIC BAG AND SEAL.
•
WASH HANDS IMMEDIATELY AFTER CLEANUP IS COMPLETE.
•
DISPOSE OF MATERIALS AS LOW LEVEL RADIOACTIVE WASTE PER LOCAL BIO-
ENVIRONMENTAL ENGINEERING OFFICE DIRECTIVES.
WARNING: TURRET IS A HEAVY ITEM. USE ONLY APPROVED EQUIPMENT AND PROCEDURES FOR
UNPACKING AND LIFTING THE TURRET.
WARNING: DANGER ZONE. THE TURRET IS REMOTELY CONTROLLED AND CAPABLE OF CONTINUOUS
MOVEMENT FROM DRIVE MOTORS THAT ARE CAPABLE OF FORCES THAT CAN INJURE
PERSONNEL.
Note: This installation procedure assumes that there is a hoisting device available to raise and lower the turret.
L-3 WESCAM
All Rights Reserved
Part Number
3/8" drive
3/16"
TRANSPORTATION
Manufacturer
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OR
STORAGE
OF
Chapter 4 - Turret Removal
Notes
THE
SURVEILLANCE
October 2007
81
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