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(c) Skin contact should be avoided. Heavy gloves
should be worn if handling is required. Stronium-90 alloy
metals with damaged plating will be wrapped and sealed
in plastic bags or wrapping material. The plexiglas cap
or suitable substitute will be installed on IBIS indications
dur-ing all handling operations. Plastic goggles or glasses
should also be worn when handling the IBIS indicators.
(d) Industrial eye protection and approved respirator
will be worn removing or handling damaged or corroded
stronium alloys.
(e) Materials used in handling corroded stronium-
90 alloys (such as gloves or plastic wrap) will be placed
in a radioactive waste container for subsequent disposal
IAW applicable technical orders.
(f) Personnel handling stronium alloys will wash
hands thoroughly with soap and water immediately after
removal of gloves, before eating, drinking, smoking, or
at the end of the shift.
(g) The AMARC Radiation Safety Officer will survey
areas where corroded stronium alloyed material has
been handled or stored. Periodic surveys will be accomplished
of all stronium storage or work areas.
(h) Stronium waste will be disposed of IAW TO 00-
TO 00-105E-9
3-17
110N-2 and shipped IAW applicable federal regulations
(10 and 49 CFR).
(i) Personnel handling or removing items containing
stronium 90 from aircraft will wear a plastic face shield or
goggles to protect the eyes from bremsstrahlung and or
beta radiation.
f. THORIUM. A metallic element often alloyed with various
metals to produce a strong lightweight aircraft component.
Thorium is also found in the form of an optical
coating on optical systems. These parts present no handling
problems if appropriate precautions are followed.
(1) POTENTIAL HAZARD. Will occur when damaged
or deformed parts are handled and fine dust fills the working
environment. (The F-15 LANTIRN Pod is coated with
a Thorium Dust.) The F-16 FLIR lens and mirror are
coated with thorium fluoride 232. The sources are contained
within two bolts within the unit, therefore, if the
unit is destroyed personnel should avoid handling the
bolts unless they are checked fro radioactivity. Special
handling is required for the lens and mirror.
(2) POTENTIAL HEALTH HAZARD. Thorium presents
an internal and external radiation hazard. When taken
into the body, the intense ionization produced by the alpha
particles may cause severe localized damage to cells.
Externally, the beta radiation is classified as a
skinexposure hazard only. Beta radiation exposure to
the extremities can be reduced up to 50% by wearing
leather gloves. At adistance of a few feet, there is little
radiation exposure.
(3) FIRE HAZARD. Fire or explosion: Some of these
materials may burn, but most do not ignite readily. Uranium
and thorium granules may ignite spontaneously if
exposed to air. Nitrates are oxidizers and may ignite other
combustibles.
(4) HANDLING INSTRUCTIONS.
(a) No drilling, filing, machining, sanding or other
abrasive procedures are permitted.
(b) Where prolonged body contact is possible or
where abrasive operations are likely to affect the thorium
alloy, it should be removed and stored in a secure area.
(c) Skin contact should be avoided. Heavy gloves
should be worn if handling is required. Thorium alloy
com-ponents with damaged surfaces should be wrapped
and sealed in plastic bags or other wrapping material.
Damaged components should be treated with caution and
turned in as radiological waste.
(d) Industrial eye protection and respiratory protection
should be worn when removing or handling damaged
or corroded thorium alloys.
(e) Materials used in handling corroded thorium alloys
(such as gloves or plastic wrap) should be placed in
a radioactive waste container for subsequent disposal
IAW applicable technical orders.
(f) Personnel handling thorium alloys should wash
hands thoroughly with soap and water immediately after
removal of gloves, before eating, smoking, drinking and
at the end of the work task.
(g) The Radiation Safety Officer should survey areas
where corroded thorium components have been
handled or stored. Periodic surveys should be accomplished
of all thorium component storage or work areas.
(h) Thorium waste must be disposed of IAW TO 00-
110N-2 and shipped IAW applicable federal regulations
(10 and 49 CFR).
g. TRITIUM. A radioactive isotope of hydrogen gas.
Used as a luminescent material and can be found as a
gas or impregnated paint compound.
(1) POTENTIAL HEALTH HAZARD. Tritium is a low
energy beta producing material. Therefore, the primary
　
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