surfaces.
Tnece me~n vaiues can be applied toe casee where personne! are wearing
gloves. If no gloves are worn, the ratios of 110 and 40, measured over small ureas,
should be applied. The use of one cf several types of gloves will reduce the radiation
dose to the hands to about 60 percent of that which bare hands would recoiva under the
same circumstances (see Table 3.6). Additionally, the hot spots of intense radiation
known, the dose rate at any subsequent time can be computed from the relationship:
Iy =Ioti?
(4.3)
Where: It = Dose rate at time t, r/hr
Ig = Dose rate at H+ J hours, r/hr
t = Time afler detonation, hra
The total dose received during any given interval of time is:
D=5 Ajty- It)
(4.2)
Where: D = Total dose, r
I, = Dose rate at time t,, r/hr
I, = Dose rate at time t,, r/hr
t; = Time after detonation, hre
t, = Time after detonation, hrs
This expression is derived in Reference 9.
The most-highly contaminated aircraft surveyed during this study was an F-84 that
a9
SECRET
ae ia3 et adilas
OT
OS
It can
be eatimated with the dose rates measured by the T1B.
Since the whole-body gamma dose {s the limiting factor, it is appropriate to consider
what this dose will be under various conditions. If the dose rate at 4 + 1 hour, Ip, is
eye
The whole-
LEI
dose rate to the skin can be reduced appreciably by the wearing of gloves.
body dose {s measured by the standard Rad-Safe film badge and pencil dosimeters,
‘ ee
removal of the gloves loaves the hands {ree of contamination. There ars undoubtedly
other combinations that would prove more satisfactory to other inaividual usere.
When all factors are taken into account, It becomes apparent that the whole-body
gamma-radiation dose ia the limiting tactor in operational situations requiring work on
aircraft contaminated by Might through the clouds from nuclear detonations, provided
personnel wear gloves. Facts leading to this conclusion include: (1) personnel working
on the aircraft are in the gammafield at all mes; (2) high dose ratea are encountered
only by direct contact with impingement surfac.:s, an infrequent occurronce, and (4) the
Fa at tee inA AEE guede Te eee de Bote. Reneeatedamtet he ae oO ee beaten Nee We ER I
glove with liner were found to be tatisfactory, since they were ficxiblo but not too alippery for easy grasping. All three combinations suffer the disadvantage of increasing
sweating of the hands. Ail three are impervious to the reroaculate contamination; thus,
tM tre a eee
are reduced to between 10 and 60 percent of the ungloved valuos. The vinyl-coated
cotton glove, a combination of rubber surgical and broadcloth gloves, or a leather NMying