Chopter §
CONCLUSIONS end RECOMMENDATIONS
Although the results reported and discussed in this report 4o not have the precision of a
carefully controlled laboraiory experiment, they are adetuste to support aevoral conclu-
CONCLUSIONS
1. The emouat and distribution of contamination that aircraft {pour during fights
through nuclear clouds is fairly uniform, considering the widely varying circumstances
under which the contamination ia incurred. Thore do not seem to oe any significant
variations due to device yield or aircraft type.
2. The ratio between the surface intensity us measured by photographic film and the
T168 was found to have a mean value of 110 for impingement surfaces and 4G for sliding
surfaces. The messured values varied by a factor of five above and below the mear..
3. The total contact-radiation dose rate can be evaluated watisfactorily through the
use of the T133 and theae ratios.
4. There {3 uo requirementfor special field Insc:umentation for operational organizations to measure che total surface radiation intensity, provided that certain precautions
are observec: (1) Pergonnel should avold direct contact between the skin and the surface
of highly contaminated aircraft and (2) the whole-body exposure should be monitored carefully. Skin-surface contact can be avoided through the use of disposable clothing, especially gloves. If the whole-bodv exposure is kept within permissible limits, there ts
little possibility of a serious contaci cxposure.
5. All of the gloves tested were found to reduce the intensity of radiation hot spots
by at least 60 percent. Therefore, the important considerations are comfort, ease of
movement, imperviousness to radioactive particles, and ease of laundering and cleaning.
6. Maintennnee, refueling, and rearming pergonnel could begin work as early as
H + 2 hours and continue to vork for a period of 8 hours on the most-highly contaminated
ho
6.1
5
tee Ate ae
tment RN
Net aed ace ae gt a be ed alee edaeben
sions.
RECOMMENDATIONS
1. When working on contaminated aircraft on which the surface gammaradiation dose
rate exceeds 0.1 r/hr, personnel should wear gloves, as well as adequate clothing, and
exercise caution to prevent contact of bare skin with the aircraft surface.
2. Air Force Technical Orders and SOP's should be revised to reflect the lack of
necessity for decontamination of aircraft by Air Force operational o~ganizations.
41
SECRET
,
vee at
5.2
44
a a Al Sa telah a er
project (without decontamination! at the expense -f less than 1.6 r of whole-body gamma
dose.
ee me ee We amie re ga
aircraft obtained in this project (without docontamination) at tbe expense of 5 r of whole-
body gamma dose.
7. Aftor (HK + 24) hours, personnel could begin work and continue to work for 10 days,
at a re‘e of 8 hours per day, on the most highly contaminated aircraft obtained in this
f
.
ic