~
XT
center and outfitted with hat, gloves, coveralls, and shoes,
When
departing the aircraft, decontamination area personnel reprocessed
through the personnel decontamination center according to their
published SOP,"
(b)
In monitoring, intensity readings were taken at an approximate
distance of one inch from the aircraft surface being monitored,
Instru-
ment probes were fitted with one inch wire off-sets to aid in standarization of readings.
(c)
A minimum amount of time devoted to each reading,
During application of the decontamination agent, precautions
were taken to avoid spreading of contaminant.
(a)
~
The run off area was monitored and if deemed necessary outlined
and marked as a contaminateddanger area,
It was anticipated that two crews consisting of five men each would be
involved in this phase of the project.
Equipment included decontamination
trucks, "gunk," kerosene, detergent, and water, tugs and two bars, clothing
(hats, gloves, coveralls, and shoes), monitoring instruments, personnel
dosimeters, and film badges, and finally, engine repair stands.°
In reply to a query from the Naval Radiological Defense Laboratory,
Colonel Ernest A. Pinson furnished the effectiveness figures for the
process.
Normal decontamination procedures are 95-98% effective
on smooth contaminated surfaces of the aircraft,
However,
the radiation level in the cockpit or next to the engine
is only reduced by a factor of about 10% after the initial
high pressure hosing, and about 50% after the first mamal
scrubbing,
Manpower requirements for the scrubbing process depend
on the aircraft type, the degree of decontamination required,
and the time available before the aircraft is needed by the
235
SWEH -2-003),
~U
{
AFWUKO
AS
n 1