decontamination center at Kwajalein was completed and adequate stocks
of work clothing obtained.
project was completed.
The high altitude instrument calibration
By 13 April preparations for X-ray Day were
complete and the unit stood by awaiting implementation of the operation.
X-RAY TEST
This test was carried out in exactly the same manner and on the
same time schedule as the rehearsal.
Installation of drone aircraft
film badges was completed at Eniwetok by 2300 hours of X-ray minus one.
Aircraft were on stations at H hour and prepared for the detonations
with two exceptions;
the B-17 spotter aircraft which had returned to
Kwajalein with a defective weather reconnaissance aircraft and the
14,000' drone aircraft which went out of contro] at H-2 minutes and
crashed.
Following the detonation all other aircraft proceeded to
carry out their assigned missions without incident and without encountering appreciable radioactivity.
The drone aircraft were landed at
Eniwetok and all other aircraft returned to Kwajalein.
.
The period following X-ray Day was a very busy one.
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Cloud tracker
missions were flow until plus five day and the aircraft used for these
missions always returned with exterior contamination thereby necessitating monitoring and personne] decontamination operations.
Capt
Matthews and five additional monitors returned to Eniwetok on plus one
day to supervise drone aircraft decontamination operations and compile
data.
Two monitors were sent to Guam to handle a problem which arose
there in connection with weather reconnaissance aircraft contamination.
Additional operations in this period consisted of post X-ray Day
Section IX
102