PRIVACY ACT MATERIAL REMOVED (3 peer=.
€
EXHIBIT O
fis DOCUNENT CONSISTS
| 17 AUG 1948
NO.
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INTERROGATION OF LTCDR VANDERGRIFT
BY CCMuANDER WINANT
Removal of Filter Samples from TIrones — Test Zebra
It was necessary for the man accomplishing the mission to run in, re-
lease the filter quickly and get out,
The blue 1C r dosimeter vas checked
after each entry and as the operation progressed, it gridually built up to
a total of @ r in the case of
“,
This reading would have given
cause for alarm except for the fect tint this particular dosimeter (intermediate range) has a consistent history of reading high by a factor of
about three.
«we do not rate this blue pencil Gosimeter type very highly,
but for this particular operation it was the only instrument available
because the ion chamber cannot be read "on the rune"
On this occasion
the dosimuter read low.
Film badge exposures were as follows:
157
17.
9°
3.8r
5.6
r
Methods used
Lrones landed, Long checked tail and ok'd hook on.
parking revetment.
Uwrones towed to
Vandergrift checkec nose for top filter box reuoval,
luason kept running record of dosimeter readings, logging and recharging
200 mr dosimeters as necessary.
wurones were found to be exceptiorally hot.
*
COPIED/DOE
LANL RC
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