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UNLLADDINILY
we

cos

Particular attention was given to the ZERO island RadSafe survey
scheduled to start on X-plus-1 day.

on

necessity of using a rather complicated layout of numbered stakes to be

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ona Y e , etd

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er

Since this operation involved the

used ag reference points for plotting isointensity lines, it was
desirable to hold several rehearsals involving the entire survey party
to insure the ;reatest accuracy and speed possible in accomplishing
the operation.

The need to expedite this mission was given special

emphasis since it was considered "routine" and as such the allowable
daily exposure was 100 mr.
Throughout this period of practical indoctrination monitors were
briefed in detail concerning the entire Rad Safe operation, and all

"ei

participating personnel had gained a canprehensive picture of respective

NY

assignments as they uppeared under field conditions.

ua
15 ie

vor 5

Sy!
Bs !
we.

The Task Group was now in readiness for the full-scale rehearsal
of the Task Force X-RAY operations.

This was reflected during PETER~

X-RAY operations when all TG-7.6 missions were rehearsed with a minimum
of difficulty.

On 9 April a critique was held aboard the BAIROKO at which monitors
reported and commented on FETER-X-RAY missions,

A summary of the more

important coanments follows:

(a)
(>)
(c)

Radex should be broadcast to all ships.
The L-5 flight to clear Aomin and Runit should be repeated

X-RAY day afternoon because of possible delayed fallout,

A RadSafe survey should be run via helicopter prior to
drone tank operation.

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