cau
SUBJECT:
Report or
cot.
—-
and "Btuer Sanp t yw Mission
collected at approximatcly 1200 M, 6 Mare: i954. Instrument readings with the MX-‘
showed a maximum of « ar/hr, howover *ri« we rot considered reliable, since a
“ower reading,
higher seale showed
ce. AILUK ATOLL. The ship reach.d this atoll at approximtely 1600 M, 6
farch 1954, and slowly moved %o an anchorage off Ailuk Island, the most heavily
populated.
The lagom has not been swopt, and nuncrous coral heads and pinnacles
provided considerabl: hazard to ship movement.
The landing party moved ashore br
whaleboat without difficulty, «nd agzin obtained waiter samples from the most promi .
ant cistorn and seil samples from random unsheltered spots.
Readings with the MX~!
showed approximtely 3 arfhr (off the 2 mr scalo).
An AN/FDR-27E showed a high
reading of 7 orfur, however, ona differcrt scale a reading of 12 or 15 or/hr was
obtained. The MX-5 roading {1s probably scirest correet. No significant varlatior.<
were detected on bare fset or clothing of tndividuals,
taken at approximtely L700 MW, 6 Meret Laty.
Samplcos and roadings wore
qd, MEJIT Island, This singh. :coil tslend is also surrounded bya recf,
3 is JEMO, but landing was possiblo with i whaleboat, due to an areca protocted fr:
vhe surf,
The island was found to be tcavily populated in view of its sizo, the
sotal number of people coing 327, according to the island magistrate,
Soil and
yater samples were taken as in the previously deseribed mannor, at approximtaly
1300 M, 7 March 1954. Roadings with the MX~5 showed maximum of approximtely 3
ar/hr (off the 2 scale, but approximatcly ...5 on tho 20 scale); the maximum readin;
with a PDR 27 Ewis lo mr/nr.
TWO6*
The wma fisure was probably somewhere botwoen the
2. CONCLUSIONS. Low lcvol (less thar 10 orfhr) radiation measuromort s with
field instrummnts of thc type used are highly unsatisfactory. Ono MX¥-5 and threo
4N/PDR 27 E instrumants ali showed widely variant readings on different scales,
and varied among 2ach othor when exposed tc the samo radiation, An AN/PDR T1-B
proved completoly useless not holding to z2.ro :ven after an hourg warm-up, and
also showing wide .y vweriart readings or U?7f pent scales.
3. RECQLQENDATIONS. Landing parti:s in islands sach as JEMO and MEJIT shoulc
be provided with a rubber 6-marn or S-mu. onzumtic boot, to provide groater safcty
to personnel and «-quipment, This will percit lending directly on live coral recfs
with less dangor «f ths doat being stow i... Ships assigned to such missions
should draw such : quipmo* orter te donor,
4. The succcssfut accomplishment of tx mission wis greatly facilitated by
she interest and cnthusiasm of the Commndiig Cfficer of the USS RENSHAW, CDR L, H.
.lford, USN, and his cfficers and men, i. .r material contributions were noccssary
to the mission, hewover, the oinyg weliccl
weritions and assistance in solutions
of problems provee iv Laer