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Project 2.10 ~ Verification of Washdown Effectiveness as a Shipboard
Radiological Countermeasure - M. M. Biggers
OBJECTIVES
Operation of YAG's and LST to be stationed in fallout area
Rad Safe support for NRDL Projects
Washdown evaluation
DESCRIPTION AND EXPERIMENTAL PROCEDURES
This project will document the procedures involved with the deploy-—
ment and turn-about operations of the YAG's and LST.
It will also report
on the effectiveness of the washdown systen.
4
Ship Operations - Results
The project ships, YAG-39, YAG-40 and LST-611, successfully conpleted their mission at shot CHEROKEE.
The ships operated in Area 5,
roughly N and NNW from Bikini Atoll at ranges as follows:
YAG~ 40
YAG- 39
LST-611
- 40 miles
- 70 miles
- 100 miles
YAG's 39 and 40 encountered small amounts of fallout measuring
about 0.15 to 0.20 mr/hr on the deck,
fallout.
LST-611 received no measurable
The ships were not closed nor was the washdown system
activated.
The YAG'ts 39 and 40 returned to Eniwetok Atoll on C £ 1 ani the
LST-611 on C # 2,
The ships were radiologically clean and no experi-
mental or operational decontamination was performed.
During the sortie, no major casualties of ships propulsion,
auxiliaries, navigational, communications or control equipment were
experienced.
COMEDILOE
LANL KC 7