Document Details


Title:
SHIP RADIOLOGICAL COUNTERMEASURES; THE C-D CHARACTERISTICS OF FISSION PRODUCTS IN SEA WATER
Author(s):
ANDERSON, R N [UNITED STATES NAVAL RADIOLOGICAL DEFENSE LABORATORY]; GEVANTMAN, L H [UNITED STATES NAVAL RADIOLOGICAL DEFENSE LABORATORY]
Subject Terms:
NUCLEAR EXPLOSIONS; SEAWATER; CROSSROADS OPERATION; PERSONNEL; FALLOUT; MEETINGS; SHIPS; CONTAMINATION; LANTHANUM; BARIUM; ZIRCONIUM; NIOBIUM
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1963 Sep 21
Declassification Status:
Never classified
Document Pages:
0001
Accession Number:
NV0050333
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
WITH THE ADVENT OF THE FIRST WEAPONS TEST AT BIKINI ( OPERATIONS CROSS ROADS ) SHIPS STATIONED IN THE VICINITY OF THE NUCLEAR DETONATION WERE FOUND TO BE STRUCTURALLY UNDAMAGED BUT CONTAMINATED WITH RADIOACTIVE FALLOUT MAKING AN EXTREMELY HAZARDOUS SITUATION FOR OPERATING PERSONN EL. THIS LED TO A CONSIDERATION OF THE PROBLEM OF COUNTERMEASURES IN WHICH PROTECTION FROM OR SUBSEQUENT REMOVAL OF THE FALLOUT FROM THE W EATHER SURFACES OF THE SHIP BY PRESCRIBED METHODS WOULD ALLOW THE SHIP TO CARRY OUT ITS ASSIGNED MISSIONS. INVESTIGATIONS INTO THE NATURE O F SEAWATER FALLOUT DISCLOSED THAT MANY OF THE FISSION PRODUCTS WERE IO NIC IN NATURE AND CHEMICALLY REACTIVE TO A VARIETY OF SURFACES. THERE FORE LABORATORY EXPERIMENTATION HAS PLACED CONDISERABLE EMPHASIS ON TH E NATURE OF SUCH FISSION PRODUCT INTERACTION WITH SURFACES. TRACE CON CENTRATIONS OF SELECTED FISSION PRODUCTS IN SOLUTION, EITHER INDIVIDUA LLY OR AS MIXTURES, WERE DEPOSITED ON A VARIETY OF ONE INCH SQUARES AN D ALLOWED TO DRY. THERE WERE THEN DECONTAMINATED IN A NUMBER OF WAYS. EACH AIMED AT ASSESSING THE EFFICIENCY OF REMOVAL AND EXTENDING THE M ETHOD TO FULL SCALE. THE INFORMATION GAINED FROM THESE TESTS HAS LED TO PRESENT TESTS WHICH INVOLVE THE CONTAMINATION OF UP TO 2000, 0.5 S QUARE FOOT PAINTED PLATES WITH A SEAWATER SIMULANT. THE CONTAMINATION CHARACTERISTICS OF LANTHANUM, BARIUM, ZIRCONIUM, AND NIOBIUM RADIONUC LIDES HAVE BEEN STUDIES SINGLY IN THE SIMULANT. RESULTS SHOW THAT LAN THANUM IS MORE DIFFICULT TO REMOVE THAN BARIUM BECAUSE OF ITS HIGHER V ALENCE. IN ADDITION SURFACTANTS WHEN ADDED TO THE DECONTAMINATING SOL UTION HAVE PROVEN GENERALLY INEFFECTIVE. THE PRESENT STAGE OF COUNTER MEASURE DEVELOPMENT INCLUDES OPERATIONAL SHIP WASHDOWN SYSTEMS WHICH H AVE BEEN SHOWN TO BE EFFECTIVE. EVALUATION HAS YET TO BE MADE ON THE USEFULLNESS OF A PROTECTIVE STRIPPABLE COATING. FUTURE RESEARCH WILL CONTINUE ALONG THESE LINES OF DEVELOPMENT.


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