Document Details


Title:
ANALYSIS OF ALPHA EMITTERS IN THE CORAL, FAVITES VIRENS, FROM BIKINI LAGOON BY SOLID STATE TRACK DETECTION
Subject Terms:
ALPHA PARTICLES; RADIATION DETECTION; ALPHA DETECTION
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:
JOURNAL ARTICLE
Publication Date:
1976 Nov 08
Declassification Status:
Never classified
Document Pages:
0009
Accession Number:
NV0045053
Originating Research Org.:
LAWRENCE LIVERMORE LABORATORY, U. OF CA
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
A QUANTITATIVE METHOD FOR THE NON-DESTRUCTIVE ANALYSIS OF ALPHA EMITTE RS IN CACO-3 MATRICES BY SOLID-STATE TRACK DETECTION ( CELLULOSE NITRA TE ) WAS DEVELOPED. 0.4PCI/G IN AN AREA OF 4 MM-2 CAN BE MEASURED ROUT INELY; SMALLER CONCENTRATIONS CAN BE DETERMINED BUT WITH A LOWER RESOL UTION. CALIBRATION METHODS USED WERE (A) A PU SOURCE OF 0.15 MICROCI I N CONJUNCTION WITH POLYCARBONATE AND CACO-3 ABSORBERS OF DIFFERENT THI CKNESS (2-30 MICRO MILLI) AND (B) A POWDERED CORAL SAMPLE FROM ENEWETA K ATOLL WHICH HAD BEEN RADIOCHEMICALLY ANALYZED FOR PLUTONIUM RADIONUC LIDES, AM-24 AND OTHER LONG-LIVED FISSION AND ACTIVATION PRODUCTS. SLABS OF A CORAL, FAVITES VIRENS, FROM BIKINI LAGOON WERE ANALYZED. A QUANTITY OF THE ALPHA EMITTERS DETECTED IN REGIONS OF THE CORAL IDENTI FIED WITH GROWTH DURING THE YEARS OF NUCLEAR TESTING ( 1954, 1956 AND 1959 ) ARE FOUND IN SMALL DISCRETE SPOTS. THIN SECTIONS CUT PARALLEL T O THE DIRECTION OF CORAL GROWTH GIVE DIFFERENT PATTERNS OF DISTRIBUTIO NS. NO SUCH " HOT SPOTS " ARE EVIDENT IN ANY POST-TEST YEAR GROWTH SEC TIONS ALTHOUGH PLUTONIUM AND OTHER LONG LIVED FISSION AND ACTIVATION P RODUCTS WERE MEASURED IN THESE SECTIONS BY RADIOCHEMICAL TECHNIQUES.


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