00399737 AIX-09-386169; Author(s): Levy, EDB-78-098917 Title: Analysis of alpha emitters in the coral, lagoon by solid-state track detection Y.; Inst., Troy, N.Y. Miller, D.S.; Friedman, (USA). Dept. of Geology); Source: Health Phys. (United Kingdom) v 34:3. Publication Date: Mar 1978 p 209-217 G.M. (Rensselaer Polytechnic Noshkin, V.E. Coden: HLTPA Document Type: Journal Article Language: English AIX . : Journal Announcement: EDB7807 Subfile: from Bikini Favites virens, ‘ (non-US Atomindex input). Country of Origin: United States Abstract: A quantitative method for the non-destructive analysis of alpha emitters in CaCO/sub 3/ matrices by solid-state track detection in cellulose nitrate was developed. 0.4pCi/g in an area of 4 mm/sup 2/ can be measured routinely; but with a lower resolution. of 0.15 smaller concentrations can be determined Calibration methods used were a Pu source ..mu..Ci in conjunction with polycarbonate and CaCO/sub 3/ absorbers of different thickness, 2-30 ..mu..m, and a powdered coral sample from Enewetak Atoll which had been radiochemically analyzed for plutonium radionuclides, /sup 241/Am 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 identified with growth during the years of nuclear testing, 1954, 1956 and 1959, are found in small discrete spots. Thin sections cut parallel to the direction of coral growth give different patterns of distribution. No such hot spots are evident in any post-test year growth sections although plutonium and other long lived fission and activation products were measured in these sections by radiochemical techniques. ; Major Descriptors: *CORALS -- ALPHA DETECTION; *PLUTONIUM ISOTOPES -RADIOECOLOGICAL CONCENTRATION Descriptors: ALPHA DECAY RADIOISOTOPES; AMERICIUM 241; ANIMAL GROWTH; BIKINI; CALCIUM CARBONATES; DISTRIBUTION; FALLOUT; NITROCELLULOSE; NONDESTRUCTIVE TESTING; NUCLEAR EXPLOSIONS; PHOTOGRAPHIC FILM DETECTORS ; QUANTITATIVE CHEMICAL ANALYSIS; RADIOMETRIC ANALYSIS; SENSITIVITY; TIME DEPENDENCE Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALKALINE EARTH METAL COMPOUNDS; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; ANIMALS; CALCIUM COMPOUNDS; CARBOHYDRATES; CARBON COMPOUNDS; CARBONATES; CHARGED PARTICLE DETECTION; CHEMICAL ANALYSIS; CHEMICAL EXPLOSIVES; CNIDARIA; ECOLOGICAL CONCENTRATION; ESTERS; EXPLOSIONS; EXPLOSIVES; GROWTH; HEAVY NUCLEI; INVERTEBRATES; ISLANDS; ISOTOPES; MARSHALL ISLANDS; MATERIALS TESTING; MEASURING INSTRUMENTS; NITRIC ACID ESTERS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; POLYSACCHARIDES; QUANTITATIVE CHEMICAL ANALYSIS; RADIATION DETECTION; RADIATION DETECTORS; RADIOISOTOPES; SACCHARIDES; TESTING; YEARS LIVING RADIOISOTOPES - Subject Categories: 560172* -- Radiation Effects -- Nuclide Kinetics & Toxicology -- Animals -- (-1987) 053000 -- Nuclear Fuels -- Environmental Aspects INIS Subject Categories: C21* -- Tissue Distribution, Metabolism, Toxicology & Removal of Radionuclides 10/5/951 00393290 Author(s): (Item 651 from file: 103) ERA-03-043799; EDB-78-092470 Walker, D.N.; Szuszczewicz, E.P.; Holmes, J.C. Title: Real-time display of ionospheric electron density profiles from a rocket-borne plasma probe: the payload, real-time results. Interim report Corporate Source: Naval Research Lab., Publication Date: Nov 1977 Report Number(s): AD-A-047823; Document Type: Report Language: English p 21 Journal Announcement: EDB7803 acquisition system, Washington, NRL-MR-3649 D.C. 506 LQ 5] (USA) and the