Journal Announcement: EDB8301 Subfile: ERA (Energy Research Abstracts). Country of Origin: United States Abstract: Enewetak Atoll in the Pacific is used for atmospheric testing of U.S. nuclear weapons. Beta dose and ..gamma..-ray exposure measurements were made on two islands of the Enewetak: Atoll during July-August 1976 to determine the ..beta.. and low energy .gamma..-contribution to the total external radiation doses to the returning Marshallese. Measurements were made at numerous locations with thermoluminescent dosimeters (TLD), pressurized ionization’ chambers, portable NaI detectors, and thin-window pancake GM probes. Results of the TLD measurements with and without a ..beta..-attenuator indicate that approx. 29% of the total dose rate at 1m in air is due to ..beta..- or low energy ..gamma..-contribution. The contribution at any particular site, however, is reduced by vegetation. Integral 30-yr external shallow dose estimates for future inhabitants were made and compared with external dose estimates of a previous large scale radiological survey. Integral 30-yr shallow external dose estimates are 25-50% higher than whole body estimates. Due to the low penetrating ability of the ..beta..’s or low energy ..gamma..’s, however, several remedial actions can be taken to reduce the shallow dose contribution to the total external dose.; Major Descriptors: *ENIWETOK -- RADIATION DOSES Descriptors: BETA PARTICLES; ENVIRONMENT; EXTERNAL IRRADIATION; GAMMA RADIATION; GROUND COVER; MAN; NUCLEAR EXPLOSIONS Broader Terms: ANIMALS; CHARGED PARTICLES; DOSES; ELECTROMAGNETIC RADIATION 7; EXPLOSIONS; IONIZING RADIATIONS; IRRADIATION; ISLANDS; MAMMALS; MARSHALL ISLANDS; MICRONESIA; OCEANIA; PRIMATES; RADIATIONS; VERTEBRATES Subject Categories: 655003* -- Medical Physics -- Dosimetry INIS Subject Categories: C55* -- Personnel Dosimetry & Monitoring 10/5/705 (Item 405 from file: 103) 01135748 ERA-08-013013; CXS-83-000240; EDB-83~-035760 Author(s): Bliss, W. (comp.) Title: Enewetak fact book (a resume of pre-cleanup information) Corporate Source: Department of Energy, Las Vegas, NV (USA). Nevada Operations Office Publication Date: Sep 1982 p 219 Report Number(s): Nv0-214 Order Number: DE83004468 Note: Portions of document are illegible Document Type: Report Language: English Journal Announcement: NTS8302 Availability: NTIS, PC Al10/MF AOl. Subfile: NTS (NTIS); INS (US Atomindex input); ERA (Energy Research Abstracts). » Country of Origin: United States Country of Publication: United States Abstract: The book contains a group of short treatises on the precleanup condition of the islands in Enewetak Atoll. Their purpose was to provide brief guidance to the radiological history and radiological condition of the islands for use in cleanup of the atoll. (ACR); Major Descriptors: *ENIWETOK -- CONTAMINATION; *ENIWETOK -- SITE SURVEYS Descriptors: DOSE RATES; NUCLEAR EXPLOSIONS; NUCLEAR WEAPONS; RADIOECOLOGICAL CONCENTRATION; RADIOISOTOPES Broader Terms: ECOLOGICAL CONCENTRATION; EXPLOSIONS; ISLANDS; ISOTOPES; MARSHALL ISLANDS; MICRONESIA; OCEANIA; WEAPONS Subject Categories: 450202* Weaponry ~-- (-1989) 510302 -- Explosions & Explosives -- Nuclear -- = o ra -- Environment, Terrestrial -- Radioactive Materials Monitoring, & Transport -- Terrestrial Ecosystems & Food Chains -~INIS Subject Categories: E14* -- Nuclear Explosions C22 -- Radionuclide Ecology (-1987) Co LO