Publication Date: 1 Jul 1979 p 33 Report Number(s): AD-A-088365 Contract Number (DOE): DNA001-79-C-0153 Document Type: Report Language: English Journal Announcement: EDB8012 Availability: NTIS, PC A03/MF AOl. Subfile: NTS (NTIS). Country of Origin: United States Country of Publication: United States Abstract: During the past three years, the Defense Nuclear Agency (DNA) has conducted a series of rocket experiments from the Kwajalein Atoll, Marshall Islands, to investigate the character of intense, scintillation-producing irregularities that occur in the nighttime equatorial ionosphere. Because the source mechanism of equatorial irregularities, believed to be the Rayleigh-Taylor instability, is analogous to that which generates plasma-density striations in a nuclear-induced environment, there is considerable interest in the underlyingphysics that controls the characteristics of these irregularities. A primary objective of ALTAIR investigations of equatorial irregularities is to seek an understanding of the underlying physics by establishing the relationship between meter-scale irregularities (detected by ALTAIR), and large-scale plasma depletions (or ’bubbles’) that contain the kilometer-scale, scintillation-producing irregularities. An important application of this relationship has been the use of ALTAIR as a real-time locator of intense irregularities for the purpose of rocket launch criteria.; Major Descriptors: *IONOSPHERIC STORMS -- SCINTILLATIONS Descriptors: ALIGNMENT; BUBBLES; ELECTRON DENSITY; F REGION; MAGNETIC FIELDS; VOIDS Broader Terms: EARTH ATMOSPHERE; IONOSPHERE; PLANETARY IONOSPHERES Subject Categories: 640201* -- Atmospheric Physics -- Auroral, Tonospheric, & Magetospheric Phenomena 10/5/8008 (Item 508 from file: 103) 00733350 EDB-81-041605 Title: Absorption by plants of unseparated fission products derived from the hydrogen bomb detonated in the spring of 1954 at Bikini Atoll Author(s): Yatazawa, M.; Ishihara, T. Source: Nippon Nogei Kagaku Kaishi (Japan) v 29. Coden: NNKKA Publication Date: 1955 p 229-234 Document Type: Journal Article Language: English Journal Announcement: EDB8103 Subfile: TIC (Technical Information Center). Country of Origin: Japan Abstract: In a radiochemical survey on the contamination of white clover grown in a field, sample plants were obtained from the same grass land at 3 different times. The ash of each sample was analyzed. It was concluded that radioactive alkaline earths, especially /sup 89/Sr and /sup 90/Sr were selectively accumulated in plants. The selective 90039710 absorption of Bikini ash by rice plants was also studied. Noncontaminated rice plants were cultivated in the radioactive solution produced from Bikini ash for 20 days. Then the absorption by plants of radioactive elements was examined by chromatographic exchange. From the elution curve and ratio of radioactivity of each separation group, it has become clear that rice plants accumulated larger parts of fission products in their roots and selectively absorbed and translocated radioactive alkaline earths in their shoots even if the absorption ratio of Bikini fission products was comparatively small.; Major Descripters: *CLOVER -- RADIONUCLIDE KINETICS; *FISSION PRODUCTS -ROOT ABSORPTION; *RICE -- RADIONUCLIDE KINETICS; *STRONTIUM 89 -BIOLOGICAL ACCUMULATION; *STRONTIUM 90 -- BIOLOGICAL ACCUMULATION Descriptors: ALKALINE EARTH ISOTOPES; ASHES; BIKINI; CHROMATOGRAPHY; GROWTH ; PLANTS; RADIOCHEMICAL ANALYSIS; ROOTS; THERMONUCLEAR EXPLOSIONS;