منابع مشابه
Biological proliferation of cesium-137 through the detrital food chain in a forest ecosystem in Japan
Radionuclides, including (137)Cs, were released from the disabled Fukushima Daiichi Nuclear Power Plant and had been deposited broadly over forested areas of north-eastern Honshu Island, Japan. In the forest, (137)Cs was highly concentrated on leaf litters deposited in autumn 2010, before the accident. Monitoring of the distribution of (137)Cs among functional groups clearly showed the role of ...
متن کامل01.09 Radioactivity in Soils (Cesium-134 and Cesium-137) (Edition 1992)
The reactor accident at Chernobyl on 26 April 1986 dramatically demonstrated the dangers involved in man-made radioactivity. The Chernobyl catastrophe was incomparably larger than the reactor accident in Harrisburg, USA in 1979. Chernobyl released enormous amounts of radioactive substances. Wind and weather dynamics transported these substances and deposited them onto the earth as radioactive d...
متن کاملSpatial Variability and Cesium-137 Inventories in Native Forest
With the nuclear fission discovery and development of nuclear weapons in 1940s, artificial radioisotopes were introduced in the environment. This contamination is due to worldwide fallout by superficial nuclear tests realized from early 1950s to late 1970s by USA, former URSS, UK, France and China. One of theses radioisotopes that have been very studied is cesium-137. Cesium-137 has a half-life...
متن کاملCesium-137 activity concentrations in soil and brick samples of Mirpur, Azad Kashmir Pakistan
Background: The aim of this study was to measure137Cs levels in soil and brick samples to set the baseline data and an indicator of fallout radioactivity for this part of the world. This study will help to probe, if there is any health threat posed by 137Cs exposure to the residents of the area. Materials and Methods: Twenty five samples of soil and 6 samples of bricks were collected from diffe...
متن کاملStandardization of Cesium - 137 Gamma - Ray Sources Terms of Exposure Units ( Roentgens ) . In
'3'CS y~ray sources, whic h have been proposed by the Pub lic Health Service as a subs titute for radium in th e treatme nt of ma lignant diseases, require suitab le calibration if cons is tency is to be achie ved in radiation treatme nt. Several '"'Cs so urces we re ca libra ted using a graphite cavi ty ionizat ion chambe r in an open·ai r geometry. The co ntribution of scatter from the room s...
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ژورنال
عنوان ژورنال: Kontakt
سال: 2005
ISSN: 1212-4117,1804-7122
DOI: 10.32725/kont.2005.070