Distribution of Terrestrial .GAMMA. Ray Dose Rates in Japan
نویسندگان
چکیده
منابع مشابه
Simple soil mass balance approach to interpret the distribution of global terrestrial gamma ray dose rates in relation to geology.
A recent literature survey on natural gamma rays has yielded data on the dose rate levels above soils and rocks in the world, classified by their associated bedrock types. For comparison, the data in the Japanese Islands were also collected. The compiled results indicated a strong linear correlation between the soil and the rock dose rates. A soil-mass balance model was used to obtain the quant...
متن کاملGamma-ray localization of terrestrial gamma-ray flashes.
Terrestrial gamma-ray flashes (TGFs) are very short bursts of high-energy photons and electrons originating in Earth's atmosphere. We present here a localization study of TGFs carried out at gamma-ray energies above 20 MeV based on an innovative event selection method. We use the AGILE satellite Silicon Tracker data that for the first time have been correlated with TGFs detected by the AGILE Mi...
متن کاملMeasuring γ–ray dose of terrestrial samples using β-γ Spectrometry
Background: The existence of some radionuclides in soil and some building materials produce a β-γ radiation field, which in some regions the exposure of these radionuclides to human is high. Materials and Methods: The air-absorbed dose, indoor and outdoor annual effective dose of soil and some building material samples (ceramic, granite, gypsum, etc.). The samples were collected from 3...
متن کاملObservations of Terrestrial Gamma-Ray Flash Electrons
Terrestrial gamma-ray flash (TGF) emissions are predicted to be accompanied by energetic electron emissions. These electrons have been suggested to explain several anomalous TGF observations by the RHESSI and BATSE spacecraft. These electrons additionally provide a new window for study of TGFs as they carry additional information about the source through their pitch angle / arrival time distrib...
متن کاملAssessment of Outdoor Gamma Radiation Dose Rates in 49 Cities of Guilan Province, IRAN
Introduction Guilan is one of the provinces in North of Iran, with population of 2,480,874 and a total area of 14,042 square kilometers. This study assesses the outdoor natural gamma dose rates in the air of 49 cities in Guilan and calculates corresponding average annual effective dose. Materials and Methods A total of 260 different sample points measurements were carried out. The results inc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 2006
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.115.87