… of the variation of the effective dose per air kerma for environmental gamma rays depending
on … using anthropomorphic phantoms and Monte Carlo calculations, taking into account the …

… change in measured dose rate that is significant at the 95% confidence level as an estimate
of the mean environmental dose … gamma radiation), terrestrial gamma radiation sources. The …

… radiation was calculated to be 1769 µSv but varies … environment of glacial lake clays
compared to the other three cities. … gamma ray surveys of the four cities to determine the annual …

… radiation is the largest contributor to the external dose of the … gamma dose estimation due
to the terrestrial sources is … dose, but also because of variations of the individual dose related …

… be accurately calculated by identifying only a key gamma ray … Variance-reduction techniques,
such as the DXTRAN card … m were calculated for different conditions of source distribution …

… normally exceeds that from all man-made sources combined. … effective dose due to indoor
and outdoor gamma radiation for … variations have been observed in environmental radiation …

… was calibrated with standard sources (Japan Radioisotope … in May to July to calculate the
annual mean dose rate. Since we … Seasonal variation of the dose rate was clear in the Tsugaru …

… source of ionizing radiation, and the major contributor to the average doses received by
mankind with little variation … that allows the estimation of gamma radiation dose from the set of …

… in the environment, then a more exact dose calculation could … the variation in response to
changes in dose or dose rates, … high natural gamma ray background from terrestrial sources, an …

… In the light of environmental contamination assessment, the … for the estimation of the gamma
radiation of terrestrial origin … With the purpose of testing how a change of latitude in AGRS …