The estimation of the dose from cosmic radiation received by the population living at mainland of China

Details The estimation of the dose from cosmic radiation received by the population living at mainland of China The estimation of the dose from cosmic radiation received by the population living at mainland of China

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989stin...9212985j&link_type=abstract

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Computer Science

China, Cosmic Rays, Dosimeters, Populations, Radiation Dosage, Cities, Fluence, Neutron Flux Density, Rural Areas

Scientific paper

The measurement of ionization distribution caused by the cosmic ray ionizing components in the air, the survey of population distribution in geography and the investigation of total passengers taking air liners at the mainland of China have been completed. By taking the data from the census of the year 1986 and the population distribution of the mainland, considering the cosmic ray distribution with the height and referring the distribution of neutron flux density in cosmic rays, the population-weighted mean annual effective dose equivalent, which is obtained from 2017 counties and 353 cities, for inhabitants living in every provinces and municipalities directly under Central Government has been calculated. The collective dose equivalent produced by the external exposure of cosmic rays is also estimated when people are taking air liners. The results which are effected by the population distribution show that the annual effective dose equivalant received by the population of China from cosmic rays is 28 lower lower than the population of the world. Most of Chinese people are living in the Northern Hemisphere area that has a lower elevation and geomagnetic latitude, and 53.6 percent of them are in the area of elevation below 100 m and 91 percent are in the area of geomagnetic latitude below 30 deg N.

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