Radiological maps of outdoor and indoor gamma dose rates in Greek urban areas obtained by in situ gamma spectrometry

Abstract

The results obtained from 259 indoor and outdoor in situ gamma spectrometry measurements with a portable Ge detector and 707 total gamma dose rate measurements with an NaI detector in urban areas of 16 Greek islands are presented. From the in situ gamma spectra, the absorbed dose rate in air due to Uranium series, Thorium series, (40)K and (137)Cs are derived and discussed. The results obtained from the present work in conjunction with those reported previously were used for the realization of a complete indoor and outdoor gamma radiation map of Greek urban areas using in situ gamma spectrometry with portable Ge detector.

Estimation of Outdoor Gamma Dose Rates and Lifetime Cancer Risk in Akoko Region, Ondo State, Southwestern, Nigeria.

“…The radiological map present the map of the study area and the gamma dose rate data obtained in each town surveyed. Such map has been presented in a previous research [8]. The values obtained in this research were in agreement with those reported in typical researches in Nigeria [9,3].…”

“…Three readings were taken consecutively in a location and the average recorded to represent the value for the location. The outdoor measurements were performed on roads, pavements, over soil in parks, gardens, near public buildings such as hospitals, schools, offices, shops [8]. A fixed distance measurement of 1m was used.…”

Real-Time Environmental Gamma Radiation Dose Rate Measurement around Major Nuclear and Radiological Facilities in Bangladesh

“…Great variations have been observed in environmental radiation levels and several international studies have been characterized gamma dose rates both in outdoor and indoor environments [6][7][8][9][10][11][12][13][14] . Both laboratory and in-situ gamma spectroscopy are often used for monitoring and assessment of radioactivity and radiation dose rates in the environment due to both natural and anthropogenic sources [15][16][17][18][19][20] . In-situ techniques for measuring the activity concentration resulting from the gamma radiation and characterizing its sources with gamma ray spectrometer have been used successfully in outdoor and indoor environment [12,[21][22][23] .…”

Measurement of Indoor Terrestrial Gamma Radiation Dose and Evaluation of Annual Effective Dose at AECD Campus, Dhaka, Bangladesh

“…Both laboratory and in-situ gamma spectroscopy are often used for monitoring and assessment of radioactivity and radiation dose rates in the environment due to both natural and anthropogenic sources [15][16][17][18][19][20] . In-situ techniques for measuring the activity concentration resulting from the gamma radiation and characterizing its sources with gamma ray spectrometer have been used successfully in outdoor and indoor environment [12,[21][22][23] .…”