Abstract
The exposure to high levels of ionising radiation can cause severe health risks including cancer. The monitoring of background radiation is a primary task of nuclear scientists and researchers in the present day. The aim of the present work is to measure effective annual dose rate due to gamma-ray background radiation in dwellings of selected villages around Tumkur. It is very important to monitor background radiation in dwellings to safeguard from the harmful effects of gamma-ray background radiation. The dose rates in dwellings were measured using a German-made portable gamma dosemeter, Gamma-Scout. The measured annual dose rates were in the range of 1.103-2.824mSv/y. From this survey, it was observed that the average annual dose rate for dwellings under study area with concrete ceiling and tiles floor are comparatively higher than the dwellings with griddle ceiling and stone floor.
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