Abstract
Fly ash from coal fired power plants might be used as filling material below buildings used for habitation. The fly ash content of the radionuclides of potassium, thorium and radium can cause external exposure of the inhabitants to {gamma} radiation emitted during the radioactive decay of those radionuclides. Methods for calculation of the {gamma} dose rate in air at indoor and outdoor positions are described. The dependence of the air dose rate on the vertical and horizontal dimensions of the fly ash material and on the thickness of a covering layer of soil or sand is analysed. The effective annual dose to inhabitants are calculated for typical Danish housing conditions with the buildings placed on a layer of fly ash of infinite vertical and horizontal dimensions and covered by soil or sand of varying thickness. (au) 10 refs.
Citation Formats
Hedemann Jensen, P.
External radiation doses from deposed fly ash with a content of {sup 40}K, {sup 226}Ra and {sup 232}Th; Eksterne straalingsdoser fra deponeret flyveaske med indhold af {sup 40}K, {sup 226}Ra og {sup 232}Th.
Denmark: N. p.,
1991.
Web.
Hedemann Jensen, P.
External radiation doses from deposed fly ash with a content of {sup 40}K, {sup 226}Ra and {sup 232}Th; Eksterne straalingsdoser fra deponeret flyveaske med indhold af {sup 40}K, {sup 226}Ra og {sup 232}Th.
Denmark.
Hedemann Jensen, P.
1991.
"External radiation doses from deposed fly ash with a content of {sup 40}K, {sup 226}Ra and {sup 232}Th; Eksterne straalingsdoser fra deponeret flyveaske med indhold af {sup 40}K, {sup 226}Ra og {sup 232}Th."
Denmark.
@misc{etde_10142376,
title = {External radiation doses from deposed fly ash with a content of {sup 40}K, {sup 226}Ra and {sup 232}Th; Eksterne straalingsdoser fra deponeret flyveaske med indhold af {sup 40}K, {sup 226}Ra og {sup 232}Th}
author = {Hedemann Jensen, P}
abstractNote = {Fly ash from coal fired power plants might be used as filling material below buildings used for habitation. The fly ash content of the radionuclides of potassium, thorium and radium can cause external exposure of the inhabitants to {gamma} radiation emitted during the radioactive decay of those radionuclides. Methods for calculation of the {gamma} dose rate in air at indoor and outdoor positions are described. The dependence of the air dose rate on the vertical and horizontal dimensions of the fly ash material and on the thickness of a covering layer of soil or sand is analysed. The effective annual dose to inhabitants are calculated for typical Danish housing conditions with the buildings placed on a layer of fly ash of infinite vertical and horizontal dimensions and covered by soil or sand of varying thickness. (au) 10 refs.}
place = {Denmark}
year = {1991}
month = {Dec}
}
title = {External radiation doses from deposed fly ash with a content of {sup 40}K, {sup 226}Ra and {sup 232}Th; Eksterne straalingsdoser fra deponeret flyveaske med indhold af {sup 40}K, {sup 226}Ra og {sup 232}Th}
author = {Hedemann Jensen, P}
abstractNote = {Fly ash from coal fired power plants might be used as filling material below buildings used for habitation. The fly ash content of the radionuclides of potassium, thorium and radium can cause external exposure of the inhabitants to {gamma} radiation emitted during the radioactive decay of those radionuclides. Methods for calculation of the {gamma} dose rate in air at indoor and outdoor positions are described. The dependence of the air dose rate on the vertical and horizontal dimensions of the fly ash material and on the thickness of a covering layer of soil or sand is analysed. The effective annual dose to inhabitants are calculated for typical Danish housing conditions with the buildings placed on a layer of fly ash of infinite vertical and horizontal dimensions and covered by soil or sand of varying thickness. (au) 10 refs.}
place = {Denmark}
year = {1991}
month = {Dec}
}