Exposure rate measurements carried out during 1993 at the site of the National Institute of Public Health and Environmental Protection
Stralingsniveaumetingen op het terrein van het Rijksinstituut voor Volksgezondheid en Milieuhygiene gedurende het jaar 1993
Dongen R van , Zanten R van
RIVM Report 610062001
This report contains the results of exposure rate measurements carried out during 1993 on twelve locations at the site of the National Institute of Public Health and Environmental Protection at Bilthoven. The exposure rates were determined by means of thermoluminescence dosimeters on a number of locations. One of these locations was used for the determination of the natural background (reference level) on the site. The exposure rates averaged over a year appeared not to deviate significantly from the natural background levels in the Netherlands. The small increase of the annual mean of the exposure rate near the building Sg, with regard tot the reference level, is partially due to irradation activities for calibration work.