D. Nikezic et Kn. Yu, Relationship between the Po-210 activity incorporated in the surface of anobject and the potential alpha-energy concentration, J ENV RAD, 47(1), 2000, pp. 45-55
The Po-210 activity in the surface layer of an object is determined by the
total deposition flux of Rn progeny. The total deposition flux is mainly a
function of deposition fraction and concentration of attached and unattache
d progeny. A linear relationship between the activity of Po-210 incorporate
d in the surface of a glass object and the average potential alpha-energy c
oncentration (PAEC) in air is found by using the Jacobi-Porstendorfer predi
ctive model for short-lived Rn progeny. The cumulative exposure to Rn proge
ny over a certain time period is also found to be related to the surface ac
tivity of Po-210. Th, surface of a glass object can be used as an effective
dosimeter for retrospective dose estimation, but with inherent uncertainti
es involved. (C) 1999 Elsevier Science Ltd. All rights reserved.