International Journal of Radiation Research
نشریه پرتو پژوه
Int J Radiat Res
Basic Sciences
http://ijrr.com
79
journal79
2322-3243
2345-4229
10.61186/ijrr
en
jalali
1385
9
1
gregorian
2006
12
1
4
3
online
1
fulltext
en
Analysis of gross alpha, gross beta activities and beryllium- 7 concentrations in surface air: their variation and statistical prediction model
Radiation Biology
Radiation Biology
تحقيق بديع
Original Research
<span style="font-weight: bold">
Background:</span> Measurement of gross , gross activities, and cosmogenic beryllium-7 (7Be) concentrations were made both daily and weekly during the years 2001- 2004 from samples of atmospheric aerosols filtered from the air at Tehran Nuclear Research Center (35 41' N) and Zahedan (28 29' N).
<span style="font-weight: bold">Materials and Methods:</span> Weekly aerosol samples were collected with the high-volume air samplers on cellulose filters to determine the 7Be contents of samples, using a semiconductor gamma spectrometer. Airborne dust samples were collected on daily basis on fiber glass filters and used to determine the gross and gross activities with automatic beta analyzer and a ZnS(Ag) counter, respectively. In this study, the concentration and meteorological data were used to determine models for gross , gross and 7Be.
<span style="font-weight: bold">Results:</span> The air concentrations of gross and gross activities and 7Be concentrations displayed lognormal distributions during the study period. Both and 7Be had maximum activity concentrations during warm mid-year months.
<span style="font-weight: bold">Conclusion:</span> The models can be used to estimate the part of the trend in gross and in 7Be levels that can be accounted for by-trends in local meteorology. There has been a satisfactory agreement between the results of the model and the measurements.
7Be concentrations; gross activity; gross activity; meteorology parameters
155
159
http://ijrr.com/browse.php?a_code=A-10-1-217&slc_lang=en&sid=1
F.
Arkian
farkian@aeoi.org.ir
79003194753284600654
79003194753284600654
Yes
M.
Salahinejad
79003194753284600655
79003194753284600655
No
J.
Amidi
79003194753284600656
79003194753284600656
No