Volume 9, Issue 1 (Iranian Journal of Radiation Safety and Measurement 2021)                   IJRSM 2021, 9(1): 79-87 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

tourang M, hadadi A, athari-allaf M, sardari D. Determination of 7Be concentration in Tehran city using high volume air sampler and HPGe detector. IJRSM. 2021; 9 (1) :79-87
URL: http://rsm.kashanu.ac.ir/article-1-577-en.html
Science and Research Branch, Islamic Azad University
Abstract:   (308 Views)
In this research, air samples were collected at an air flow rate of 300 m3/h to 900 m3/h. These samples were collected during more than two months (Nov 2019-Jan 2020). After the decay of short-lived radionuclides, the samples were formed as a disc to prepare for measurement. Then, these discs were evaluated by two HPGe detectors with relative efficiencies of 40% and 70%. A prototype of a standard high volume air filter was proposed and constructed by a novel method, which provides a symmetric distribution of radionuclides and efficiency calibration curve was obtained for two HPGe detectors. This standard filter was solved the problem of the asymmetry and inhomogeneous distribution of radionuclides in standard air samples. 7Be concentrations were assessed in the collected samples. The average concentration of 7Be was measured as 3.80±0.46 mBq/m3.
Full-Text [PDF 5082 kb]   (75 Downloads)    
Type of Study: Research | Subject: Special

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2021 CC BY-NC 4.0 | Iranian Journal of Radiation Safety and Measurement

Designed & Developed by : Yektaweb