Archives of Advances in Biosciences

Vol. 8 No. 3 (2017)

Calculation of exposure rate constant for 60Co, 22Na and 111In Sources with FLUKA Monte Carlo Code

Archives of Advances in Biosciences, Vol. 8 No. 3 (2017), 13 June 2017 , Page 18-21
https://doi.org/10.22037/jps.v8i3.12143

Abstract

Exposure rate constant (G) relates activity of a point source to exposure rate at certain distance. It’s an important parameter in radiation protection, medical uses and radiological assessments. In this study, exposure rate constant for three radionuclides include 60Co, 22Na and 111In were calculated with FLUKA Monte Carlo method. Each source was simulated and exposure rate at different distances of 20, 30, 40, 60, 80, 100, 120, 150, 200 and 300cm from the sources were measured. For dose measurements,   a farmer ionization chamber was simulated with active volume of 0.6cm3, inner electrode of aluminium with diameter of1mm and wall of pure graphite with thickness of 0.75mm. Calculated exposure rate constants for 60Co, 22Na and 111In at 20 to 300cm from the source ranged from 33.45 to 0.16 mR/(mCi.h), 29.12 to 0.10 mR/(mCi.h) and 8.73 to 0.03 mR/(mCi.h) respectively which show a decreasing trend. Comparison of our results with other studies show that there are good agreement for 60Co and 22Na; the present values for exposure rate constant for 111In was higher than previous reports.

Keywords:
  • Exposure Rate Constant (Γ)
  • Monte Carlo
  • FLUKA
  • Cobalt-60
  • Sodium-22
  • Indium-111

How to Cite

Khoramian, D., & Saba, V. (2017). Calculation of exposure rate constant for 60Co, 22Na and 111In Sources with FLUKA Monte Carlo Code. Archives of Advances in Biosciences, 8(3), 18–21. https://doi.org/10.22037/jps.v8i3.12143

References

Battistoni G, Broggi F, Brugger M, Campanella M, Carboni M, Empl A, Fasso A, Gadioli E, Cerutti F, Ferrari A, editors. The application of the Monte Carlo Code FLUKA in radiation protection studies for the large Hadron collider. The Joint International Conference of the 7th Supercomputing in Nuclear Application and the 3rd Monte Carlo (SNA+ MC 2010), October 17-21, 2010, Hitotsubashi Memorial Hall, Tokyo, Japan; 2011.

Kim JD, Choi HY, Lee YD, Park CJ, Kim HD. Comparison of Activation Analysis Codes between ORIGEN-S and FLUKA. 2013: 2.

Battistoni G, Boehlen T, Cerutti F, Chin PW, Esposito LS, Fassò A, Ferrari A, Lechner A, Empl A, Mairani A. Overview of the FLUKA code. Annals of Nuclear Energy 2015; 82: 10-8.

Gusev I, Guskova A, Mettler FA. Medical management of radiation accidents: CRC Press; 2001.

Smith DS, Stabin MG. Exposure rate constants and lead shielding values for over 1,100 radionuclides. Health Physics 2012; 102: 271-91.

Mehta S. Evaluation of Exposure Rate Constant ‘Γ’for Dosimetry of Radionuclides Having Very Low Energy Photon Component.IJNM, 200217(1): 40-43.

Ninkovic M, Raicevic J, Adrovic F. Air kerma rate constants for gamma emitters used most often in practice. Radiation Protection Dosimetry 2005; 115: 247-50.

Ilić S, Hansman J, Jovančević N, Krmar M. Specific Gamma-ray dose Constant for 252 Cf Sealed with Produced Fission Fragments. Physics Procedia 2014; 59: 78-82.

Cherry SR, Sorenson JA, Phelps ME. Physics in Nuclear Medicine: Elsevier Health Sciences; 2012.

University of California SD. Cobalt-60. available at: https://ehs.ucsd.edu/rad/radionuclide/Co-60.pdf

Martin JE. Physics for radiation protection: a handbook: John Wiley & Sons; 2006.

University of California SD. Sodium-22. available at: https://ehs.ucsd.edu/rad/radionuclide/Na-22.pdf

University of California SD. Indium-111.available at: https://ehs.ucsd.edu/rad/radionuclide/In-111.pdf

  • Abstract Viewed: 1816 times
  • PDF Downloaded: 440 times

Download Statastics

Developed By

Open Journal Systems

Information