Method and software for photon dose calculation in phantoms of human body
https://doi.org/10.21514/1998-426X-2019-12-2-55-65
Abstract
The current study is focused on the development of the method of the calculation of the dose quantities required for the assessment or limitation of the ionizing exposure (mean organ doses, effective dose, distribution of the absorbed dose in the critical organ) based on the measured characteristics of the fields of the photon computational (kerma free-in-air, readings of the individual dosimeters) with the energy of 0,02-10 mEv. The dedicated software was developed based on the results of the study, allowing estimating the values of more than 20 mean organ doses, effective dose and the distribution of the absorbed dose in the red bone marrow in 8 computational children and adult models. Additionally, it is possible to calculate the ratios of the effective dose to the readings of the “individual dosimeters”, placed in 48fixed points on the phantom surface. The developed method and software can be used for: (1) calculation of the doses from external exposure and estimation of the level of the radiation injuries in case of the acute radiation exposure of the staff and public; (2) development of the models of the exposure of the staff working in the radiation fields with non-uniform distribution of their characteristics; (3)planning of the countermeasures for the remediation of the consequences of the radioactive contamination (calculation of the routes and working time in contaminated zones); (4) education and training of the staff participating in the investigation and remediation of the consequences of the radioactive contamination.
About the Author
V. Yu. GolikovRussian Federation
Vladislav Yu. Golikov - Senior Researcher of the Medical Protection Laboratory.
Mira Str., 8, Saint-Petersburg, 197101
References
1. ICRP, 1996b. Conversion coefficients for use in radiological protection against external radiation. ICRP Publication 74. Ann. ICRP 26 (3/4).
2. ICRP, 2010. Conversion Coefficients for Radiological Protection Quantities for External Radiation Exposures. ICRP Publication 116, Ann. ICRP 40(2-5).
3. Jones, T. D. CHORD Operators for Cell-Survival Models and Insult Assessment to Active Bone Marrow. Rad. Res. 71,260 - 283 (1977).
4. Bergelson, R., Suvorov, A. P, and Torlin, B. Z. Multi-Group Methods for Calculation of Protection from Neutrons. Moscow, Russia: Atomizdat (1970). (In Russian)
5. Nikolaev, M.N., Ryazanov, B.G., Savoskin, M.M. and Tsybulya A.M. Multigroup approximation in the theory of neutrons transfer. Moskow, Energoatomizdat, 256 pp. (1984). (In Russian)
6. Ritts, J., Solomito, E, Stevens, P. Calculations of Neutron Fluence to Kerma Factors for Human Body. Nuclear Application Technology 7, 89-95 (1969).
7. Golikov, V.Yu., Barkovsky, A.N., Likhtarev, I.A. Distribution of the absorbed photon dose in a human phantom. Atomnaya Energiya = Atomic Energy, 1989, Vol. 67, No. 6, pp. 396-399. (In Russian)
8. ICRU. Radiation Quantities and Units. Report No. 33. Washington, DC: International Commission on Radiation Units and Measurements. (1980).
9. King, S. D. and Spiers, F. W. Photoelectric enhancement of the absorbed dose from X-rays to human bone marrow. Experiment and theoretical studies. Br J Radiol, 58, 345-356 (1985).
10. Snyder WS, Ford MR, Warner GG, Fisher HL, Jr. Estimates of absorbed fractions for monoenergetic photon sources uniformly distributed in various organs of a heterogeneous phantom. MIRD Pamphlet No. 5. New York: Society of Nuclear Medicine; 1969.
11. Snyder WS, Ford MR, Warner GG. Estimates of specific absorbed fractions for photon sources uniformly distributed in various organs of a heterogeneous phantom. MIRD Pamphlet No. 5 (Revised). New York: Society of Nuclear Medicine; 1978.
12. Cristy, M. Mathematical phantoms representing children of various ages for use in estimates of internal dose. Oak Ridge National Laboratory, ORNL/NUREG/TM-367 (1980).
13. Eun Young Han, Wesley E. Bolch, and Keith F. Eckerman. Revisions to the ORNL series of adult and pediatric computational phantoms for use with the MIRD schema.
14. International Commission of Radiological Protection. Basic Anatomical and Physiological Data for Use in Radiological Protection: Reference Values. ICRP Publication 89. Ann ICRP 32 (3-4) (2002).
15. ICRU, 1992. Photon, Electron, Proton and Neutron Interaction Data for Body Tissues. ICRU Report 46. International Commission on Radiation Units and Measurements, Bethesda, MD.
16. Kramer, R., Zankl, M., Williams, G. and Drexler, G. The calculation of dose from external photon exposures using reference human phantoms and Monte Carlo methods. Part I: The male (ADAM) and female (EVA) adult mathematical phantoms. GSF-Report S-885, Institut fur Strahlenschutz, GSF-Forschungszentrum fur Umwelt und Gesundheit, Neuherberg-Munchen (1982).
17. ICRP (1975). International Commission on Radiological Protection, Report of the Task Group on Reference Man, ICRP Publication 23 (Pergamon Press, Oxford).
18. ICRP, 1991. 1990 Recommendations of the International Commission on Radiological Protection. ICRP Publication 60. Ann. ICRP 21(1-3).
19. ICRP, 2007. The 2007 Recommendations of the International Commission on Radiological Protection. ICRP Publication 103. Ann. ICRP 37(2-4).
20. X-5 Monte Carlo Team, “MCNP - A General Monte Carlo N-Particle Transport Code, Version 5,”LA-UR-03-1987 (Vol 1: Overview and Theory), LA-CP-03-0245 (Vol 11: User’s Guide), LA-CP-03-0284 (Vol 111: Developer’s Guide) (April, 2003).
21. Los Alamos National Laboratory. “MCNP 5: Monte Carlo N-Particle Transport Code System, Version 1.40.” Contributed by Los Alamos National Laboratory, Los Alamos, New Mexico, (2004).
22. Thomasz E., Eckerl H., Drexler G. Experimental determination of conversion factors between organ doses and measured quantities for external photon irradiation. Health Physics, 1985, v.49, p.897-905.
23. Alderson, S. W., Lanzl, L. H., Rollins, M., Spira, I. An instrumented phantom system for analog computation of treatment plans. American Journal of Roentgenology, 87:185 (1962).
24. «Uralpribor». Available from: http://akidk.ru (Accessed: 25.01.2019) (In Russian)
25. Golikov, V. Yu., Nikitin, V.V. Estimation of mean organ doses and effective dose equivalent from Rando Phantom measurements. Health Phys, 56 (1), 111-115 (1989).
26. Golikov, V., Barkovsky, A., Wallstrom, E., Cederblad, A. A comparative study of organ doses assessment for patients undergoing conventional X-ray examinations: phantom experiments vs. calculations. Radiation Protection Dosimetry, Volume 178, Issue 2, 1 January 2018, p. 223-234.
Review
For citations:
Golikov V.Yu. Method and software for photon dose calculation in phantoms of human body. Radiatsionnaya Gygiena = Radiation Hygiene. 2019;12(2):55-65. (In Russ.) https://doi.org/10.21514/1998-426X-2019-12-2-55-65