Surface dosimetry for oblique tangential photon beams: A Monte Carlo simulation study

Medical Physics

Volumn 35, Issue 1, 2008, Pages 70-76

  Chow, James C L ^a,b,c,d   Grigorov, Grigor N ^e  

^a PRINCESS MARGARET HOSPITAL   (Canada)

^b UNIVERSITY OF TORONTO   (Canada)

^c UNIVERSITY OF WATERLOO   (Canada)

^d RYERSON UNIVERSITY   (Canada)

^e Grand River Regional Cancer Centre   (Canada)

Author keywords

Beam obliquity; Monte Carlo simulation; Surface dose; Tangential beam

Indexed keywords

PARTICLE BEAMS; PHANTOMS; PHASE SPACE METHODS; PHOTOELECTRONS; PHOTONS;

AIR INTERFACE; BEAM OBLIQUITY; DOSE VARIATIONS; FILM MEASUREMENT; GANTRY ANGLES; SURFACE DOSE; TANGENTIAL BEAM; TANGENTIAL PHOTON BEAMS;

MONTE CARLO METHODS;

ARTICLE; CALCULATION; DOSIMETRY; FILM DOSIMETER; HUMAN; LINEAR ACCELERATOR; MEASUREMENT; MONTE CARLO METHOD; PHANTOM; PHOTON THERAPY; PREDICTION; PRIORITY JOURNAL; RADIATION BEAM; RADIATION FIELD; RADIATION MEASUREMENT; SURFACE PROPERTY;

EID: 37549061431     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2818956     Document Type: Article

References (27)

1. H. Chung, H. Jin, J. F. Dempsey, C. Liu, J. Palta, T. Suh, and S. Kim, " Evaluation of surface and build-up region dose for intensity-modulated radiation therapy in head and neck cancer., " Med. Phys. 0094-2405 10.1118/1.1992067 32, 2682-2689 (2005).
2. G. K. Svensson, " Superficial doses in treatment of breast with tangential fields using 4 MV x rays., " Int. J. Radiat. Oncol. Biol. Phys. 2, 705-710 (1977). 0360-3016
3. I. Turesson and H. D. Thames, " Repair capacity and kinetics of human skin during fractionated radiotherapy: Erythema, desquamation, and telangiectasia after 3 and 5 year's follow up., " Radiother. Oncol. 0167-8140 10.1016/0167-8140(89)90131-X 15, 169-188 (1989).
4. N. Lee, " Skin toxicity due to intensity-modulated radiotherapy for head-and-neck carcinoma., " Int. J. Radiat. Oncol. Biol. Phys. 53, 630-637 (2002). 0360-3016
5. ICRP Publication No. 59, The Biological Basis for Dose Limitation in the Skin (Pergamon, Oxford, 1992).
6. H. F. Xiang, J. S. Song, D. W. H. Chin, R. A. Cormack, R. B. Tishler, G. M. Makrigiorgos, L. E. Court, and L. M. Chin, " Build-up and surface dose measurements on phantoms using micro-MOSFET in 6 and 10 MV x-ray beams and comparisons with Monte Carlo calculations., " Med. Phys. 0094-2405 10.1118/1.2710951 34, 1266-1273 (2007).
7. P. Scalchi, P. Francescon, and P. Rajaguru, " Characterization of a new MOSFET detector configuration for in vivo skin dosimetry., " Med. Phys. 0094-2405 10.1118/1.1924328 32, 1571-1578 (2005).
8. J. C. L. Chow, G. N. Grigorov, and R. B. Barnett, " Study on the surface dose generated in the prostate intensity modulated radiation therapy treatment., " Med. Dosim. 31, 249-258 (2006). 0958-3947
9. S. Devic, J. Seuntijens, W. Abdel-Rahman, M. Evans, M. Olivares, E. B. Podgorsak, T. Vuong, and C. G. Soares, " Accurate skin dose measurements using radiochromic film in clinical applications., " Med. Phys. 0094-2405 10.1118/1.2179169 33, 1116-1124 (2006).
10. M. J. Butson, T. Cheung, P. Yu, and M. Chrrie, " Surface dose extrapolation measurements with radiographic film., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/49/13/N03 49, N197-N201 (2004).
11. N. Dogan and G. P. Glasgow, " Surface and build-up region dosimetry for obliquely incident intensity modulated radiotherapy 6 MV x rays., " Med. Phys. 0094-2405 10.1118/1.1625116 30, 3091-3096 (2003).
12. B. J. Gerbi and F. M. Khan, " Measurement of dose in the buildup region using fixed-separation plane-parallel ionization chambers., " Med. Phys. 0094-2405 10.1118/1.596522 17, 17-26 (1990).
13. S. E. Burch, S. A. Parker, A. M. Vann, and J. C. Arazie, " Measurement of 6 MV x-ray surface dose when topical agents are applied prior to external beam radiation., " Int. J. Radiat. Oncol. Biol. Phys. 38, 447-451 (1997). 0360-3016
14. T. Kron, A. Elliot, T. Wong, G. Showell, B. Clubb, and P. Metalfe, " X-ray surface dose measurements using TLD extrapolation., " Med. Phys. 0094-2405 10.1118/1.597019 20, 703-711 (1993).
15. J. P. Lin, T. C. Chu, S. Y. Lin, and M. T. Liu, " Skin dose measurement by using ultra-thin TLDs., " Appl. Radiat. Isot. 0969-8043 10.1016/S0969-8043(01)00082-3 55, 383-391 (2001).
16. W. Abdel-Rahman, J. P. Seuntjens, F. Verhaegen, F. Deblois, and E. B. Podgorsak, " Validation of Monte Carlo calculated surface doses for megavoltage photon beams., " Med. Phys. 0094-2405 10.1118/1.1829401 32, 286 (2005).
17. B. E. Bjarngard, P. Vadash, and T. Zhu, " Doses near the surface in high-energy x-ray beams., " Med. Phys. 0094-2405 10.1118/1.597477 22, 465 (1995).
18. A. W. Beavis, " Treatment planning challenges in breast irradiation: the ideal and the practical., " Clin. Oncol. 18, 200-209 (2006). 0305-7399
19. ICRU, " Determination of dose equivalents resulting from external radiation sources., " Report No. 39, International Commission on Radiation Units and Measurements, Washington, DC (1985).
20. J. C. L. Chow and G. N. Grigorov, " Dose measurement near a non-radioactive gold seed using radiographic film., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/50/18/N02 50, N227-N234 (2005).
21. W. R. Nelson, H. Hirayama, and D. W. O. Rogers, " The EGS4 code system., " SLAC Report 265, Stanford Linear Accelerator Center, Stanford, CA (1965).
22. I. Kawrakow and D. W. O. Rogers, " The EGSnrc code system: Monte Carlo simulation of electron and photon transport., " NRCC Report PIPRS-701, National Research Council of Canada, Ottawa (2000).
23. D. W. O. Rogers, B. A. Faddegon, G. X. Ding, C. M. Ma, J. Wei, and T. R. Mackie, " BEAM: A Monte Carlo code to simulate radiotherapy treatment units., " Med. Phys. 0094-2405 10.1118/1.597552 22, 503-524 (1995).
24. D. W. O. Rogers, C. M. Ma, G. X. Ding, B. Walters, D. Sheikh-Bagheri and G. G. Zhang, " BEAMnrc users manual., " NRC Report PIRS 509a (rev. F) (2001).
25. C. M. Ma, P. Reckwerdt, M. Holmes, D. W. O. Rogers, and B. Geiser, " DOSXYZ user manual., " NRC Report PIRS 509b (1995).
26. A. F. Bielajew and D. W. O. Rogers, " PRESTA-The parameter reduced electron-step transport algorithm for electron Monte Carlo transport., " Nucl. Instrum. Methods Phys. Res. B 18, 535-548 (1984).
27. E. Mainegra-Hing, D. W. O. Rogers, and I. Kawrako, " Calculation of photon energy deposition kernels and electron dose point kernels in water., " Med. Phys. 0094-2405 10.1118/1.1861412 32, 685-699 (2005).