Monte Carlo calculations of correction factors for plane-parallel ionization chambers in clinical electron dosimetry

Medical Physics

Volumn 35, Issue 9, 2008, Pages 4033-4040

  Araki, Fujio ^a  

^a KUMAMOTO UNIVERSITY   (Japan)

Author keywords

Electron dosimetry; Monte Carlo calculations; Plane parallel ionization chamber; Replacement correction factor; Wall correction factor

Indexed keywords

DOSIMETRY; ELECTRON ENERGY LEVELS; IONIZATION; IONIZATION CHAMBERS; MONTE CARLO METHODS;

CORRECTION FACTORS; EGSNRC MONTE CARLO; ELECTRON ENERGIES; LOW ENERGY ELECTRON BEAMS; MONTE CARLO CALCULATION; PLANE PARALLEL IONIZATION CHAMBER; SENSITIVE VOLUME; WALL CORRECTION FACTORS;

ELECTRONS;

WATER;

ARTICLE; DOSIMETRY; IONIZATION CHAMBER; MATHEMATICAL ANALYSIS; MATHEMATICAL COMPUTING; MONTE CARLO METHOD; PRIORITY JOURNAL; RADIATION DOSE DISTRIBUTION;

EID: 50449104526     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2968102     Document Type: Article

References (23)

1. P. R. Almond, P. J. Biggs, B. M. Coursey, W. F. Hanson, M. S. Huq, R. Nath, and D. W. O. Rogers, " AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams.," Med. Phys. 26, 1847-1870 (1999).
2. IAEA, " Absorbed dose determination in external beam radiotherapy: An international code of practice for dosimetry based on standards for absorbed dose to water.," Technical Report Series No. 398 (IAEA, Vienna, 2000).
3. JSMP: Japanese Society of Medical Physics, " The standard dosimetry of absorbed dose in external beam radiotherapy.," Tsusho-sangyo-kenkyusya, Tokyo, 2002 (in Japanese).
4. IPEM, " The IPEM code of practice for electron dosimetry for radiotherapy beams of initial energy from 4 to 25 MeV based on an absorbed dose to water calibration.," Phys. Med. Biol. 48, 2929-2970 (2003).
5. J. Sempau, P. Andreo, J. Aldana, J. Mazurier, and F. Salvat, " Electron beam quality correction factor for plane-parallel ionization chambers: Monte Carlo calculations using the PENELOPE system.," Phys. Med. Biol. 49, 4427-4444 (2004).
6. L. A. Buckley and D. W. O. Rogers, " Wall correction factors, Pwall, for parallel-plate ionization chambers.," Med. Phys. 33, 1788-1796 (2006).
7. F. Verhaegen, R. Zakikhani, A. DuSautoy, H. Palmans, G. Bostock, D. Shipley, and J. Seuntjens, " Perturbation correction factors for the NACP-02 plane-parallel ionization chamber in water in high-energy electron beams.," Phys. Med. Biol. 51, 1221-1235 (2006).
8. K. Zink and J. Wulff, " Monte Carlo calculations of beam quality correction factors kQ for electron dosimetry with a parallel-plate Roos chamber.," Phys. Med. Biol. 53, 1595-1607 (2008).
9. M. McEwen, H. Palmans, and A. Williams, " An empirical method for the determination of wall perturbation factors for parallel-plate chambers in high-energy electron beams.," Phys. Med. Biol. 51, 5167-5181 (2006).
10. L. L. W. Wang and D. W. O. Rogers, " Calculations of the replacement correction factors for ion chambers in megavoltage beams by Monte Carlo simulation.," Med. Phys. 35, 1747-1755 (2008).
11. I. Kawrakow and D. W. O. Rogers, " The EGSnrc code system: Monte Carlo Simulation of Electron and Photon Transport.," National Research Council of Canada Report PIRS-701, 2002.
12. D. W. O. Rogers, B. A. Faddegon, G. X. Ding, C. M. Ma, J. We, and T. R. Mackie, " BEAM: A Monte Carlo code to simulate radiotherapy treatment units.," Med. Phys. 22, 503-524 (1995).
13. D. W. O. Rogers, C. Ma, G. X. Ding, B. R. Walters, D. Sheikh-Bagheri, and G. G. Zhang, " BEAMnrc user's manual.," National Research Council of Canada Report PIRS-509 (a) Rev F, 2001.
14. M. R. Bieda, J. A. Antolak, and K. R. Hogstrom, " The effect of scattering foil parameters on electron-beam Monte Carlo calculations.," Med. Phys. 28, 2527-2534 (2001).
15. F. Araki, " Monte Carlo study of correction factors for the use of plastic phantoms in clinical electron dosimetry.," Med. Phys. 34, 4368-4377 (2007).
16. C. M. Ma, D. W. O. Rogers, and B. R. Walters, " DOSXYZnrc user's manual.," National Research Council of Canada Report PIRS-509 (b) Rev F, 2001.
17. D. W. O. Rogers, I. Kawrakow, J. P. Seuntjens, B. R. Walters, and E. Mainegra-Hing, " NRC User Codes for EGSnrc.," National Research Council of Canada Report PIRS-702 Rev B, 2005.
18. P. R. Almond, F. H. Attix, L. J. Humphries, H. Kubo, R. Nath, S. Goetsch, and D. W. O. Rogers, " The calibration and use of plane-parallel ionization chambers for dosimetry of electron beams: An extension of the 1983 AAPM protocol report of AAPM Radiation Therapy Committee Task Group No. 39.," Med. Phys. 21, 1251-1260 (1994).
19. E. Chin, D. Shipley, M. Bailey, J. Seuntjens, H. Palmans, A. DuSautoy, and F. Verhaegen, " Validation of a Monte Carlo model of a NACP-02 plan-parallel ionization chamber model using electron backscatter experiments.," Phys. Med. Biol. 53, N119-N126 (2008).
20. F. W. Wittkämper, H. Thierens, A. Van der Plaetsen, C. de Wagter, and B. J. Mijnheer, " Perturbation correction factors for some ionization chambers commonly applied in electron beams.," Phys. Med. Biol. 36, 1639-1652 (1991).
21. A. Van der Plaetsen, J. Seuntjens, H. Thierens, and S. Vynckier, " Verification of absorbed doses determined with thimble and parallel-plate ionization chambers in clinical electron beams using ferrous sulphate dosimetry.," Med. Phys. 21, 37-44 (1994).
22. F. Araki, Y. Shirakawa, R. Ikeda, T. Shimonobou, N. Moribe, T. Takada, M. Takahashi, H. Oura, and M. Matoba, " Determination of overall perturbation factors for plane-parallel ionization chambers in electron beams.," Jpn. Med. Phys. 34, 95-103 (2000).
23. D. T. Burns, G. X. Ding, and D. W. O. Rogers, " R50 as a beam quality specifier for selecting stopping-power ratios and reference depths for electron dosimetry.," Med. Phys. 23, 383-388 (1996).