Reference dosimetry condition and beam quality correction factor for CyberKnife beam

Medical Physics

Volumn 35, Issue 10, 2008, Pages 4591-4598

  Kawachi, Toru ^a,b   Saitoh, Hidetoshi ^a   Inoue, Mitsuhiro ^c   Katayose, Tetsurou ^a   Myojoyama, Atsushi ^a   Hatano, Kazuo ^b  

^a TOKYO METROPOLITAN UNIVERSITY   (Japan)

^b CHIBA CANCER CENTER   (Japan)

^c Yokohama CyberKnife Center   (Japan)

Author keywords

Beam quality correction factor; CyberKnife; Monte Carlo method; Radiotherapy; Reference dosimetry

Indexed keywords

IONIZATION; IONIZATION CHAMBERS; LINEAR ACCELERATORS; MONTE CARLO METHODS; PHOTONS; RADIOTHERAPY; SPECTROSCOPY;

BEAM COLLIMATING; CORRECTION FACTORS; CYBERKNIFE; FLATTENING FILTERS; PHOTON ENERGY SPECTRUM; QUALITY INDICES; REFERENCE CONDITION; REFERENCE DOSIMETRY;

DOSIMETRY;

ARTICLE; COLLIMATOR; DOSIMETER; DOSIMETRY; ELECTRON; IMAGE QUALITY; IONIZATION CHAMBER; LINEAR ACCELERATOR; PHOTON; PRIORITY JOURNAL; RADIATION ABSORPTION; RADIATION BEAM; RADIATION DOSE; RADIATION FIELD;

EID: 52949145220     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2978228     Document Type: Article

References (29)

1. IAEA, Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry Based on Standards of Absorbed Dose to Water, Technical Report Series No. 398 (IAEA, Vienna, 2004), Vol. 11b.
2. AAPM Task Group 51, " Protocol for clinical dosimetry of high-energy photon and electron beams.," Med. Phys. 26 1847-1870 (1999).
3. JSMP, Standard Dosimetry of Absorbed Dose in External Beam Radiotherapy (Standard Dosimetry 01) (Tsusho Sangyo Kenkyu Sha, Tokyo, 2002).
4. P. Andreo, " Absorbed dose beam quality factors for the dosimetry of high-energy photon beams.," Phys. Med. Biol. 37 2189-2211 (1992).
5. D. W. O. Rogers, " Fundamentals of dosimetry based on absorbed-dose standards.," in Teletherapy Physics, Present and Future, edited by, J. R. Palta, and, T. R. Mackie, (AAMP Washington, DC, 1996), pp. 319-356.
6. D. W. O. Rogers and C. L. Yang, " Corrected relationship between %dd (10)x and stopping-power ratios.," Med. Phys. 26, 538-540 (1999).
7. F. Araki, " Monte Carlo study of a Cyberknife stereotactic radiosurgery system.," Med. Phys. 33, 2955-2963 (2006).
8. W. R. Nelson, H. Hirayama, and D. W. O. Rogers, " The EGS4 Code System.," SLAC Report No. SLAC-265, 1985.
9. D. W. O. Rogers, " BEAM, A Monte Carlo code to simulation radiotherapy treatment units.," Med. Phys. 22, 503-524 (1995).
10. D. A. Low, " A technique for the quantitative evaluation of dose distributions.," Med. Phys. 25, 656-661 (1998).
11. D. W. O. Rogers, " NRC User Codes for EGSnrc.," NRCC Report No. PIRS-702 (revB) 2003, pp. 60-62.
12. A. E. Nahum, " Water/air stopping-power ratios for megavoltage photon and electron beams.," Phys. Med. Biol. 23, 24-38 (1978).
13. ICRU, Electron Beams with Energies Between 1 and 50 MeV, ICRU Report No. 35, Radiation Dosimetry (ICRU, Washington, D.C., 1984).
14. C. Malamut, D. W. O. Rogers, and A. F. Bielajew, " Calculation of water/air stopping-power ratios using EGS4 with explicit treatment of electron-positron differences.," Med. Phys. 18, 1222-1228 (1991).
15. P. Andreo, Improved Calculations of Stopping-Power Ratios and Their Correlation with the Quality of Therapeutic Photon Beams, Measurement Assurance in Dosimetry, (Proc Symp. Vinna 1993), (IAEA, Vienna, 1994), pp. 335-359.
16. I. Kawrakow and D. W. O. Rogers, " The EGSnrc Code System: Monte Carlo Simulation of Electron and Photon Transport.," NRCC Report No. PIRS-701, 2003, pp. 23-94.
17. P. R. Almond and H. Svensson, " Ionization chamber dosimetry for photon and electron beams theoretical considerations.," Acta Radiol. Ther. Phys. Biol. 16, 177 (1977).
18. M. T. Gillin, R. W. Kline, A. Niroomand-Rad, and D. F. Grimm, " The effect of thickness of the waterproofing sheath on the calibration of photon and electron beams.," Med. Phys. 12, 234-236 (1985).
19. W. F. Hanson and J. A. Dominguez Tinoco, " Effects of plastic protective caps on the calibration of therapy beam in water.," Med. Phys. 12, 243-248 (1985).
20. G. D. Lempert, R. Nath, and R. J. Schulz, " Fraction of ionization from electrons arising in the wall of an ionization chamber.," Med. Phys. 10, 1-3 (1983).
21. S. M. Seltzer, " Calculation of photon mass energy-transfer and mass energy-absorption coefficients.," Radiat. Res. 136, 147-170 (1993).
22. J. H. Hubbell, " Photon mass attenuation and energy-absorption coefficients from 1 keV to 20 MeV.," Int. J. Appl. Radiat. Isot. 33, 1269-1290 (1982).
23. C. M. Ma and A. E. Nahum, " Effect of the size and composition of the central electrode on the response of cylindrical ionization chambers in high-energy photon and electron beams.," Phys. Med. Biol. 38, 267-290 (1993).
24. A. Palm and O. Mattsson, " Experimental study on the influence of the central electrode in Farmer-type ionization chambers.," Phys. Med. Biol. 44, 1299-1308 (1999).
25. IAEA, Absorbed Dose Determination in Photon and Electron Beams: An International Code of Practice, Technical Report Series No. 277 (2nd ed. in 1997) (IAEA, Vienna, 1987).
26. IAEA, The Use of Plane-Parallel Ionization Chambers in High-Energy Electron and Photon Beams: An International Code of Practice for Dosimetry, Technical Report Series No. 381 (IAEA, Vienna, 1997).
27. K. A. Johansson, L. O. Mattsson, L. Lindborg, and H. Svensson, " Absorbed-dose determination with ionization chambers in electron and photon beams having energies between 1 and 50 MeV.," National and International Standardization of Radiation Dosimetry, (Proc Symp. Atlanta, 1977) (IAEA Vienna, 1978), Vol. 2, pp. 243-270.
28. C. M. Ma and A. E. Nahum " Effect of size and composition of central electrode on the response of cylindrical ionization chambers in high-energy photon and electron beams.," Phys. Med. Biol. 38, 267-290 (1993).
29. British Institute of Radiology, Central axis depth dose data for use in radiotherapy, Brit. J. Radiol. Suppl. 25 (The British Institute of Radiology, London, 1996).