Calculation of photon energy and dose distributions in a 50 MV scanned photon beam for different target configurations and scan patterns

Medical Physics

Volumn 25, Issue 2, 1998, Pages 236-240

  Sätherberg, Anders ^a   Karlsson, Mikael ^a  

^a UMEÅ UNIVERSITY   (Sweden)

Author keywords

Beam spectrum; Dose calculation; Monte Carlo; Narrow beam HVL; Scanning photon beam

Indexed keywords

DOSIMETRY; MONTE CARLO METHODS; PARTICLE BEAMS; PHOTOELECTRONS;

BEAM CHARACTERIZATION; BEAM SPECTRUM; DOSE CALCULATION; MONTE CARLO CALCULATION; NARROW BEAMS; PHOTON BEAMS; TARGET CONFIGURATIONS; TREATMENT PLANNING SYSTEMS;

PHOTONS;

ARTICLE; DOSE CALCULATION; DOSIMETRY; PHOTON; PRIORITY JOURNAL; RADIATION DOSE; RADIATION FIELD; SYSTEM ANALYSIS;

EID: 0031910754     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.598186     Document Type: Article

References (17)

1. A. Sätherberg and M. Karlsson, "Errors in kernel based dose planning systems due to the assumption of position invariance of the photon spectrum over the irradiated surface," submitted to Phys. Med. Biol.
2. E. B. Podgorsak, J. A. Rawlinson, M. I. Glavinovic, and H. E. Johns, "Design of x-ray targets for high energy linear accelerators in radiotherapy," Am. J. Roentgenol., Radium Ther. Nucl. Med. 121, 873-882 (1974).
3. B. Nordell and A. Brahme, "Angular distribution and yield from bremsstrahlung targets," Phys. Med. Biol. 29, 797-810 (1984).
4. R. Svensson and A. Brahme, "Effective source size, yield and beam profile from multi-layered bremsstrahlung targets," Phys. Med. Biol. 41, 1353-1379 (1996).
5. G. E. Desobry and A. L. Boyer, "An analytic calculation of the energy fluence spectrum of a linear accelerator," Med. Phys. 21, 1943-1952 (1994).
6. P. Andreo, "Monte Carlo techniques in medical radiation physics," Phys. Med. Biol. 36, 861-920 (1991).
7. J. A. Halbleib, R. P. Kensek, T. A. Mehlhorn, G. D. Valdez, S. M. Seltzer, and M. J. Berger, "ITS Version 3.0: The Integrated TIGER Series of coupled Electron/Photon Monte Carlo Transport Codes," in Report SAND91-1634 (Sandia National Laboratories, Albuquerque, NM, 1992).
8. W. R. Nelson, H. Hirayama, and D. W. O. Rogers, "The EGS4 code system," in Internal Report SLAC 265 (Stanford Linear Accelerator Center, Stanford, California, 1985).
9. R. Mohan, C. Chui, and L. Lidofsky, "Energy and angular distributions of photons from medical linear accelerators," Med. Phys. 12, 592-597 (1985).
10. B. E. Bjärngard and H. Shackford, "Attenuation in high-energy x-ray beams," Med. Phys 21, 1069-1073 (1994)
11. H. Nyström and M Karlsson, "Photon beam quality specification by narrow-beam transmission measurements," Phys. Med Biol. 39, 1231-1245 (1994).
12. P. Andreo, R. Ito, and T. Tabata, "Tables of charge- and energy-deposition distributions in elemental materials irradiated by plane parallel electron beams with energies between 0.1 and 100 MeV," in Report RIAST-UOP-TR 1 (Research Institute for Advanced Science and Technology, University of Osaka Prefecture, Japan, 1992).
13. A. Sätherberg, P. Andreo, and M. Karlsson, "Bremsstrahlung production at 50 MeV in different target materials and configurations," Med. Phys 23, 495-503 (1996).
14. M. Karlsson, H. Nyström, and H. Svensson, "Photon beam characteristics on the MM50 racetrack microtron and a new approach for beam quality determination," Med. Phys. 20, 143-149 (1993).
15. M. Karlsson, H. Nyström, and H. Svensson, "Electron beam characteristics of the 50-MeV racetrack microtron," Med. Phys. 19, 307-315 (1992)
16. A. Eklöf, A. Ahnesjö, and A. Brahme, "Photon beam energy deposition kernels for inverse radiotherapy planning," Acta Oncol. 29, 447-454 (1990).
17. A Brahme and P. Andreo, "Dosimetry and quality specification of high energy photon beams," Acta Radiol : Oncol. 25, 213-223 (1986).