Monte Carlo simulated correction factors for machine specific reference field dose calibration and output factor measurement using fixed and iris collimators on the CyberKnife system

Physics in Medicine and Biology

Volumn 57, Issue 12, 2012, Pages 3741-3758

  Francescon, P ^a   Kilby, W ^b   Satariano, N ^a   Cora, S ^a  

^a ULSS6 36100 ^*  (Italy)

^b ACCURAY INCORPORATED   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CORRECTION FACTORS; CYBERKNIFE; DOSE GRADIENTS; EDGE DETECTORS; FIELD SIZE; FLATTENING FILTERS; MC SIMULATION; MICRO-CHAMBERS; MONTE CARLO; MONTE CARLO SIMULATIONS; OUTPUT FACTOR MEASUREMENTS; OUTPUT FACTORS; REFERENCE FIELD;

AGRICULTURE; CALIBRATION; DETECTORS; MICROCHANNELS;

MONTE CARLO METHODS;

ARTICLE; CALIBRATION; METHODOLOGY; MONTE CARLO METHOD; RADIATION DOSE; RADIOMETRY; RADIOSURGERY; STANDARD; UNCERTAINTY;

CALIBRATION; MONTE CARLO METHOD; RADIATION DOSAGE; RADIOMETRY; RADIOSURGERY; REFERENCE STANDARDS; UNCERTAINTY;

EID: 84862001085     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/57/12/3741     Document Type: Article

References (33)

1. Alfonso R et al 2008 A new formalism for reference dosimetry of small and non-standard fields Med. Phys. 35 517986
2. Almond P R, Biggs P J, Coursey B M, Hanson W F, Saiful Huq M, Nath R and Rogers D W O 1999 AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams Med. Phys. 26 184770 (Pubitemid 29442268)
3. Andreo P, Burns D T, Hohlfeld K, Huq M S, Kanai T, Laitano F, Smyth V G and Vynckier S 2000 Absorbed dose determination in external beam radiotherapy: an international code of practice for dosimetry based on standards of absorbed dose to water IAEA Technical Report Series 398(Vienna, Austria)
4. Aspradakis M M, Byrne J P, Palmans H, Conway J, Rosser K, Warrington A P and Duane S 2010 Small field MV photon dosimetry IPEM Report 103 (York, UK)
5. Araki F 2006 Monte Carlo study of a CyberKnife stereotactic radiosurgery system Med. Phys. 33 295563 (Pubitemid 44154569)
6. Bouchard H, Seuntjens J P, Carrier J and Kawrakow I 2011 A Monte Carlo method to evaluate the impact of positioning errors on detector response and quality correction factors in nonstandard beams Phys. Med. Biol. 56 261734
7. Echner G G et al 2009 The design, physical properties and clinical utility of an iris collimator for robotic radiosurgery Phys. Med. Biol. 54 535980
8. Francescon P, Cora S and Cavedon C 2008 Total scatter factors of small beams: a multidetector and Monte Carlo study Med. Phys. 35 50413 (Pubitemid 351190870)
9. Francescon P, Cora S and Cavedon C 2010 Total scatter factors of small beams: a multidetector and Monte Carlo study Med. Phys. 37 947 (erratum)
10. Francescon P, Cora S, Cavedon C and Scalchi P 2009 Application of a Monte Carlo-based method for total scatter factors of small beams to new solid state micro-detectors J. Appl. Clin. Med. Phys. 10 14752
11. Francescon P, Cora S and Satariano N 2011a Calculation of for several detectors and for two linear accelerators using Monte Carlo simulations Med. Phys. 38 651327
12. Francescon P, Kilby W, Satariano N and Cora S 2011b Measurement corrections for output factor measurements of small robotic radiosurgery beams formed by a variable aperture collimator Int Symp. on Standards, Applications and Quality Assurance in Medical Radiation Dosimetry (Vienna, 912 Nov. 2010) pp 18192
13. Huet C, Bassinet C, Derreumaux S, Moignier C, Baumann M, Lacornerie T, Trompier F, Roch P and Clairand I 2011 Output factors of a Cyberknife System: comparison between measurements and Monte Carlo simulations Med. Phys. 38 35256
14. ICRU 1984 Stoping powers for electrons and positrons International Commission on Radiation Units and Measurements (ICRU) Report 37 (Washington, DC, USA)
15. Kawrakow I 2000 Accurate condensed history Monte Carlo simulation of electron transport: I. EGSnrc, the new EGS4 version Med. Phys. 27 48598 (Pubitemid 30171797)
16. Kawrakow I and Rogers D W O 2003 The EGSnrc code system: Monte Carlo simulation of electron and photon transport Technical Report PIRS-701 (4th printing) (National Research Council of Canada, Ottawa, Canada)
17. Kawrakow I, Rogers D W O and Walters B R B 2004 Large efficiency improvements in BEAMnrc using directional bremsstrahlung splitting Med. Phys. 31 288398 (Pubitemid 39431018)
18. Kawachi T, Saitoh H, Inoue M, Katayose T, Myojoyama A and Hatano K 2008 Reference dosimetry condition and beam quality correction factor for CyberKnife beam Med. Phys. 35 45918
19. Kilby W, Dooley J R, Kuduvalli G, Sayeh S and Maurer C R Jr 2010 The CyberKnife robotic radiosurgery system in 2010 Technol. Cancer Res. Treat. 9 43352
20. Le Roy M, de Carlan L, Delaunnay F, Donois M, Fournier P, Ostrowsky A, Vouillaume A and Bordy J M 2011 Assessment of small volume ionization chambers as reference dosimeters in high-energy photon beams Phys. Med. Biol. 56 563750
21. Q factors in megavoltage photon beams Med. Phys. 37 217993
22. 60Co therapy source Med. Phys. 26 2494502
23. Muir B R, McEwen M R and Rogers D W O 2011 Measured and Monte Carlo calculated kQ factors: accuracy and comparison Med. Phys. 38 46009
24. Pantelis E et al 2012 On the output factor measurements of the CyberKnife Iris collimator small fields: experimental determination of the correction factors for microchamber and diode detectors at press
25. Pantelis E, Kilby W, Moutsatsos A, Zourari K, Karaiskos P, Papagiannis P, Antypas C and Hourdakis C 2010a On the implementation of a recently proposed dosimetric formalism to a robotic radiosurgery system Int. Symp. on Standards, Applications and Quality Assurance in Medical Radiation Dosimetry (IDOS) (Vienna, Austria, 912 Nov. 2010) p 61 http://nucleus.iaea.org/HHW/ MedicalPhysics/IDOS/CN182-Book-Text-LQ.pdf
26. Pantelis E, Moutsatsos A, Zourari K, Kilby W, Antypas C, Papagiannis P, Karaiskos P, Georgiou E and Sakelliou L 2010b On the implementation of a recently proposed dosimetric formalism to a robotic radiosurgery system Med. Phys. 37 236979
27. Rogers D W O, Walters B R B and Kawrakow I 2005 BEAMnrc users manual NRC Report PIRS 509(a) (rev. I)
28. Saini A S and Zhu T C 2004 Dose rate and SSD dependence of commercially available diode detectors Med. Phys. 31 91424 (Pubitemid 38508873)
29. Sauer O A 2009 Determination of the quality index (Q) for photon beams at arbitrary field sizes Med. Phys. 36 416872
30. Shi J and Simon W E 2003 Modeling the instantaneous dose rate dependence of radiation diode detectors Med. Phys. 30 250919 (Pubitemid 37129757)
31. Wulff J, Heverhagen J T, Zink K and Kawrakow I 2010 Investigation of systematic uncertainties in Monte Carlo-calculated beam quality correction factors Phys. Med. Biol. 55 448193
32. Wulff J, Zink K and Kawrakow I 2008 Efficiency improvements for ion chamber calculations in high energy photon beams Med. Phys. 35 132836 (Pubitemid 351457500)
33. x and stopping-power ratios for flattening filter free accelerators: a Monte Carlo study Med. Phys. 35 21049 (Pubitemid 351614825)