Small field dosimetric characterization of a new 160-leaf MLC

Physics in Medicine and Biology

Volumn 58, Issue 20, 2013, Pages 7343-7354

  Cranmer Sargison, G ^a,b   Liu, P Z Y ^c,d   Weston, S ^b,e   Suchowerska, N ^c,d   Thwaites, D I ^b,d  

^a SASKATCHEWAN CANCER AGENCY   (Canada)

^b UNIVERSITY OF LEEDS   (United Kingdom)

^c ROYAL PRINCE ALFRED HOSPITAL   (Australia)

^d UNIVERSITY OF SYDNEY   (Australia)

^e LEEDS TEACHING HOSPITALS NHS TRUST   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COEFFICIENT OF VARIATION; CONFIDENCE INTERVAL; EXPERIMENTAL UNCERTAINTY; FIELD CHARACTERIZATION; MEASUREMENT PRECISION; MEASUREMENT UNCERTAINTY; MULTILEAF COLLIMATORS; POSITIONAL ACCURACY;

DETECTORS; DIODES; DOSIMETERS; LINEAR ACCELERATORS; MEASUREMENTS; SCINTILLATION;

UNCERTAINTY ANALYSIS;

COMPUTER ASSISTED RADIOTHERAPY; DEVICES; RADIOMETRY; ARTICLE; EQUIPMENT;

RADIOMETRY; RADIOTHERAPY, COMPUTER-ASSISTED;

EID: 84885101296     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/58/20/7343     Document Type: Article

References (26)

1. Alfonso R et al 2008 A new formalism for reference dosimetry of small and nonstandard fields Med. Phys. 35 5179-86
2. Boyer A L, Ochran T G, Nyerick C E and Waldron T J 1992 Clinical dosimetry for implementation of a multileaf collimator Phys. Med. Biol. 19 1255-61
3. Cadman P, McNutt T and Bzdusek K 2005 Validation of physics improvements for IMRT with a commercial treatment-planning system J. Appl. Clin. Med. Phys. 6 74-86
4. Chern S, Leavitt D D, Jensen R L and Shrieve D C 2006 Is smaller better? comparison of 3-mm and 5-mm leaf size for stereotactic radiosurgery: a dosimetric study Int. J. Radiat. Oncol. Biol. Phys. 66 S76-81 (Pubitemid 44633555)
5. Cosgrove V P, Jahn U, Pfaender M, Bauer S, Budach V and Eurm R E 1999 Commissioning of a micro multi-leaf collimator and planning system for stereotactic radiosurgery Radiother. Oncol. 50 325-36 (Pubitemid 29207535)
6. Cosgrove V P et al 2009 Physical characterization of a new concept design of an elekta radiation head with integrated 160-leaf multi-leaf collimator [abstract] Int. J. Radiat. Oncol. Biol. Phys. 75 S722-3
7. Cranmer-Sargison G, Weston S, Evans J A, Sidhu N P and Thwaites D I 2011a Implementing a newly proposed Monte Carlo based small field dosimetry formalism for a comprehensive set of diode detectors Med. Phys. 38 6592-602
8. Cranmer-Sargison G, Weston S, Evans J A, Sidhu N P and Thwaites D I 2012 Monte Carlo modelling of diode detectors for small field MV photon dosimetry: detector model simplification and the sensitivity of correction factors to source parameterization Phys. Med. Biol. 57 5141-53
9. Cranmer-Sargison G, Weston S, Sidhu N P and Thwaites D I 2011b Experimental small field 6 MV output ratio analysis for various diode detector and accelerator combinations Radiother. Oncol. 100 429-35
10. Dhabaan A et al 2010 Dosimetric performance of the new high-definition multileaf collimator for intracranial stereotactic radiosurgery J. Appl. Clin. Med. Phys. 11 197-211
11. Francescon P, Cora S and Satariano N 2011 Calculation of for several small detectors and for two linear accelerators using Monte Carlo simulations Med. Phys. 38 6513-27
12. Francescon P, Kilby W, Satariano N and Cora S 2012 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 Phys. Med. Biol. 57 3741-58
13. Griessbach I, Lapp M, Bohsung J, Gademann G and Harder D 2005 Dosimetric characteristics of a new unshielded silicon diode and its application in clinical photon and electron beams Med. Phys. 32 3750-54
14. Hazard L J et al 2009 Conformity of LINAC-based stereotactic radiosurgery using dynamic conformal arcs and micro-multileaf collimator Int. J. Radiat. Oncol. Biol. Phys. 73 562-70
15. Lambert J, Yin Y, McKenzie D R, Law S, Ralston A and Suchowerska N 2010 A prototype scintillation dosimeter customised for small and dynamic megavoltage radiation fields Phys. Med. Biol. 55 1115-26
16. Lambert J, Yin Y, McKenzie D R, Law S and Suchowerska N 2008 Cerenkov-free scintillation dosimetry in external beam radiotherapy with an air core light guide Phys. Med. Biol. 53 3071-80 (Pubitemid 351868624)
17. Laub W U and Wong T 2003 The volume effect of detectors in the dosimetry of small fields used in IMRT Med. Phys. 30 341-7 (Pubitemid 36337100)
18. Liu P Z Y, Suchowerska N, Abolfathi P and McKenzie D R 2012 Real-time scintillation array dosimetry for radiotherapy: the advantages of photomultiplier detectors Med. Phys. 39 1688-96
19. Liu P Z Y, Suchowerska N, Lambert J, Abolfathi P and McKenzie D R 2011 Plastic scintillation dosimetry: comparison of three solutions for the cerenkov challenge Phys. Med. Biol. 56 5805-21
20. McKerracher C and Thwaites D I 2006 Notes on the construction of solid-state detectors Radiother. Oncol. 79 348-51 (Pubitemid 44093763)
21. Monk J E, Perks J R, Doughty D and Plowman P N 2003 Comparison of a Micro-multileaf collimator with a 5-mm-leaf-width collimator for intracranial stereotactic radiotherapy Int. J. Radiat. Oncol. Biol. Phys. 57 1443-49 (Pubitemid 37443987)
22. Mould R F 1998 Introductory Medical Statistic ((Medical Science Series)) 3rd edn (Beograd: Institute of Physics)
23. 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 Med. Phys. 39 4875-85
24. Ralston A, Liu P, Warrener K, McKenzie D and Suchowerska N 2012 Small field diode correction factors derived using an air core fibre optic scintillation dosimeter and EBT2 film Phys. Med. Biol. 57 2587-602
25. Scott A, Kumar S, Nahum A E and Fenwick J D 2012 Characterizing the influence of detector density on dosimeter response in non-equilibrium small photon fields Phys. Med. Biol. 57 4461-76
26. Shaw E et al 1993 Radiation therapy oncology group: radiosurgery quality assurance guidelines Int. J. Radiat. Oncol. Biol. Phys. 27 1231-39 (Pubitemid 23361609)