Implementing a newly proposed Monte Carlo based small field dosimetry formalism for a comprehensive set of diode detectors

Medical Physics

Volumn 38, Issue 12, 2011, Pages 6592-6602

  Cranmer Sargison, G ^a,b   Weston, S ^c   Evans, J A ^b   Sidhu, N P ^d,e   Thwaites, D I ^b,f  

^a SASKATCHEWAN CANCER AGENCY   (Canada)

^b UNIVERSITY OF LEEDS   (United Kingdom)

^c ST JAMES S UNIVERSITY HOSPITAL   (United Kingdom)

^d Saskatoon Cancer Center   (Canada)

^e UNIVERSITY OF SASKATCHEWAN   (Canada)

^f UNIVERSITY OF SYDNEY   (Australia)

Author keywords

diode detector; dosimetry; Monte Carlo; small field

Indexed keywords

DOSIMETRY; LINEAR ACCELERATORS; MONTE CARLO METHODS;

CORRECTION FACTORS; DETECTOR MODELING; DIODE DETECTORS; SMALL FIELD; SMALL FIELD SIZE; SOURCE PARAMETERS; STATISTICAL VARIATIONS; SURROUNDING MATERIALS;

DIODES;

EID: 82755181817     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.3658572     Document Type: Article

References (32)

1. I.J. Das, G. X. Ding, and A. Ahnesjo, Small fields: Nonequilibrium radiation dosimetry., Med. Phys. 35 (1), 206-215 (2008). 10.1118/1.2815356
2. M. Heydarian, P. W. Hoban, and A. H. Beddoe, A comparison of dosimetry techniques in stereotactic radiosurgery., Phys. Med. Biol. 41 (1), 93-110 (1996). 10.1088/0031-9155/41/1/008 (Pubitemid 26034227)
3. C. McKerracher and D. I. Thwaites, Head scatter factors for small MV photon fields. Part I: A comparison of phantom types and methodologies., Radiother. Oncol. 85 (2), 277-285 (2007). 10.1016/j.radonc.2007.09.005 (Pubitemid 350161010)
4. C. McKerracher and D. I. Thwaites, Head scatter factors for small MV photon fields. Part II: The effects of source size and detector., Radiother. Oncol. 85 (2), 286-291 (2007). 10.1016/j.radonc.2007.09.006 (Pubitemid 350161011)
5. C. McKerracher and D. I. Thwaites, Phantom scatter factors for small MV photon fields., Radiother. Oncol. 86 (2), 272-275 (2008). 10.1016/j.radonc.2007. 10.040 (Pubitemid 351215202)
6. O. A. Sauer and J. Wilbert, Measurement of output factors for small photon fields., Med. Phys. 34 (6), 1983-1988 (2007). 10.1118/1.2734383 (Pubitemid 47055733)
7. F. Verhaegen, I. J. Das, and H. Palmans, Monte Carlo dosimetry study of a 6 MV stereotactic radiosurgery unit., Phys. Med. Biol. 43 (10), 2755-2768 (1998). 10.1088/0031-9155/43/10/006 (Pubitemid 28474182)
8. A. Scott, A. E. Nahum, and J. D. Fenwich, Using a Monte Carlo model to predict dosimetric properties of small radiotherapy photon fields., Med. Phys. 35 (10), 4671-4684 (2008). 10.1118/1.2975223
9. A. Scott, A. E. Nahum, and J. D. Fenwich, Monte Carlo modeling of small photon fields: Quantifying the impact of focal spot size on source occlusion and output factors, and exploring miniphantom design for small-field measurements., Med. Phys. 36 (7) 3132-3144 (2009). 10.1118/1.3152866
10. P. Francescon, S. Cora, and C. Cavedon, Total scatter factors of small beams: A multidetector and Monte Carlo study., Med. Phys. 35 (2), 504-513 (2008). 10.1118/1.2828195 (Pubitemid 351190870)
11. P. Francescon, S. Cora, C. Cavedon, and P. Scalchi, Application of a Monte Carlo-based method for total scatter factors of small beams to a new solid state micro-detectors., Appl. J. Clin. Med. Phys. 10 (1), 147-152 (2009).
12. R. Alfonso, P. Andreo, R. Capote, H. M. Saiful, W. Kilby, R. Kjall, T. R. Mackie, H. Palmans, K. Rosser, J. Seuntjens, W. Ullrich, and S. Vatnitsky, A new formalism for reference dosimetry of small and nonstandard fields., Med. Phys. 35 (12), 5179-5186 (2008). 10.1118/1.3005481
13. B. Hartmann, M. Martisikov, and O. Jkel, Homogeneity of Gafchromic EBT2 film., Med. Phys. 37 (4), 1753-1756 (2010). 10.1118/1.3368601
14. G. Cranmer-Sargison, S. Weston, N. P. Sidhu, and D. I. Thwaites, Experimental small field output factor analysis for various diode detectors and accelerator combinations., Radiother. Oncol. 100 (3), 429-435 (2011).
15. I. J. Chetty, B. Curran, J. E. Cygler, J. J. DeMarco, G. Ezzell, B. A. Faddegon, I. Kawrakow, P. J. Keall, H. Liu, C. M. Ma, D. W. O. Rogers, J. Seuntjens, D. Sheikh-Bagheri, and J. V. Siebers, Report of the AAPM Task Group No. 105: Issues associated with clinical implementation of Monte Carlo-based photon and electron external beam treatment planning., Med. Phys. 34 (12), 4818-4853 (2007). 10.1118/1.2795842 (Pubitemid 350197721)
16. K. Babcock, G. Cranmer-Sargison, and N. P. Sidhu, Increasing the speed of DOSXYZnrc Monte Carlo simulations through the introduction of nonvoxelated geometries., Med. Phys. 35 (2), 633-644 (2008). 10.1118/1.2829874 (Pubitemid 351190883)
17. E. Sham, J. Seuntjens, S. Devic, and E. B. Podgorsak, Influence of focal spot on characteristics of very small diameter radiosurgical beams., Med. Phys. 35 (7), 3317-3330 (2008). 10.1118/1.2936335 (Pubitemid 351904535)
18. I. Kawrakow, D. W. O. Rogers, and B. R. B Walters, Large efficiency improvements in BEAMnrc using directional Bremsstrahlung splitting., Med. Phys. 31 (10), 2883-2898 (2004). 10.1118/1.1788912 (Pubitemid 39431018)
19. K. Bush, S. F. Zavgorodni, and W. A. Beckham, Azimuthal particle redistribution for the reduction of latent phase-space variance in Monte Carlo simulations., Phys. Med. Biol. 52 (14), 4345-4360 (2007). 10.1088/0031-9155/52/ 14/021 (Pubitemid 47134643)
20. C. McKerracher and D. I. Thwaites, Notes on the construction of solid-state detectors., Radiother. Oncol. 79 (3), 348-351 (2006). 10.1016/j.radonc.2006.05.008 (Pubitemid 44093763)
21. I. A. Popescu, C. P. Shaw, Z. F. Zavgorodni, and W. A. Beckham, Absolute dose calculations for Monte Carlo simulations of radiotherapy beams., Phys. Med. Biol. 50 (14), 3375-3392 (2005). 10.1088/0031-9155/50/14/013 (Pubitemid 40991696)
22. J. Wulff, K. Zink, and I. Kawrakow, Efficiency improvements for ion chamber calculations in high energy photon beams., Med. Phys. 35 (4), 1328-1336 (2008). 10.1118/1.2874554 (Pubitemid 351457500)
23. J. G. H. Sutherland and D. W. O. Rogers, Monte Carlo calculated absorbed-dose energy dependence of EBT and EBT2 film., Med. Phys. 37 (3), 1110-1116 (2010). 10.1118/1.3301574
24. N. Sahoo, A. M. Kazi, and M. Hoffman, Semi-empirical procedures for correcting detector size effects on clinical MV beam profiles., Med. Phys. 35 (11), 5124-5133 (2008). 10.1118/1.2989089
25. S. Li, A. Rashid, S He, and D. Djajaputra, A new approach in dose measurement and error analysis for narrow photon beams (beamlets) shaped by different multileaf collimators using a small detector., Med. Phys. 31 (7), 2020-2032 (2004). 10.1118/1.1760191 (Pubitemid 38924822)
26. G. X. Ding, D. M. Duggan, and C. W. Coffey, Commissioning stereotactic radiosurgery beams using both experimental and theoretical methods., Phys. Med. Biol. 51 (10), 2549-2566 (2006). 10.1088/0031-9155/51/10/013
27. I. Griessbach, M. Lapp, G. Gademann, and D. Harder, Dosimetric characteristics of a new unshielded silicon diode and its application in clinical photon and electron beams., Med. Phys. 32 (12), 3750-3754 (2005). 10.1118/1.2124547
28. K. Eklund and A. Ahnesj, Modeling silicon diode dose response factors for small photon fields., Phys. Med. Biol. 55 (24), 7411-7423 (2010). 10.1088/0031-9155/55/24/002
29. F. Haryanto, M. Fippel, W. Laud, O. Dohm, and F. Nsslin, Investigation of photon beam output factors for conformal radiation therapy - Monte Carlo simulations and measurements., Phys. Med. Biol. 47 (11), N133-N143 (2002). 10.1088/0031-9155/47/11/401 (Pubitemid 34662209)
30. F. Araki, Monte Carlo study of a Cyberknife stereotactic radiosurgery system., Med. Phys. 33 (8), 2855-2863 (2006). 10.1118/1.2219774 (Pubitemid 44154569)
31. E. Pantelis, A. Moutsatsos, K. Zourari, W. Kilby, C. Antypas, P. Papagiannis, P. Karaiskos, E. Georgiou, and L. Sakelliou, On the implementation of a recently proposed dosimetric formalism to a robotic radiosurgery system, Med. Phys. 37 (5), 2369-2379 (2011). 10.1118/1.3404289
32. G. X. Ding, Using Monte Carlo simulations to commission photon beam output factors-A feasibility study., Phys. Med. Biol. 48 (23), 3865-3874 (2003). 10.1088/0031-9155/48/23/005 (Pubitemid 37540464)