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Volumn 35, Issue 4, 2008, Pages 1328-1336

Efficiency improvements for ion chamber calculations in high energy photon beams

Author keywords

EGSnrc; Ionization chamber; Monte Carlo; Perturbation factor; Variance reduction techniques

Indexed keywords

AGRICULTURE; EFFICIENCY; IONIZATION CHAMBERS; IONS; PARTICLE BEAMS; PHASE SPACE METHODS; PHOTOELECTRONS; PHOTONS;

EID: 41449107480     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2874554     Document Type: Article
Times cited : (186)

References (34)
  • 1
    • 0032874911 scopus 로고    scopus 로고
    • AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams
    • 0094-2405 10.1118/1.598691
    • P. R. Almond, P. J. Biggs, B. M. Coursey, W. F. Hanson, M. S. Huq, R. Nath, and D. W. O. Rogers, " AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams., " Med. Phys. 0094-2405 10.1118/1.598691 26, 1847-1870 (1999).
    • (1999) Med. Phys. , vol.26 , pp. 1847-1870
    • Almond, P.R.1    Biggs, P.J.2    Coursey, B.M.3    Hanson, W.F.4    Huq, M.S.5    Nath, R.6    Rogers, D.W.O.7
  • 2
    • 41449101129 scopus 로고    scopus 로고
    • International Atomic Energy Agency
    • P. Andreo, D. T. Burns, K. Hohlfeld, M. Huq, T. Kanai, F. Laitano, V. Smyth, and S. Vynckier, TRS-398 Absorbed Dose Determination in External Beam Radiotherapy: An International Code of Practice for Dosimetry based on Standards of Absorbed Dose to Water, International Atomic Energy Agency, 2001.
    • (2001)
    • Andreo, P.1    Burns, D.T.2    Hohlfeld, K.3    Huq, M.4    Kanai, T.5    Laitano, F.6    Smyth, V.7    Vynckier, S.8
  • 3
    • 11244299745 scopus 로고    scopus 로고
    • CSnrc: Correlated sampling Monte Carlo calculations using EGSnrc
    • 0094-2405 10.1118/1.1813891
    • L. A. Buckley, I. Kawrakow, and D. W. O. Rogers, " CSnrc: Correlated sampling Monte Carlo calculations using EGSnrc., " Med. Phys. 0094-2405 10.1118/1.1813891 31, 3425-3435 (2004).
    • (2004) Med. Phys. , vol.31 , pp. 3425-3435
    • Buckley, L.A.1    Kawrakow, I.2    Rogers, D.W.O.3
  • 4
    • 33744820051 scopus 로고    scopus 로고
    • Wall correction factors, Pwall, for parallel-plate ionization chambers
    • 0094-2405 10.1118/1.2199988
    • L. A. Buckley and D. W. O. Rogers, " Wall correction factors, Pwall, for parallel-plate ionization chambers., " Med. Phys. 0094-2405 10.1118/1.2199988 33, 1788-1796 (2006).
    • (2006) Med. Phys. , vol.33 , pp. 1788-1796
    • Buckley, L.A.1    Rogers, D.W.O.2
  • 5
    • 31844450298 scopus 로고    scopus 로고
    • Wall correction factors, Pwall, for thimble ionization chambers
    • 0094-2405 10.1118/1.2161403
    • L. A. Buckley and D. W. O. Rogers, " Wall correction factors, Pwall, for thimble ionization chambers., " Med. Phys. 0094-2405 10.1118/1.2161403 33, 455-464 (2006).
    • (2006) Med. Phys. , vol.33 , pp. 455-464
    • Buckley, L.A.1    Rogers, D.W.O.2
  • 6
    • 0035064042 scopus 로고    scopus 로고
    • Monte Carlo simulation of electron beams from an accelerator head using PENELOPE
    • 0031-9155 10.1088/0031-9155/46/4/318
    • J. Sempau, A. Sanchez-Reyes, F. Salvat, and H. O. ben Tahar, S. B. Jiang, and J. M. Fernndez-Varea, " Monte Carlo simulation of electron beams from an accelerator head using PENELOPE., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/46/4/318 46, 1163-1186 (2001).
    • (2001) Phys. Med. Biol. , vol.46 , pp. 1163-1186
    • Sempau, J.1    Sanchez-Reyes, A.2    Salvat, F.3    Ben Tahar, H.O.4    Jiang, S.B.5    Fernndez-Varea, J.M.6
  • 7
    • 33744828302 scopus 로고    scopus 로고
    • On the effective point of measurement in megavoltage photon beams
    • 0094-2405 10.1118/1.2201147
    • I. Kawrakow, " On the effective point of measurement in megavoltage photon beams., " Med. Phys. 0094-2405 10.1118/1.2201147 33, 1829-1839 (2006).
    • (2006) Med. Phys. , vol.33 , pp. 1829-1839
    • Kawrakow, I.1
  • 8
    • 12844269162 scopus 로고    scopus 로고
    • Validation of Monte Carlo calculated surface doses for megavoltage photon beams
    • 0094-2405 10.1118/1.1829401
    • W. Abdel-Rahman, J. P. Seuntjens, F. Verhaegen, F. Deblois, and E. B. Podgorsak, " Validation of Monte Carlo calculated surface doses for megavoltage photon beams., " Med. Phys. 0094-2405 10.1118/1.1829401 32, 286-298 (2005).
    • (2005) Med. Phys. , vol.32 , pp. 286-298
    • Abdel-Rahman, W.1    Seuntjens, J.P.2    Verhaegen, F.3    Deblois, F.4    Podgorsak, E.B.5
  • 9
    • 33644664647 scopus 로고    scopus 로고
    • Monte Carlo correction factors for a Farmer 0.6 cm3 ion chamber dose measurement in the build-up region of the 6 MV clinical beam
    • 0031-9155 10.1088/0031-9155/51/6/011
    • J. Pena, F. Sánchez-Doblado, R. Capote, J. A. Terrón, and F. Gómez, " Monte Carlo correction factors for a Farmer 0.6 cm3 ion chamber dose measurement in the build-up region of the 6 MV clinical beam., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/51/6/011 51, 1523-1532 (2006).
    • (2006) Phys. Med. Biol. , vol.51 , pp. 1523-1532
    • Pena, J.1    Sánchez-Doblado, F.2    Capote, R.3    Terrón, J.A.4    Gómez, F.5
  • 10
    • 4644300643 scopus 로고    scopus 로고
    • An EGSnrc Monte Carlo study of the microionization chamber for reference dosimetry of narrow irregular IMRT beamlets
    • 0094-2405 10.1118/1.1767691
    • R. Capote, F. Sánchez-Doblado, A. Leal, J. I. Lagares, R. Arráns, and G. H. Hartmann, " An EGSnrc Monte Carlo study of the microionization chamber for reference dosimetry of narrow irregular IMRT beamlets., " Med. Phys. 0094-2405 10.1118/1.1767691 31, 2416-2422 (2004).
    • (2004) Med. Phys. , vol.31 , pp. 2416-2422
    • Capote, R.1    Sánchez-Doblado, F.2    Leal, A.3    Lagares, J.I.4    Arráns, R.5    Hartmann, G.H.6
  • 11
    • 17144381705 scopus 로고    scopus 로고
    • Off-axis chamber response in the depth of photon dose maximum
    • 0031-9155 10.1088/0031-9155/50/7/008
    • O. S. Dohm, M. Fippel, G. Christ, and F. Nüsslin, " Off-axis chamber response in the depth of photon dose maximum., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/50/7/008 50, 1449-1457 (2005).
    • (2005) Phys. Med. Biol. , vol.50 , pp. 1449-1457
    • Dohm, O.S.1    Fippel, M.2    Christ, G.3    Nüsslin, F.4
  • 12
    • 40049109564 scopus 로고    scopus 로고
    • The effective point of measurement of ionization chambers and the build-up anomaly in mV x-ray beams
    • 0094-2405 10.1118/1.2839329
    • M. R. McEwen, I. Kawrakow, and C. K. Ross, " The effective point of measurement of ionization chambers and the build-up anomaly in mV x-ray beams., " Med. Phys. 0094-2405 10.1118/1.2839329 35, 950-958 (2008).
    • (2008) Med. Phys. , vol.35 , pp. 950-958
    • McEwen, M.R.1    Kawrakow, I.2    Ross, C.K.3
  • 13
    • 34147171479 scopus 로고    scopus 로고
    • On the discrepancies between Monte Carlo dose calculations and measurements for the 18 MV varian photon beam
    • 0094-2405 10.1118/1.2712414
    • O. Chibani and C. M. Ma, " On the discrepancies between Monte Carlo dose calculations and measurements for the 18 MV varian photon beam., " Med. Phys. 0094-2405 10.1118/1.2712414 34, 1206-1216 (2007).
    • (2007) Med. Phys. , vol.34 , pp. 1206-1216
    • Chibani, O.1    Ma, C.M.2
  • 14
    • 85024822508 scopus 로고    scopus 로고
    • Influence of ion chamber response on in-air profile measurements in megavoltage photon beams
    • 0094-2405 10.1118/1.2011090
    • E. Tonkopi, M. R. McEwen, B. R. B. Walters, and I. Kawrakow, " Influence of ion chamber response on in-air profile measurements in megavoltage photon beams., " Med. Phys. 0094-2405 10.1118/1.2011090 32, 2918-2927 (2005).
    • (2005) Med. Phys. , vol.32 , pp. 2918-2927
    • Tonkopi, E.1    McEwen, M.R.2    Walters, B.R.B.3    Kawrakow, I.4
  • 15
    • 0036130664 scopus 로고    scopus 로고
    • Sensitivity of megavoltage photon beam Monte Carlo simulations to electron beam and other parameters
    • 0094-2405 10.1118/1.1446109
    • D. Sheikh-Bagheri and D. W. O. Rogers, " Sensitivity of megavoltage photon beam Monte Carlo simulations to electron beam and other parameters., " Med. Phys. 0094-2405 10.1118/1.1446109 29, 379-390 (2002).
    • (2002) Med. Phys. , vol.29 , pp. 379-390
    • Sheikh-Bagheri, D.1    Rogers, D.W.O.2
  • 16
    • 0034104708 scopus 로고    scopus 로고
    • Accurate condensed history Monte Carlo simulation of electron transport. I. EGSnrc, the new EGS4 version
    • 0094-2405 10.1118/1.598917
    • I. Kawrakow, " Accurate condensed history Monte Carlo simulation of electron transport. I. EGSnrc, the new EGS4 version., " Med. Phys. 0094-2405 10.1118/1.598917 27, 485-498 (2000).
    • (2000) Med. Phys. , vol.27 , pp. 485-498
    • Kawrakow, I.1
  • 17
    • 85027219739 scopus 로고    scopus 로고
    • NRCC Report No. PIRS-701, National Research Council of Canada
    • I. Kawrakow and D. W. O. Rogers, The EGSnrc Code System: Monte Carlo Simulation of Electron and Photon Transport; NRCC Report No. PIRS-701, National Research Council of Canada, 2006.
    • (2006)
    • Kawrakow, I.1    Rogers, D.W.O.2
  • 18
    • 85027222265 scopus 로고    scopus 로고
    • PIRS-898, National Research Council of Canada
    • I. Kawrakow, EGSnrc C++ class library, Report No. PIRS-898, National Research Council of Canada, 2006.
    • (2006)
    • Kawrakow, I.1
  • 19
    • 0034023628 scopus 로고    scopus 로고
    • Accurate condensed history Monte Carlo simulation of electron transport. II. Application to ion chamber response simulations
    • 0094-2405 10.1118/1.598918
    • I. Kawrakow, " Accurate condensed history Monte Carlo simulation of electron transport. II. Application to ion chamber response simulations., " Med. Phys. 0094-2405 10.1118/1.598918 27, 499-513 (2000).
    • (2000) Med. Phys. , vol.27 , pp. 499-513
    • Kawrakow, I.1
  • 20
    • 0033861873 scopus 로고    scopus 로고
    • Monte Carlo study of correction factors for Spencer-Attix cavity theory at photon energies at or above 100 keV
    • 0094-2405 10.1118/1.1287054
    • J. Borg, I. Kawrakow, D. W. O. Rogers, and J. P. Seuntjens, " Monte Carlo study of correction factors for Spencer-Attix cavity theory at photon energies at or above 100 keV., " Med. Phys. 0094-2405 10.1118/1.1287054 27, 1804-1813 (2000).
    • (2000) Med. Phys. , vol.27 , pp. 1804-1813
    • Borg, J.1    Kawrakow, I.2    Rogers, D.W.O.3    Seuntjens, J.P.4
  • 22
    • 3242754428 scopus 로고    scopus 로고
    • Evidence for using Monte Carlo calculated wall attenuation and scatter correction factors for three styles of graphite-walled ion chambers
    • 0031-9155 10.1088/0031-9155/49/12/002
    • J. P. McCaffrey, E. Mainegra-Hing, I. Kawrakow, K. R. Shortt, and D. W. O. Rogers, " Evidence for using Monte Carlo calculated wall attenuation and scatter correction factors for three styles of graphite-walled ion chambers., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/49/12/002 49, 2491-2501 (2004).
    • (2004) Phys. Med. Biol. , vol.49 , pp. 2491-2501
    • McCaffrey, J.P.1    Mainegra-Hing, E.2    Kawrakow, I.3    Shortt, K.R.4    Rogers, D.W.O.5
  • 23
    • 85024810643 scopus 로고    scopus 로고
    • Monte Carlo modeling of the response of NRC's S 90 r/ Y 90 primary beta standard
    • 0094-2405 10.1118/1.1997347
    • T. P. Selvam, P. R. B. Saull, and D. W. O. Rogers, " Monte Carlo modeling of the response of NRC's S 90 r/ Y 90 primary beta standard., " Med. Phys. 0094-2405 10.1118/1.1997347 32, 3084-3094 (2005).
    • (2005) Med. Phys. , vol.32 , pp. 3084-3094
    • Selvam, T.P.1    Saull, P.R.B.2    Rogers, D.W.O.3
  • 24
    • 36649023682 scopus 로고    scopus 로고
    • An experimental and computational investigation of the standard temperature-pressure correction factor for ion chambers in kilovoltage x rays
    • 0094-2405 10.1118/1.2799580
    • D. J. La Russa, M. R. McEwen, and D. W. O. Rogers, " An experimental and computational investigation of the standard temperature-pressure correction factor for ion chambers in kilovoltage x rays., " Med. Phys. 0094-2405 10.1118/1.2799580 34, 4690-4699 (2007).
    • (2007) Med. Phys. , vol.34 , pp. 4690-4699
    • La Russa, D.J.1    McEwen, M.R.2    Rogers, D.W.O.3
  • 25
    • 0033862407 scopus 로고    scopus 로고
    • Investigation of variance reduction techniques for Monte Carlo photon dose calculation using XVMC
    • 0031-9155 10.1088/0031-9155/45/8/308
    • I. Kawrakow and M. Fippel, " Investigation of variance reduction techniques for Monte Carlo photon dose calculation using XVMC., " Phys. Med. Biol. 0031-9155 10.1088/0031-9155/45/8/308 45, 2163-2183 (2000).
    • (2000) Phys. Med. Biol. , vol.45 , pp. 2163-2183
    • Kawrakow, I.1    Fippel, M.2
  • 27
    • 22544472679 scopus 로고    scopus 로고
    • On the efficiency of photon beam treatment head simulations
    • 0094-2405 10.1118/1.1943808
    • I. Kawrakow, " On the efficiency of photon beam treatment head simulations., " Med. Phys. 0094-2405 10.1118/1.1943808 32, 2320-2326 (2005).
    • (2005) Med. Phys. , vol.32 , pp. 2320-2326
    • Kawrakow, I.1
  • 28
    • 0029035150 scopus 로고
    • BEAM: A Monte Carlo code to simulate radiotherapy treatment units
    • 0094-2405 10.1118/1.597552
    • D. W. Rogers, B. A. Faddegon, G. X. Ding, C. M. Ma, J. We, and T. R. Mackie, " BEAM: A Monte Carlo code to simulate radiotherapy treatment units., " Med. Phys. 0094-2405 10.1118/1.597552 22, 503-524 (1995).
    • (1995) Med. Phys. , vol.22 , pp. 503-524
    • Rogers, D.W.1    Faddegon, B.A.2    Ding, G.X.3    Ma, C.M.4    We, J.5    MacKie, T.R.6
  • 30
    • 33746608072 scopus 로고    scopus 로고
    • Efficient photon beam dose calculations using DOSXYZnrc with BEAMnrc
    • 0094-2405 10.1118/1.2219778
    • I. Kawrakow and B. R. B. Walters, " Efficient photon beam dose calculations using DOSXYZnrc with BEAMnrc., " Med. Phys. 0094-2405 10.1118/1.2219778 33, 3046-3056 (2006).
    • (2006) Med. Phys. , vol.33 , pp. 3046-3056
    • Kawrakow, I.1    Walters, B.R.B.2
  • 31
    • 0027250302 scopus 로고
    • Calculation of absorbed dose ratios using correlated Monte Carlo sampling
    • 0094-2405 10.1118/1.597163
    • C. M. Ma and A. E. Nahum, " Calculation of absorbed dose ratios using correlated Monte Carlo sampling., " Med. Phys. 0094-2405 10.1118/1.597163 20, 1189-1199 (1993).
    • (1993) Med. Phys. , vol.20 , pp. 1189-1199
    • Ma, C.M.1    Nahum, A.E.2
  • 32
    • 0021849353 scopus 로고
    • Energy and angular distributions of photons from medical linear accelerators
    • 0094-2405 10.1118/1.595680
    • R. Mohan, C. Chui, and L. Lidofsky, " Energy and angular distributions of photons from medical linear accelerators., " Med. Phys. 0094-2405 10.1118/1.595680 12, 592-597 (1985).
    • (1985) Med. Phys. , vol.12 , pp. 592-597
    • Mohan, R.1    Chui, C.2    Lidofsky, L.3
  • 33
    • 0032717811 scopus 로고    scopus 로고
    • Monte Carlo simulation of a typical C 60 o therapy source
    • 0094-2405 10.1118/1.598770
    • G. M. Mora, A. Maio, and D. W. O. Rogers, " Monte Carlo simulation of a typical C 60 o therapy source., " Med. Phys. 0094-2405 10.1118/1.598770 26, 2494-2502 (1999).
    • (1999) Med. Phys. , vol.26 , pp. 2494-2502
    • Mora, G.M.1    Maio, A.2    Rogers, D.W.O.3
  • 34
    • 7244223252 scopus 로고    scopus 로고
    • Large efficiency improvements in BEAMnrc using directional bremsstrahlung splitting
    • 0094-2405 10.1118/1.1788912
    • I. Kawrakow, D. W. O. Rogers, and B. R. B. Walters, " Large efficiency improvements in BEAMnrc using directional bremsstrahlung splitting., " Med. Phys. 0094-2405 10.1118/1.1788912 31, 2883-2898 (2004).
    • (2004) Med. Phys. , vol.31 , pp. 2883-2898
    • Kawrakow, I.1    Rogers, D.W.O.2    Walters, B.R.B.3


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