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Volumn 26, Issue 6, 1999, Pages 949-955

Two-effective-source method for the calculation of in-air output at various source-to-detector distances in wedged fields

Author keywords

Effective source; Enhanced dynamic wedge; External wedge; Head scatter; In air output

Indexed keywords

PARTICLE BEAMS; PHOTOELECTRONS; PHOTONS;

EID: 0033026880     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.598487     Document Type: Article
Times cited : (10)

References (27)
  • 3
    • 0025727879 scopus 로고
    • The determination of phantom and collimator scatter components of the output of megavoltage photon beams: Measurement of the collimator scatter part with a beam-coaxial narrow cylindrical phantom
    • J. J. M. van Gasteren, S. Heukelom, H. J. van Kleffens, R. van der Laarse, J. L. M. Venselaar, and C. F. Westermann, "The determination of phantom and collimator scatter components of the output of megavoltage photon beams: measurement of the collimator scatter part with a beam-coaxial narrow cylindrical phantom," Radiother. Oncol. 20, 250-257 (1991).
    • (1991) Radiother. Oncol. , vol.20 , pp. 250-257
    • Van Gasteren, J.J.M.1    Heukelom, S.2    Van Kleffens, H.J.3    Van Der Laarse, R.4    Venselaar, J.L.M.5    Westermann, C.F.6
  • 4
    • 0342977621 scopus 로고    scopus 로고
    • Monitor unit calculation for high energy photon beams
    • ESTRO (European Society for Therapeutic Radiology and Oncology), "Monitor unit calculation for high energy photon beams," Physics for Clinical Radiotherapy Booklet 3, 1997.
    • (1997) Physics for Clinical Radiotherapy Booklet , vol.3
  • 5
    • 0019461282 scopus 로고
    • Characteristics of an 18-MV photon beam from a Therac 20 medical linear accelerator
    • M. S. Patterson and P. C. Shragge, "Characteristics of an 18-MV photon beam from a Therac 20 medical linear accelerator," Med. Phys. 8, 312-318 (1981).
    • (1981) Med. Phys. , vol.8 , pp. 312-318
    • Patterson, M.S.1    Shragge, P.C.2
  • 6
    • 0022471631 scopus 로고
    • Head scatter data for several linear accelerators (4-18 MV)
    • K. R. Kase and G. K. Svensson, "Head scatter data for several linear accelerators (4-18 MV)," Med. Phys. 13, 530-532 (1986).
    • (1986) Med. Phys. , vol.13 , pp. 530-532
    • Kase, K.R.1    Svensson, G.K.2
  • 7
    • 0023221279 scopus 로고
    • The effect of collimator backscatter radiation on photon output of linear accelerators
    • P. H. Huang, J. Chu, and B. E. Bjärngard, "The effect of collimator backscatter radiation on photon output of linear accelerators," Med. Phys. 14, 268-269 (1987).
    • (1987) Med. Phys. , vol.14 , pp. 268-269
    • Huang, P.H.1    Chu, J.2    Bjärngard, B.E.3
  • 8
    • 0023905228 scopus 로고
    • Output factor constituents of a high-energy photon beam
    • G. Luxton and M. A. Astrahan, "Output factor constituents of a high-energy photon beam," Med. Phys. 15, 88-91 (1988).
    • (1988) Med. Phys. , vol.15 , pp. 88-91
    • Luxton, G.1    Astrahan, M.A.2
  • 9
    • 0028129772 scopus 로고
    • A Monte Carlo study of accelerator head scatter
    • E. L. Chaney, T. J. Cullip, and T. A. Gabriel, "A Monte Carlo study of accelerator head scatter," Med. Phys. 21, 1383-1390 (1994).
    • (1994) Med. Phys. , vol.21 , pp. 1383-1390
    • Chaney, E.L.1    Cullip, T.J.2    Gabriel, T.A.3
  • 10
    • 0029077416 scopus 로고
    • The fraction of photons undergoing head scatter in x-ray beams
    • T. C. Zhu and B. E. Bjärngard, "The fraction of photons undergoing head scatter in x-ray beams," Phys. Med. Biol. 40, 1127-1134 (1995).
    • (1995) Phys. Med. Biol. , vol.40 , pp. 1127-1134
    • Zhu, T.C.1    Bjärngard, B.E.2
  • 11
    • 0026697038 scopus 로고
    • Application of the convolution method for calculation of output factors for therapy photon beams
    • A. Ahnesjö, T. Knoos, and A. Montelius, "Application of the convolution method for calculation of output factors for therapy photon beams," Med. Phys. 19, 295-301 (1992).
    • (1992) Med. Phys. , vol.19 , pp. 295-301
    • Ahnesjö, A.1    Knoos, T.2    Montelius, A.3
  • 12
    • 0027966969 scopus 로고
    • Analytic modeling of photon scatter from flattening filters in photon therapy beams
    • A. Ahnesjö, "Analytic modeling of photon scatter from flattening filters in photon therapy beams," Med. Phys. 21, 1227-1235 (1994).
    • (1994) Med. Phys. , vol.21 , pp. 1227-1235
    • Ahnesjö, A.1
  • 13
    • 0026472120 scopus 로고
    • On the field-size dependence of relative output from a linear accelerator
    • P. B. Dunscombe and J. M. Nieminen, "On the field-size dependence of relative output from a linear accelerator," Med. Phys. 19, 1441-1444 (1992).
    • (1992) Med. Phys. , vol.19 , pp. 1441-1444
    • Dunscombe, P.B.1    Nieminen, J.M.2
  • 14
    • 0029900443 scopus 로고    scopus 로고
    • Analytical representation of head scatter factors for shaped photon beams using a two-component x-ray source model
    • M. K. Yu and R. Sloboda, "Analytical representation of head scatter factors for shaped photon beams using a two-component x-ray source model," Med. Phys. 23, 973-984 (1996).
    • (1996) Med. Phys. , vol.23 , pp. 973-984
    • Yu, M.K.1    Sloboda, R.2
  • 15
    • 0031439563 scopus 로고    scopus 로고
    • Clinical implementation of a two-component x-ray source model for calculation of head-scatter factors
    • P. A. Jursinic, "Clinical implementation of a two-component x-ray source model for calculation of head-scatter factors," Med. Phys. 24, 2001-2007 (1997).
    • (1997) Med. Phys. , vol.24 , pp. 2001-2007
    • Jursinic, P.A.1
  • 16
    • 0027752810 scopus 로고
    • X-ray sources of medical linear accelerators: Focal and extra-focal radiation
    • D. A. Jaffray, J. J. Battista, A. Fenster, and P. Munro, "X-ray sources of medical linear accelerators: Focal and extra-focal radiation," Med. Phys. 20, 1417-1427 (1993).
    • (1993) Med. Phys. , vol.20 , pp. 1417-1427
    • Jaffray, D.A.1    Battista, J.J.2    Fenster, A.3    Munro, P.4
  • 17
    • 0029991359 scopus 로고    scopus 로고
    • Flattening-filter-based empirical methods to parameterize the head scatter factor
    • K. L. Lam, M. S. Muthuswamy, and R. K. Ten Haken, "Flattening-filter-based empirical methods to parameterize the head scatter factor," Med. Phys. 23, 343-352 (1996).
    • (1996) Med. Phys. , vol.23 , pp. 343-352
    • Lam, K.L.1    Muthuswamy, M.S.2    Ten Haken, R.K.3
  • 18
    • 0030667163 scopus 로고    scopus 로고
    • An equivalent square field formula for determining head scatter factors of rectangular fields
    • S. Kim, T. C. Zhu, and J. R. Palta, "An equivalent square field formula for determining head scatter factors of rectangular fields," Med. Phys. 24, 1770-1774 (1997).
    • (1997) Med. Phys. , vol.24 , pp. 1770-1774
    • Kim, S.1    Zhu, T.C.2    Palta, J.R.3
  • 19
    • 0031837396 scopus 로고    scopus 로고
    • The equivalent square concept for the head scatter factor based on scatter from flattening filter
    • S. Kim, J. R. Palta, and T. C. Zhu, "The equivalent square concept for the head scatter factor based on scatter from flattening filter," Phys. Med. Biol. 43, 1593-1604 (1998).
    • (1998) Phys. Med. Biol. , vol.43 , pp. 1593-1604
    • Kim, S.1    Palta, J.R.2    Zhu, T.C.3
  • 20
    • 0026778038 scopus 로고
    • Head-scatter factors and effective x-ray source positions in a 25-MV linear accelerator
    • M. Tatcher and B. Bjärngard, "Head-scatter factors and effective x-ray source positions in a 25-MV linear accelerator," Med. Phys. 19, 685-686 (1992).
    • (1992) Med. Phys. , vol.19 , pp. 685-686
    • Tatcher, M.1    Bjärngard, B.2
  • 21
    • 0027216822 scopus 로고
    • How is photon head scatter in a linear accelerator related to the concept of a virtual source?
    • A. L. McKenzie and P. H. Stevens, "How is photon head scatter in a linear accelerator related to the concept of a virtual source?," Phys. Med. Biol. 38, 1173-1180 (1993).
    • (1993) Phys. Med. Biol. , vol.38 , pp. 1173-1180
    • McKenzie, A.L.1    Stevens, P.H.2
  • 22
    • 0031686706 scopus 로고    scopus 로고
    • A generalized solution for the calculation of in-air output factors in irregular fields
    • S. Kim, J. R. Palta, and T. C. Zhu, "A generalized solution for the calculation of in-air output factors in irregular fields," Med. Phys. 25, 1692-1701 (1998).
    • (1998) Med. Phys. , vol.25 , pp. 1692-1701
    • Kim, S.1    Palta, J.R.2    Zhu, T.C.3
  • 25
    • 0027979228 scopus 로고
    • Wedge factor constituents of high-energy photon beams: Field size and depth dependence
    • S. Heukelom, J. H. Lanson, and B. J. Mijnheer, "Wedge factor constituents of high-energy photon beams: field size and depth dependence," Radiother. Oncol. 30, 66-73 (1994).
    • (1994) Radiother. Oncol. , vol.30 , pp. 66-73
    • Heukelom, S.1    Lanson, J.H.2    Mijnheer, B.J.3
  • 26
    • 0027942288 scopus 로고
    • The effect on wedge factors of scattered radiation from the wedge
    • S. J. Thomas, "The effect on wedge factors of scattered radiation from the wedge," Radiother. Oncol. 32, 271-272 (1994).
    • (1994) Radiother. Oncol. , vol.32 , pp. 271-272
    • Thomas, S.J.1
  • 27
    • 0028049731 scopus 로고
    • Wedge factor constituents of high-energy photon beams: Head and phantom scatter dose components
    • S. Heukelom, J. H. Lanson, and B. J. Mijnheer, "Wedge factor constituents of high-energy photon beams: head and phantom scatter dose components," Radiother. Oncol. 32, 73-83 (1994).
    • (1994) Radiother. Oncol. , vol.32 , pp. 73-83
    • Heukelom, S.1    Lanson, J.H.2    Mijnheer, B.J.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.