Pencil kernel correction and residual error estimation for quality-index-based dose calculations

Physics in Medicine and Biology

Volumn 51, Issue 23, 2006, Pages 6245-6262

  Nyholm, Tufve ^a   Olofsson, Jörgen ^a   Ahnesjö, Anders ^a,b,c   Georg, Dietmar ^d   Karlsson, Mikael ^a  

^a UMEÅ UNIVERSITY   (Sweden)

^b Elekta AB   (Sweden)

^c UPPSALA UNIVERSITY   (Sweden)

^d MEDICAL UNIVERSITY OF VIENNA   (Austria)

Author keywords

[No Author keywords available]

Indexed keywords

DOSIMETRY; MATHEMATICAL MODELS; PHOTONS; RANDOM ERRORS;

ERROR ESTIMATION; PENCIL KERNEL MODELS; PHOTON BEAMS;

ERROR ANALYSIS;

ALGORITHM; ARTICLE; ASSAY; DOSE CALCULATION; KERNEL METHOD; MATHEMATICAL MODEL; PHOTON THERAPY; PRIORITY JOURNAL; RANDOM ERROR; SYSTEMATIC ERROR;

EID: 33846866737     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/51/23/021     Document Type: Article

References (15)

1. Ahnesjö A and Andreo P 1989 Determination of effective bremsstrahlung spectra and electron contamination for photon dose calculations Phys. Med. Biol. 34 1451-64
2. Ahnesjö A, Saxner M and Trepp A 1992 A pencil beam model for photon dose calculation Med. Phys. 19 263-73
3. Ahnesjö A and Trepp A 1991 Acquisition of the effective lateral energy fluence distribution for photon beam dose calculations by convolution models Phys. Med. Biol. 36 973-86
4. Ahnesjö A, Weber L, Murman A, Saxner M, Thorslund I and Traneus E 2005 Beam modeling and verification of a photon beam multisource model Med. Phys. 32 1722-37
5. Bjärngard B E and Siddon R L 1982 A note on equivalent circles, squares, and rectangles Med. Phys. 9 258-60
6. Ceberg C P and Bjärngard B E 1996 The effects of divergence and nonuniformity on the x-ray pencil-beam dose kernel Med. Phys. 23 1531-5
7. Ceberg C P, Bjärngard B E and Zhu T C 1996 Experimental determination of the dose kernel in high-energy x-ray beams Med. Phys. 23 505-11
8. Chui C S and Mohan R 1988 Extraction of pencil beam kernels by the deconvolution method Med. Phys. 15 138-44
9. Day M J and Aird E G 1996 The equivalent field method for dose determinations in rectangular fields Br. J. Radiol. 25 (Suppl.) 138-51
10. Nyholm T, Olofsson J, Ahnesjö A and Karlsson M 2006a Photon pencil kernel parameterisation based on beam quality index Radiother. Oncol. 78 347-51
11. Nyholm T, Olofsson J, Ahnesjö A and Karlsson M 2006b Modelling lateral beam quality variations in pencil kernel based photon dose calculations Phys. Med. Biol. 51 4111-8
12. Olofsson J, Georg D and Karlsson M 2003 A widely tested model for head scatter influence on photon beam output Radiother. Oncol. 67 225-38
13. Olofsson J, Nyholm T, Georg D, Ahnesjö A and Karlsson M 2006 Evaluation of uncertainty predictions and dose output for model-based dose calculations for megavoltage photon beams Med. Phys. 33 2548-56
14. Storchi P R, Van Battum L J and Woudstra E 1999 Calculation of a pencil beam kernel from measured photon beam data Phys. Med. Biol. 44 2917-28
15. Sätherberg A 1997 Characterisation of high energy bremstrahlung beams Radiation Physics (Umeå: Umeå University)