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IGRT QA/QC Working group report

放射線治療かたろう会

1

Supplement - Imaging Dose -

2

IGRT QA/QC Working group report Supplement - Imaging Dose -

2016

IGRT QA/QC WG Supplement - Imaging Dose –

NTT

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120kV

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µ en�ρ 4.33 mGy 28.41 mGy

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difference -3.23 % -1.34 %

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1�� IGRT-QA/QC Working group report,2012 2�� QA/QC . ( :IGRT

). 2010; 30: 49-53. 3�� Palm A, Nilsson E and Herrnsdorf Lars Herrnsdorf , Absorbed dose and dose rate using the Varian OBI 1.3

and 1.4 CBCT system. Journal of Applied Clinical Medical Physics, 11, 229-40,2010 4�� , (25)������ ,2006 5�� http://physics.nist.gov/PhysRefData/XrayMassCoef/ElemTab/z13.html 2017 3 25 6�� C.M. Ma, C. W. Coffey, L. A. DeWerd, C. Liu, R. Nath, S. M. Seltzer, J. P. Seuntjens, “AAPM protocol for

40-300 kV x-ray beam dosimetry in radiotherapy and radiobiology”, Med. Phys. 28, 868-893 ,2001. 7�� Grosswendt, B., Dependence of the photon backscatter factor for water on source-to-phantom distance and

irradiation field size. Phys. Med. Biol. 35, 1233-1245,1990 8�� Klevenhagen, S.C., Experimentally determined backscatter factors for X-rays generated at voltages between

16 and 140 kV. Phys. Med. Biol. 34, 1871-1882.,1989. 9�� , X 57(12),1503-1510,2001 10�� ����� (J-RIME)/ ± ,2015.6.7 11�� Varian medical systems, Dose in CBCT – OBI Advanced Imaging. On-Board Imager® (OBI) kV imaging

system v1.4 and v1.5. Revision 1.3. Jun , 2012. 12�� Varian Customer Technical Bulletin OB-885 Rev A 13�� , (33)

,2015