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. Author manuscript; available in PMC: 2009 Jul 17.
Published in final edited form as: Phys Med Biol. 2007 Oct 1;52(20):6073–6091. doi: 10.1088/0031-9155/52/20/001

Table 2.

Delivery parameters for all of the six delivery methods.

Delivery parameter Delivery Method

IMXT-
SAS
IMXT-
HT
IMPT-
DGThalf
IMPT-
DGTfull
IMPT-
SShalf
IMPT-
SSfull
Beamlet/proton spot lateral width/FWHM at isocentre 5 mm 6.25 mm 8 mm FWHM 8 mm FWHM 8 mm FWHM 8 mm FWHM
Number of beam angles 9 51 25 51 5 9
Arc covered by beams (starting at 0°) 360° 360° 180° 360° 180° 360°
Total number of beamlets/beam spots 234 1020 1319 2656 4643 8366