Skip to main content

Table 13 Comparison of the percentage of lateral dose profile points passing the 1%/1 mm criteria for the two energy FWHM configurations at 0.120 MeV and 0.140 MeV at various scan depths. The initial electron beam energy is fixed at 10.5 MeV, the focal spot FWHM and beam divergence are at default values of 0. The number of histories is 2.5 × 107

From: Linac photon beam fine-tuning in PRIMO using the gamma-index analysis toolkit

Energy FWHM (MeV)Average Dose Uncertainty (%)Passing rates at 1%/1 mm criteria for various depths (%)
2.4 cm5.0 cm10.0 cm20.0 cm30.0 cm
0.1205.959.074.539.878.345.3
0.1405.980.136.614.336.09.9