Table 1 Treatment plan and delivery details for the different experiments.
experiment | film response/cell samples | pin-point ionization chamber array | DDD |
|---|---|---|---|
target volume [WxHxD mm3] | 28 × 45 × 23 | 36 × 20 × 50 | single beam |
depth range [MeV/u] | 265 - 299 | 267 - 330 | 400 |
number of iso-energy slices | 18 | 21 | - |
number of raster points | 3444 | 5946 | 1 |
grid spacing [mm] | 2.5 | 2 | - |
scan path | up-down | up-down | - |
beam spot FWHM [mm] | 7.5 | 5.6 | 2.3 |
peak-to-peak amplitudelateral/radiological depth [mm/mm water] | 40/15.2 | 30/11.4 | 40/15.2 |
motion period [s] | ~ 3 | ~ 3.4 | ~ 3 |
target dose | 6 GyE (3.3 Gy at target center) | 2 Gy | - |
irradiation time [s] | ~ 140 | ~ 150 | - |