Table 1 Peak dose and full-width at half-maximum (FWHM) obtained from x and y projections of the transverse beam profile at the focus depth, for different beam geometries obtained with the FLUKA MC code.

From: An experimental study of focused very high energy electron beams for radiotherapy

 

Peak dose (Gy) and FWHM (mm)

 

158 MeV, f/11.2

158 MeV, f/12.3

201 MeV, f/18.2

Line focus

13.82 Gy

4.07 Gy

34.65 Gy

Symmetric focus

10.03 Gy

3.03 Gy

11.98 Gy

Collimated beam

2.32 Gy

0.92 Gy

4.21 Gy

FWHMx

3.0 mm

5.6 mm

3.8 mm

FWHMy

2.0 mm

5.9 mm

3.7 mm