. 2019 Jul 25;9:10837. doi: 10.1038/s41598-019-46630-w

Table 1.

Peak (D_max) positions and FWHM of the volumetric elements for 200 MeV and 2 GeV electron beams focused at 15 cm from the entrance of the water phantom for f/11.5-f/1.2.

f-number	200 MeV			2 GeV
f-number	FWHM_z (cm)	FWHM_x (cm)	Peak position (cm)	FWHM_z (cm)	FWHM_x (cm)	Peak position (cm)
1.2	1.26	0.97	14.58	0.33	0.32	14.71
1.4	1.37	0.93	14.55	0.35	0.31	14.71
1.6	1.50	0.89	14.51	0.41	0.29	14.71
1.9	1.67	0.86	14.45	0.48	0.28	14.71
2.3	1.91	0.82	14.36	0.58	0.27	14.71
2.8	2.27	0.79	14.20	0.73	0.26	14.72
3.8	2.84	0.77	13.87	0.98	0.26	14.73
5.7	3.82	0.72	13.06	1.47	0.25	14.75
11.5	5.57	0.61	10.50	2.97	0.25	14.85