Preliminary Investigation of Microdosimetric Track Structure Physics Models in Geant4-DNA and RITRACKS

Table 2

Semiempirical parameters used for Seltzer’s ionisation model in [8]. is the number of electrons per orbital, is the ionisation energy of the orbital, is the mean kinetic energy of the target electron in the orbital, and is the expected value of the radius of the th orbital of the water molecule [8]. Orbital diagrams are shown in Figure 2.

	Orbital		(eV)	(eV)	(Å)
1		2	11.50	30	0.833
2		2	11.75	40	0.867
3		2	13.51	50	0.901
4		2	16.0	60	0.906
5		2	539.7	700	0.129