Table 1.

Demographic data of the volunteers and their fit parameters based on α-track frequency.

Volunteer ID	Gender	Age (a)	Slope (mGy−1)	Intercept
TP 1	m	59	0.191 ± 0.042	0.651 ± 0.863
TP 2	f	62	0.239 ± 0.028	0.327 ± 0.975
TP 3	m	22	0.203 ± 0.034	0.057 ± 0.868
TP 4	m	29	0.242 ± 0.036	1.263 ± 0.924
TP 5	f	21	0.240 ± 0.037	−0.061 ± 0.868
TP 6	f	34	0.205 ± 0.024	−0.398 ± 0.781

The slope and the intercept values relate to the number of α-tracks per 100 cells.