Table 1. Mdc1 kinetics.

Ion	Ions per point	Dose [Gy]	Number of cells	Time lag T0 [s]	Mean recruitment time τ1 [s]
43 MeV C	1	5.2	7	17±2	98±11
20 MeV H	128	4.8	22	73±16	1050±270
20 MeV H	320	12.1	10	80±11	520±150

Mdc1 kinetics after carbon and proton irradiation for U2OS pEGFP-Mdc1 clone F1. Indicated are means and the standard errors of the means of 7–22 cells per sample.