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. Author manuscript; available in PMC: 2007 Apr 5.
Published in final edited form as: J Phys Chem B. 2005 Sep 8;109(35):16967–16973. doi: 10.1021/jp0518409

Figure 1.

Figure 1

First-derivative, Q-band, EPR spectrum recorded at 4 K of pUC18 plasmid X-irradiated to 2400 Gy at 4 K. The scan is paused at the dashed line, the field sweep center increased by 20 mT, and the signal gain adjusted to record the singlet of the ruby reference at high field. The vertical solid line marks g = 2.0022.