Fig. 12

Before (a, c, e, g) and after (b, d, f, h) laser cleaning of test areas, which received 2, 5, 5 and 10 pulses respectively. Scale bar: 0.5 mm in (a, b, e, g, h), 1.0 mm in (c, d, f)

Before (a, c, e, g) and after (b, d, f, h) laser cleaning of test areas, which received 2, 5, 5 and 10 pulses respectively. Scale bar: 0.5 mm in (a, b, e, g, h), 1.0 mm in (c, d, f)