Figure 4
Temperature distribution in a 3000 µm-thick PMMA sheet during X-ray exposure with the 1.5 GeV operation. (a) Under 10 kPa He atmosphere vacuum without scanning; (b) under 40 kPa He atmosphere vacuum without scanning; (c) in vacuum without scanning; (d) under 10 kPa He atmosphere with 5 mm s−1 scanning; (e) under 40 kPa He atmosphere with 5 mm s−1 scanning. |