I251Y-R C Expt 06035 –(06/01/2010) viewed by camera beam Viewer 0 mm (CH2)n 100 um 50 mm (CD2)n 2 layers 100 mm (CD2)n 1 layer 150 mm Beamspot 1 mm from center of target Blank 200 mm Carbon 17 mg/cm2 239.6 mm 264.5 mm Carbon + Mask Mask 1/4” beam 3/4”x3/4” C 1 cm 1/4” Hole size: 2mm
Gray: imaginary lines connecting holes Expt 06035 –(06/01/2010) Mylar foil=1.9um Foil MCP 0 I250X-R Mask 143 mm 219.0 mm As viewed by telescope Red: center Gray: imaginary lines connecting holes Foil Al mylar MCP 1 I250Y-R 89 mm Foil Carbon(45 ug) 165 mm Mask 241 mm As viewed by telescope