Michael J. Minot Page 1 of 7 MinoTech Engineering Inc. August 27, 2009

Tosoh fused quartz MCP spacer, as received. The part appears to be robust, but should be handled with care, and while wearing latex gloves to avoid fingerprints (which will cause fused quarts to devitrify upon heating).

Michael J. Minot Page 2 of 7 MinoTech Engineering Inc. August 27, 2009

Tosoh fused quartz MCP spacer with cellophane package removed.

The manufacturer cut this MCP spacer from a single sheet of fused quartz using a CO2 laser.

Microscope Image #1 – showing typical quartz axis. 50X magnification, top down lighting, showing width of quartz axis.

36 X 20-microns = 720-microns measured at the top of the bar.

Michael J. Minot Page 3 of 7 MinoTech Engineering Inc. August 27, 2009

Image #2 - 50X magnification, bottom up lighting, showing ‘maximum’ width of quartz axis. 44 X 20-microns = 880-microns measured at the top of the bar.

Michael J. Minot Page 4 of 7 MinoTech Engineering Inc. August 27, 2009

Image #3 - Motic Sterio Microscope - 1X magnification, showing intersection of axis. Markers on the right are a ruler with mm spacing.

Michael J. Minot Page 5 of 7 MinoTech Engineering Inc. August 27, 2009

Image #4 - Motic Sterio Microscope - 0.75X magnification, showing intersection of axis.

Markers on the right are a ruler with mm spacing.

Michael J. Minot Page 6 of 7 MinoTech Engineering Inc. August 27, 2009

Image #5 - 100X magnification, top down lighting,

Dark Field image showing quartz axis, with rough surface (presumably ground) with smooth edges as would result from the laser melting.

No cracks or fractures are visible.

Glass is transparent (at the edges).

Michael J. Minot Page 7 of 7 MinoTech Engineering Inc. August 27, 2009