1. O. Siegmund1 MCP #168/167 Tests Light transmission #168Photo #168 #168 and #167 have been used as a pair with a biasable gap of 0.6mm. Visually they have one band of dark/bright multi’s but are otherwise free of center spots, banding in the multi’s, and bright dark multi’s.

2. O. Siegmund2 Have done quite a few tests but now starting some comprehensive evaluations, Gap effects, timing, background, imaging etc Photon counting image, Pulse height amplitude distributions, Gap bias ~1000v, anode bias 400v. MCP gapped stack #168/167 Tests

3. O. Siegmund3 Use 5GHz amplifier and 1 GHz scope on XDL anode to see pulse shape Upper amplitude pulses selected to show the ~1 ns pulse width and ~800ps risetime 1000v MCP Gap Bias. Full pulse amplitude/shape, 100v MCP Gap bias. Probably dominated by anode pulse attenuation and dispersion.