What are the advantages of small pore MCPs?
A.- We are increasingly supplying smaller pore Photonis microchannelplates. Photonis’s five micron pore (6 micron center-to-centre) MCPs have been available for some time in the 18mm active diameter MCPs and have recently become available in 25mm active diameter MCPs. Users of these five micron MCPs have demonstrated greater than 71 line-pairs per millimetre (14 micron) resolution in image intensifiers. These MCPs also have the advantage of a faster timing response compared to larger pore MCPs because of their reduced thickness, yielding sharper pulses with faster rise times,as well as faster recovery from large signal inputs due to more channels per area, and a larger open area for increased sensitivity.
