抄録
Channel multiplier plates using a lead silicate glass were developed and the gain characteristics were examined, This paper deals with the method of their production in detail ; for example, tubing of micro-capillary, assembling of many channels and hydrogen treatment. The plates are composed of 100μm diameter channels and on the surface of the channels a conducting layer is developed by hydrogen reduction of PbO contained in glass. The total resistance is adjusted to 250MΩ allowing for temperature rise by Joule's heat. The electron gain reaches up to 108 at 3 kV dynode voltage and the background count rate is very low. Pulse height distribution measured at this voltage shows like a gaussian curve, but the distribution is an exponential type at a lower voltage.
