Two microchannel-plate photomultipliers with subnanosecond characteristics
Abstract
The design and performance of two channel-plate photomultiplier tubes, PM 137 and PM HR 305, are described that are used for time measurements of ultra-short duration phenomena. The PM 137 contains two microchannel plates in cascade and produces a high gain; the PM HR 305 contains a single plate and gives a fast pulse response. The time resolution of the PM 137 is better than 0.1 ns. The sensitivity to external magnetic fields is low. Ion feedback in the channels is reduced by using a plate with curved channels in the PM 137 and by coating the plates in the PM HR 305 with a thin layer of Al2O3. The tubes can be used in high-energy nuclear physics and in plasma physics.
- Publication:
-
Philips Technical Review
- Pub Date:
- 1979
- Bibcode:
- 1979PhiTR..38..240B
- Keywords:
-
- Microchannels;
- Performance Tests;
- Photomultiplier Tubes;
- Picosecond Pulses;
- Pulse Duration;
- Cascade Control;
- Design Analysis;
- Flat Plates;
- High Gain;
- Nuclear Research;
- Plasma Diagnostics;
- Time Measurement;
- Time Response;
- Electronics and Electrical Engineering