Evaluation of the new-generation RCA 8854 photomultiplier
Abstract
Characteristics were measured for a 114 mm diameter photomultiplier. The first dynode of this photomultiplier has a cesium activated, gallium phosphide secondary emitting surface. Some typical photomultiplier characteristics - such as gain, dark current and risetime - are compared with data provided by the manufacturer. Photomultiplier characteristics also measured include pulse height spectrum and time spectrum of afterpulses. In addition, measurements were made of the collection and quantum efficiency uniformity and of the single photoelectron time spread for the full photocathode illumination. Measurement techniques and description of measuring systems are given.
- Publication:
-
Presented at the IEEE Symp. on Nucl. Sci
- Pub Date:
- October 1981
- Bibcode:
- 1981nusc.sympQ..21L
- Keywords:
-
- Cesium;
- Dynodes;
- Gallium Phosphides;
- Photomultiplier Tubes;
- Power Gain;
- Photocathodes;
- Photoelectrons;
- Pulse Amplitude;
- Quantum Efficiency;
- Instrumentation and Photography