Photomultiplier tube
US7855510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2004 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Jun 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J43/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A photomultiplier tube includes: a cathode, a plurality of dynodes, and an electron lens forming electrode. The cathode emits electrons in response to incident light. The plurality of dynodes multiplies electrons emitted from the cathode. The electron lens forming the electrode is disposed in a prescribed position in relation to an edge of a first dynode positioned in a first stage from the cathode and an edge of a second dynode positioned in a second stage from the cathode, and smoothes an equipotential surface in a space between the first dynode and the second dynode along a longitudinal direction of the first dynode. This structure improves time resolution in response to incident light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.