Ion chambers
US3952197A · kind A · utility
5Cited by
1References
11Claims
0Family size
Inventor
Key dates
| Filing date | Feb 14, 1975 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Feb 14, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J47/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Ion chambers adapted for use with radiant energy in the vacuum ultraviolet and X-ray spectral regions are provided wherein the ion repeller and collector electrodes are configured to provide an electric field therebetween which has a non-uniform potential gradient allowing a photon beam to be passed through a region of low field strength. A further aspect of the configuration of the ion repeller and collector electrodes is the elimination of the need for guard rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.