Inonization chamber, measuring sequence for the activity of a gas emitting radiation &bgr; and method using same
US6734433B1 · kind B1 · utility
6Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J47/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention concerns an ionization chamber cylindrical in shape comprising an anode (35) formed by a central rod in current-carrying material and a cathode (38) in current-carrying material around the said anode, both connected to two elements of a mechanical base of the said chamber in which two cylindrical end shields (36, 37) in non-magnetic and insulating material are centred on the anode (35) and arranged at right angles to this at both ends, the cathode (38) being made up of a spooled wire on the outer rim of these two end shields (36, 37).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.