Device for perfecting an ion source in a neutron tube
US5104610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1989 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Oct 4, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J27/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The divergence of the magnetic field for confining the ionized gas (9) in a sealed high-flux neutron tube comprising a Penning-type ion source (1) is increased in the direction of the ion emission zone by influencing the magnet assembly (8) of the ion source. The ion beam extracted from the plasma is accelerated (2) and projected onto a target (4). The geometry and the position of the anode (13) inside the ion source are adapted to the topography of the lines of force in order to ensure minimum interception of the ionizing electrons moving in the structure, which adaptation is achieved notably by using a truncated anode whose generatrices take the shape of the lines of force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.