Device and method for electron beam irradiation
US7348578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Mar 9, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2202/23
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention refers to a device for electron beam irradiation of at least a first side of a web, the device comprising a tunnel through which the web is adapted to pass, said tunnel being provided with a web inlet portion, a web outlet portion and a central portion adapted to receive at least a first electron beam emitter provided with an electron exit window through which electrons are adapted to be emitted into the tunnel. The tunnel is being angled at least two locations in each of the inlet portion and the outlet portion in such a way that any X-ray formed during the electron beam irradiation of the web is forced to hit the tunnel wall at least twice before exiting the tunnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.