Method of and apparatus for shielding inert-zone electron irradiation of moving web materials
US4252413A · kind A · utility
21Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1978 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Oct 5, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K5/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This disclosure is concerned with novel techniques for shielding electron-produced scattered radiation in systems wherein a web or sheet is passed longitudinally through an electron irradiation processing region or zone, through the use of a shielded enclosure comprising longitudinally extending shielded-wall collimator slots operating in conjunction with cavity shield traps and critical angles of web-guiding inlet and outlet feed that insure minimal irradiation escape while providing a minimal volume for oxygen-limiting in the irradiation processing zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.