Radiation generating tube and radiation imaging apparatus using the same
US9251995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2012 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/166
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiation generating tube 1 includes: an electron emitting source 3; a target 9 spaced from the electron emitting source 3, for generating radiation 11 responsive to irradiation with an electron beam from the electron emitting source 3; and a tubular shielding member 10 having an electron passing hole 8, wherein the electron passing hole 8 has an electron incident aperture at one end thereof and has a target supporting surface 9b supporting the target 9 at the other end thereof, wherein the target supporting surface 9b is connected through a brazing filler 14 to a periphery of a surface of the target at a side on which the electron is incident, and an opening size of the other end of the electron passing hole 8 is larger than an opening size of the electron incident aperture at the one end thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.