Miniature energy transducer for emitting x-ray radiation including schottky cathode
US6463124B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Dec 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2235/164
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus provides in-situ radiation treating utilizing a miniature energy transducer to produce x-rays, wherein the energy transducer includes a Schottky cathode tip. More specifically, the energy transducer includes a transducer body, an anode provided at a first end of the transducer body, and a cathode provided at a second end of the transducer body opposite the anode. The energy transducer is coupled to an energy source by a flexible insertion device. The energy source provides electrical and/or light signals to the energy transducer via the flexible insertion device. Light transmitted from the energy source to the energy transducer by the flexible insertion device is focused on a Schottky cathode tip of the cathode by the optical fiber provided in the hollow core of the anode. The application of the light signal to the cathode tip results in heating of the tip and along with the electric field generated by the acceleration voltage it leads to electron Schottky emission and electron acceleration towards the anode. In another preferred embodiment, an electrical current, transmitted from the energy source to the energy transducer by the flexible insertion device, is applied t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.