Electron source, and electron gun and device using same
WO2025069589A1 Publication Date: 2025-04-03HAMAMATSU PHOTONICS KK
5 Cites 0 Cited by
Patent Information
- Application Number
- PCT/JP2024/021521
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-27
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-03
AI Technical Summary
Technical Problem
The temperature stability of the electron emitting part of the existing electron source is insufficient during heating, resulting in unstable electron beam emission.
Method used
The electron-emitting portion containing erbium and rare earth element alloy is used to improve temperature stability by coating the erbium and metal on the connecting portion and reducing the concentration of rare earth element in the closed portion.
Benefits of technology
It effectively improves the temperature stability of the electron emitting part during heating, reduces fluctuations in the emission amount of electron beam, and extends the service life of the electron source.
✦ Generated by Eureka AI based on patent content.
Abstract
This electron source comprises: an electron emission part that contains an alloy of iridium and a rare earth element; a support part that is formed from a metal; and a joining part that joins the electron emission part and the support part. The joining part includes a coating layer containing iridium and the metal in the support part. The coating layer contains iridium and the metal in the support part.
Need to check novelty before this filing date? Find Prior Art