Field-emitting structures intended for a miniature X-ray source
| Autor: | Bertil Hök, Leif Smith, Pelle Rangsten, Carolina Ribbing, Carola Strandman |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
business.industry Metals and Alloys X-ray Diamond Electron engineering.material Condensed Matter Physics Cathode Surfaces Coatings and Films Electronic Optical and Magnetic Materials Anode law.invention Field electron emission Optics law Electrode engineering Electrical and Electronic Engineering business Instrumentation Voltage |
| Zdroj: | Sensors and Actuators A: Physical. 82:24-29 |
| ISSN: | 0924-4247 |
| DOI: | 10.1016/s0924-4247(00)00287-9 |
| Popis: | The concept of a miniature X-ray source is presented. The source consists of a micromachined field-emitting cathode and an anode. Electrons emitted from the cathode are accelerated towards and into the anode where their deceleration produces X-rays. The energy of the X-rays is controlled by the voltage applied to the electrodes, and the dose rate by the emission current. A tentative medical application is discussed and candidate field emission structures are investigated. Spectra from different anode materials have been collected using diamond cold cathodes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect