安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- Photocathode - Wikipedia
A photocathode is a surface engineered to convert light into electrons using the photoelectric effect Photocathodes are important in accelerator physics where they are utilised in a photoinjector to generate high brightness electron beams
- Photocathodes - RP Photonics
A photocathode is an electrode made from a photoemissive material from which electrons can be released into free space via the external photoelectric effect
- What is a Photocathode? - The Photocathode Database
What is a Photocathode? Photocathodes convert light into electrons by the photoelectric effect In the photoemission process, photons (light) first penetrate the photocathode material where they can excite (give their energy to) electron-hole pairs
- Photocathode - an overview | ScienceDirect Topics
The photocathode simply aims to provide (1) the required level of oxygen for the ORR and reduction of air provider cost [75], and (2) the biomass that can be subsequently used directly as the fuel for the MFC anode
- Photocathode | electronics | Britannica
photocathode, an element of a photoelectric cell (q v ) that emits electrons when struck by light, making possible the flow of electric current through the device A substance often used for photocathodes is a partially oxidized silver–cesium alloy
- Photocathode | Radiology Reference Article - Radiopaedia. org
A photocathode is a negatively charged electrode in a light detection device such as the input screen in an image intensifier (II) that is coated with a photosensitive compound When this is struck by light photons, the absorbed energy causes electron emission due to the photoelectric (PE) effect
- Photocathode - Simple English Wikipedia, the free encyclopedia
A photocathode is a negatively charged electrode in a light detection device They are the main type of photomultiplier That means they take a little light, and make more of it
- Photocathodes - SpringerLink
The simplest form of the photocathode is a metallic surface, negatively biased, from which electrons are extracted by energetic photons After a brief description of the photocathode preparation, this chapter will present the latest developments and limitations of metallic and semiconductor photocathodes
|
|
|