Li et al., 2009 - Google Patents
Development of high-current sheet beam cathodes for terahertz sourcesLi et al., 2009
View PDF- Document ID
- 9851682192627429102
- Author
- Li L
- Wang Y
- Liu W
- Wang Y
- Wang J
- Srivastava A
- So J
- Park G
- Publication year
- Publication venue
- IEEE transactions on electron devices
External Links
Snippet
Generation of a sheet beam directly from a scandia-doped dispenser cathode has been investigated and optimized by means of beam-profile simulations and measurements. Rectangular beams 600 mum wide and 100 mum thick with current densities over 50 A/cm 2 …
- 238000011161 development 0 title description 8
Classifications
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/24—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
- H01J37/243—Beam current control or regulation circuits
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/06—Sources
- H01J2237/08—Ion sources
- H01J2237/0802—Field ionization sources
- H01J2237/0807—Gas field ion sources [GFIS]
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes, e.g. for surface treatment of objects such as coating, plating, etching, sterilising or bringing about chemical reactions
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted to the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/26—Electron or ion microscopes
- H01J2237/28—Scanning microscopes
- H01J2237/2813—Scanning microscopes characterised by the application
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometer or separator tubes
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J45/00—Discharge tubes functioning as thermionic generators
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. Klystrons, travelling-wave tubes, magnetrons
- H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
-
- H—ELECTRICITY
- H01—BASIC ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J33/00—Discharge tubes with provision for emergence of electrons or ions from the vessel; Lenard tubes
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Burdovitsin et al. | Fore-vacuum plasma-cathode electron sources | |
| Booske | Plasma physics and related challenges of millimeter-wave-to-terahertz and high power microwave generation | |
| Hauri et al. | Intrinsic emittance reduction of an electron beam from metal photocathodes | |
| Togawa et al. | CeB 6 electron gun for low-emittance injector | |
| Navrotsky et al. | Electron-optic system with a converged sheet electron beam for a 0.2-THz traveling-wave tube | |
| Liu et al. | Emission characteristics of nanosized scandia-doped dispenser cathodes in open electron-gun structures | |
| Kumar et al. | Experimental analysis of pseudospark sourced electron beam | |
| Sinclair | DC photoemission electron guns as ERL sources | |
| Jarvis et al. | Emittance measurements of electron beams from diamond field emitter arrays | |
| Tan et al. | Mechanism analysis of field electron emission of titanium | |
| Li et al. | Development of high-current sheet beam cathodes for terahertz sources | |
| Bakr et al. | CeB 6: Emission performance and uniformity compared with LaB 6 for thermionic RF guns | |
| Tsujino et al. | Sub-nanosecond switching and acceleration to relativistic energies of field emission electron bunches from metallic nano-tips | |
| Mamun et al. | Production of magnetized electron beam from a dc high voltage photogun | |
| Ju et al. | Characterization of Cesium Iodide-Coated Carbon-Fiber Aluminum Cathode for an $ S $-Band High-Efficiency Vircator | |
| Hanai et al. | Characteristics of cesium-free negative hydrogen/deuterium ion source by sheet plasma | |
| Li et al. | Generation of high-current-density sheet electron beams | |
| Seznec et al. | Theoretical treatment of electron emission and related phenomena | |
| Zhu et al. | Nonuniform space charge limited current for 2-D bipolar flow in vacuum diode | |
| Wang et al. | High current density Sc 2 O 3-W matrix dispenser cathode | |
| Mohsen et al. | Initial beam dynamics simulations of a high-average-current field-emission electron source in a superconducting radiofrequency gun | |
| Bakr et al. | Influence of the Cathode Material Properties in Reducing the Back-Bombardment Effect in Thermionic RF Gun | |
| Lan et al. | Experimental observation of the electron beam focusing effect induced by plasma currents with opposite directions | |
| Han et al. | Single-side electron multipacting at the photocathode in rf guns | |
| Bito et al. | NIBS2020 poster Q+ A |