GB2254185B - A surface discharge corona plasma cathode assembly - Google Patents

A surface discharge corona plasma cathode assembly

Info

Publication number
GB2254185B
GB2254185B GB9106352A GB9106352A GB2254185B GB 2254185 B GB2254185 B GB 2254185B GB 9106352 A GB9106352 A GB 9106352A GB 9106352 A GB9106352 A GB 9106352A GB 2254185 B GB2254185 B GB 2254185B
Authority
GB
United Kingdom
Prior art keywords
cathode assembly
surface discharge
corona plasma
plasma cathode
discharge corona
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9106352A
Other versions
GB2254185A (en
GB9106352D0 (en
Inventor
Simon Joseph Scott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems PLC
Original Assignee
British Aerospace PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Aerospace PLC filed Critical British Aerospace PLC
Priority to GB9106352A priority Critical patent/GB2254185B/en
Publication of GB9106352D0 publication Critical patent/GB9106352D0/en
Publication of GB2254185A publication Critical patent/GB2254185A/en
Application granted granted Critical
Publication of GB2254185B publication Critical patent/GB2254185B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G2/00—Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
    • H05G2/001—Production of X-ray radiation generated from plasma
    • H05G2/003—Production of X-ray radiation generated from plasma the plasma being generated from a material in a liquid or gas state
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/025—Electron guns using a discharge in a gas or a vapour as electron source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0385—Shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0388—Compositions, materials or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
    • H01S3/0971—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited
    • H01S3/09713—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited with auxiliary ionisation, e.g. double discharge excitation
    • H01S3/09716—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited with auxiliary ionisation, e.g. double discharge excitation by ionising radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0382—Cathodes or particular adaptations thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Electron Sources, Ion Sources (AREA)
GB9106352A 1991-03-26 1991-03-26 A surface discharge corona plasma cathode assembly Expired - Fee Related GB2254185B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9106352A GB2254185B (en) 1991-03-26 1991-03-26 A surface discharge corona plasma cathode assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9106352A GB2254185B (en) 1991-03-26 1991-03-26 A surface discharge corona plasma cathode assembly

Publications (3)

Publication Number Publication Date
GB9106352D0 GB9106352D0 (en) 1991-05-15
GB2254185A GB2254185A (en) 1992-09-30
GB2254185B true GB2254185B (en) 1995-01-18

Family

ID=10692191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9106352A Expired - Fee Related GB2254185B (en) 1991-03-26 1991-03-26 A surface discharge corona plasma cathode assembly

Country Status (1)

Country Link
GB (1) GB2254185B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2260854B (en) * 1991-10-22 1995-04-05 British Aerospace Surface discharge corona plasma cathode assembly
WO1999035893A2 (en) * 1998-01-08 1999-07-15 The University Of Tennessee Research Corporation Paraelectric gas flow accelerator
US6406759B1 (en) 1998-01-08 2002-06-18 The University Of Tennessee Research Corporation Remote exposure of workpieces using a recirculated plasma
JP2006273670A (en) * 2005-03-29 2006-10-12 Ngk Insulators Ltd Alumina tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757524A (en) * 1986-03-19 1988-07-12 Northrop Corporation X-ray generator
EP0421648A2 (en) * 1989-10-06 1991-04-10 British Aerospace Public Limited Company A surface discharge plasma cathode electron beam generating assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757524A (en) * 1986-03-19 1988-07-12 Northrop Corporation X-ray generator
EP0421648A2 (en) * 1989-10-06 1991-04-10 British Aerospace Public Limited Company A surface discharge plasma cathode electron beam generating assembly

Also Published As

Publication number Publication date
GB2254185A (en) 1992-09-30
GB9106352D0 (en) 1991-05-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010326