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GB978251A - Discharge device - Google Patents

Discharge device

Info

Publication number
GB978251A
GB978251A GB13466/63A GB1346663A GB978251A GB 978251 A GB978251 A GB 978251A GB 13466/63 A GB13466/63 A GB 13466/63A GB 1346663 A GB1346663 A GB 1346663A GB 978251 A GB978251 A GB 978251A
Authority
GB
United Kingdom
Prior art keywords
magnesium
calcium
alloy
discharge device
poured
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
Application number
GB13466/63A
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB978251A publication Critical patent/GB978251A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

In a gas discharge tube for use in spectroscopic analysis, the cathode comprises an alloy of calcium, magnesium and aluminium. The alloy preferably includes 10-15% calcium and 10-15% magnesium, and may be made by induction melting the constituent elements in a graphite crucible in a helium atmosphere at 3/4 atmospheric pressure, the materials being held molten for one minute before being poured into a split copper mould to form a cylindrical member.
GB13466/63A 1962-04-20 1963-04-04 Discharge device Expired GB978251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US189088A US3183393A (en) 1962-04-20 1962-04-20 Discharge device

Publications (1)

Publication Number Publication Date
GB978251A true GB978251A (en) 1964-12-23

Family

ID=22695876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13466/63A Expired GB978251A (en) 1962-04-20 1963-04-04 Discharge device

Country Status (3)

Country Link
US (1) US3183393A (en)
DE (1) DE1224836B (en)
GB (1) GB978251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273690B (en) * 1965-07-22 1968-07-25 Original Hanau Quarzlampen Water-cooled hydrogen lamp

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3286119A (en) * 1963-05-08 1966-11-15 Hitachi Ltd Hollow cathode discharge tubes
GB1126661A (en) * 1964-11-19 1968-09-11 M O Valve Co Ltd Improvements in or relating to gas-filled electric discharge devices
US3476970A (en) * 1966-09-12 1969-11-04 Westinghouse Electric Corp Hollow cathode electron discharge device for generating spectral radiation
US3614642A (en) * 1966-09-14 1971-10-19 Univ Maryland Gas laser
US3482138A (en) * 1967-05-16 1969-12-02 Perkin Elmer Corp Germanium hollow cathode assembly for lamps
US3487254A (en) * 1969-01-16 1969-12-30 Perkin Elmer Corp Alloy for hollow cathode lamp
US3725716A (en) * 1971-06-16 1973-04-03 Westinghouse Electric Corp Hollow cathode device with improved spectral light output and stability
US4437038A (en) * 1979-05-29 1984-03-13 Westinghouse Electric Corp. Hollow cathode lamp with improved stability alloy for the cathode
CN87201859U (en) * 1987-02-12 1987-10-21 北京有色金属研究总院 Hollow cathode lamp with fine performance
DE3827322A1 (en) * 1988-07-05 1990-01-11 Spectruma Gmbh DEVICE FOR SIMULTANEOUS ATOMIC ABSORPTION SPECTROMETRY

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1334150A (en) * 1916-07-11 1920-03-16 Gen Electric Electrical discharge-tube
US1908366A (en) * 1929-12-06 1933-05-09 Bell Telephone Labor Inc Electrical discharge device
US1834251A (en) * 1930-09-02 1931-12-01 Gen Electric Electrical discharge device
US2457891A (en) * 1945-01-12 1949-01-04 Andrew F Henninger Electron discharge device
US2765417A (en) * 1948-10-16 1956-10-02 Gen Electric Electric discharge device
GB896744A (en) * 1959-10-19 1962-05-16 Commw Scient Ind Res Org Improvements in and relating to atomic spectral lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273690B (en) * 1965-07-22 1968-07-25 Original Hanau Quarzlampen Water-cooled hydrogen lamp

Also Published As

Publication number Publication date
DE1224836B (en) 1966-09-15
US3183393A (en) 1965-05-11

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