GB596985A - Improvements in or relating to electric discharge tubes - Google Patents

Improvements in or relating to electric discharge tubes

Info

Publication number
GB596985A
GB596985A GB9267/45A GB926745A GB596985A GB 596985 A GB596985 A GB 596985A GB 9267/45 A GB9267/45 A GB 9267/45A GB 926745 A GB926745 A GB 926745A GB 596985 A GB596985 A GB 596985A
Authority
GB
United Kingdom
Prior art keywords
polepieces
tubes
ions
sleeve
electrode
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
GB9267/45A
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 International Co
Original Assignee
Westinghouse Electric International Co
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 International Co filed Critical Westinghouse Electric International Co
Publication of GB596985A publication Critical patent/GB596985A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/26—Mass spectrometers or separator tubes
    • H01J49/28—Static spectrometers
    • H01J49/30—Static spectrometers using magnetic analysers, e.g. Dempster spectrometer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/20—Magnetic deflection

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

596,985. Positive ion tubes. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. April 13, 1945, No. 9267. Convention date, April 27, 1944. [Class 39 (i)] The ion path in a mass-spectrometer passes between two magnetic polepieces 14 fitting into a tubular metallic sleeve 6 ; non-magnetic tubes 20 secured to the ends of the polepieces form the entrance and exit spaces for the ions and are provided at their ends with slits such as exit slit 42, for the passage of ions therethrough. The glass insulating portions 2, 4, secured to the collar 6, complete the envelope and contain respectively the ion source 30 ... 36 and the collector electrode 44. In assembly, the polepieces are spaced correctly by a jig, bridges 16, 18 are respectively screwed and pinned across the top and bottom of the polepieces, the whole is inserted into sleeve 6 and spot-welded in position, and the jig is then removed. Tubes 20 are then screwed to the end faces by screws 22. The magnetic circuit is completed by external pole shoes 10 embracing the sleeve 6 and energized by coils 8 or by a permanent magnet. The ion source comprises a thermionic cathode 30 from which electrons are fired across the space within electrode 36 to anode 32. The gas is ionized and the ions are driven out by the field between electrode 36 and a plate 34, into the space between 36 and the end 38 of entrance tube 20, where they receive their final acceleration ; a spark source can also be used. A gas inlet 46 and outlet 26 are provided.
GB9267/45A 1944-04-27 1945-04-13 Improvements in or relating to electric discharge tubes Expired GB596985A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US596985XA 1944-04-27 1944-04-27
US533092A US2417797A (en) 1944-04-27 1944-04-27 Mass spectrometer

Publications (1)

Publication Number Publication Date
GB596985A true GB596985A (en) 1948-01-15

Family

ID=26739069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9267/45A Expired GB596985A (en) 1944-04-27 1945-04-13 Improvements in or relating to electric discharge tubes

Country Status (2)

Country Link
US (1) US2417797A (en)
GB (1) GB596985A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551544A (en) * 1944-09-20 1951-05-01 Alfred O C Nicr Mass spectrometer
US2726336A (en) * 1946-01-09 1955-12-06 Sidney W Barnes Calutron receivers
US2850639A (en) * 1946-02-21 1958-09-02 Fred H Schmidt Calutron receivers
US2490278A (en) * 1947-10-31 1949-12-06 Univ Minnesota Mass spectrometer tube ion source assembly
US3104322A (en) * 1958-02-10 1963-09-17 High Voltage Engineering Corp Compact neutron source
US2922905A (en) * 1958-06-30 1960-01-26 High Voltage Engineering Corp Apparatus for reducing electron loading in positive-ion accelerators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL45201C (en) * 1933-06-10
US2164302A (en) * 1934-12-26 1939-07-04 Walter C Barnes Method and apparatus for detecting flaws in metallic bodies
US2139685A (en) * 1937-01-05 1938-12-13 Bell Telephone Labor Inc Electron discharge device
US2226729A (en) * 1940-05-11 1940-12-31 Int Standard Electric Corp Low impedance power tube

Also Published As

Publication number Publication date
US2417797A (en) 1947-03-18

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