IT8349351A0 - X-RAY TUBE WITH ADJUSTABLE FOCAL POINT - Google Patents

X-RAY TUBE WITH ADJUSTABLE FOCAL POINT

Info

Publication number
IT8349351A0
IT8349351A0 IT8349351A IT4935183A IT8349351A0 IT 8349351 A0 IT8349351 A0 IT 8349351A0 IT 8349351 A IT8349351 A IT 8349351A IT 4935183 A IT4935183 A IT 4935183A IT 8349351 A0 IT8349351 A0 IT 8349351A0
Authority
IT
Italy
Prior art keywords
ray tube
focal point
adjustable focal
adjustable
ray
Prior art date
Application number
IT8349351A
Other languages
Italian (it)
Other versions
IT1178354B (en
Inventor
Sohval A Robert
Original Assignee
Elscint Inc
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 Elscint Inc filed Critical Elscint Inc
Publication of IT8349351A0 publication Critical patent/IT8349351A0/en
Application granted granted Critical
Publication of IT1178354B publication Critical patent/IT1178354B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/066—Details of electron optical components, e.g. cathode cups
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/153—Spot position control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/14—Arrangements for concentrating, focusing, or directing the cathode ray
    • H01J35/147—Spot size control
IT49351/83A 1982-11-23 1983-11-17 ADJUSTABLE FOCAL POINT X-RAY TUBE IT1178354B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44396382A 1982-11-23 1982-11-23

Publications (2)

Publication Number Publication Date
IT8349351A0 true IT8349351A0 (en) 1983-11-17
IT1178354B IT1178354B (en) 1987-09-09

Family

ID=23762917

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49351/83A IT1178354B (en) 1982-11-23 1983-11-17 ADJUSTABLE FOCAL POINT X-RAY TUBE

Country Status (6)

Country Link
JP (1) JPS59149642A (en)
DE (1) DE3342127A1 (en)
FR (1) FR2536583B1 (en)
IL (1) IL70210A (en)
IT (1) IT1178354B (en)
NL (1) NL192549C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538948B3 (en) * 1982-12-30 1985-10-18 Thomson Csf SCANNING X-RAY TUBE
US4698835A (en) * 1984-05-31 1987-10-06 Kabushiki Kaisha Toshiba X-ray tube apparatus
FR2572215A1 (en) * 1984-10-19 1986-04-25 Thomson Cgr Radiological device with focus positional control along a given control axis
US4764947A (en) * 1985-12-04 1988-08-16 The Machlett Laboratories, Incorporated Cathode focusing arrangement
FR2644931A1 (en) * 1989-03-24 1990-09-28 Gen Electric Cgr SCANNING X-RAY TUBE WITH DEFLECTION PLATES
FR2671229B1 (en) * 1990-12-28 1993-03-19 Gen Electric Cgr METHOD, TUBE AND SYSTEM FOR ELIMINATING AN ANTI-DIFFUSING GRID FIXED IN A RADIOLOGICAL IMAGE.
WO2003044823A1 (en) * 2001-11-20 2003-05-30 Koninklijke Philips Electronics Nv X-ray tube cathode cup structure for focal spot deflection

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250916A (en) * 1963-06-14 1966-05-10 Machlett Lab Inc Stereo x-ray device
US4048496A (en) * 1972-05-08 1977-09-13 Albert Richard D Selectable wavelength X-ray source, spectrometer and assay method
US3783323A (en) * 1972-08-30 1974-01-01 Picker Corp X-ray tube having focusing cup with non-emitting coating
DE2437119A1 (en) * 1974-08-01 1976-02-12 Siemens Ag Power X-ray tube with focussing Wehnelt cylinder - has electrostatic lens between Wehnelt cylinder and anode
US3962583A (en) * 1974-12-30 1976-06-08 The Machlett Laboratories, Incorporated X-ray tube focusing means
CA1108062A (en) * 1977-07-18 1981-09-01 Rudolph A. Morgenfruh Automatically colour printing control device
DE2821597A1 (en) * 1978-05-17 1979-11-22 Siemens Ag USE OF A SYSTEM FOR GENERATING A FLAT ELECTRON BEAM WITH PURELY ELECTROSTATIC FOCUSING IN AN X-RAY TUBE
JPS5568056A (en) * 1978-11-17 1980-05-22 Hitachi Ltd X-ray tube
DE3001141A1 (en) * 1980-01-14 1981-07-16 Siemens AG, 1000 Berlin und 8000 München CATHODE ARRANGEMENT FOR AN X-RAY TUBE
US4334153A (en) * 1980-09-29 1982-06-08 General Electric Company X-Ray tube grid bias supply

Also Published As

Publication number Publication date
NL192549B (en) 1997-05-01
NL8304028A (en) 1984-06-18
FR2536583B1 (en) 1990-05-11
JPS59149642A (en) 1984-08-27
NL192549C (en) 1997-09-02
FR2536583A1 (en) 1984-05-25
IL70210A0 (en) 1984-02-29
JPH0415982B2 (en) 1992-03-19
DE3342127A1 (en) 1984-06-07
IT1178354B (en) 1987-09-09
IL70210A (en) 1987-10-20

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