US2329320A - X-ray tube - Google Patents

X-ray tube Download PDF

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Publication number
US2329320A
US2329320A US440516A US44051642A US2329320A US 2329320 A US2329320 A US 2329320A US 440516 A US440516 A US 440516A US 44051642 A US44051642 A US 44051642A US 2329320 A US2329320 A US 2329320A
Authority
US
United States
Prior art keywords
target
anode
head
filament
envelope
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 - Lifetime
Application number
US440516A
Other languages
English (en)
Inventor
Zed J Atlee
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.)
General Electric X Ray Corp
Original Assignee
General Electric X Ray 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
Priority to BE475842D priority Critical patent/BE475842A/xx
Application filed by General Electric X Ray Corp filed Critical General Electric X Ray Corp
Priority to US440516A priority patent/US2329320A/en
Application granted granted Critical
Publication of US2329320A publication Critical patent/US2329320A/en
Priority to FR942221D priority patent/FR942221A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/112—Non-rotating anodes

Definitions

  • cathode I5 ein facing relationship' ⁇ and enclosed", within Van jhermetically Vsealed and evacuated envelope I1 and having suitable electrical connections vextending through g the envelope for supplying the anode and cath- I ode with electrical power from a suitable external source.
  • Thecatho'de I5 maycomprisevan ,elec-l tron emitting filament 25 mountedl on a ,head I9 which in turn is'supported and sealed upon a re-,entrant' envelope ⁇ portion.comprising afhfollow,
  • the anode I3 comprises a base of suitable material, such as copper, forsllpporting an elec tron target thereon atl the target end 3
  • I may employ any suitable-target matefA rial, such as chromium,V cobalt, ni::kel,-liron,k copper.manga.nese, vanadium, f nmlybdenum,y
  • the anode I3l preferably Within the envelope of thegenerator ⁇ for applying Atargetmaterial tov-the target surface 3
  • the supportstem4 may vpass
  • :orthevstem y may be'p'ress- ⁇ iitted ina socket inthe head whereby to 'electri-y cally connect the filament on theA head.
  • Conductors 23 ⁇ for energizingtljle electron emitting lament 25 are'sealed in Aand may extend through the stem 2
  • LAs shown, 'chef n conductor 23 is connectedvvithmone vof the la- ⁇ ment stems whilethe,kothercconductor is con- K nect'edtothehead.
  • therme' filament ris. oreiongad character is supported ina groove 21 formed in the cathode head whereby electrons emitted byf ythe ⁇ filament, VVWhen; energized," will be ⁇ focusedY uponthe facing ox" ⁇ targetfend.
  • the electron emitting filament 25 of the cathode comprises an elongated element, as shown in Figure 3 ⁇ of the drawing, electrons emitted bysaid filament will impinge uponfthe target surface 3
  • the film of target material should be applied to the anode while the latter is at a temperature causing the vaporized target material readily to condense and adhere upon the target surface of the anode.
  • the temperature ofv the anode should not be high enough to promote solution of the vaporized material with the material of the anode base to any degree more than necessary to allow the target material to wet and adhere on the anode base, as otherwise the target material in the film 65 may become contaminated by the material of the base should alloying occur to any extent throughout the thickness of the film. For this reason, it is desirable that the anode base be held at a temperature but slightly higher than normal room temperature while the film 65 is being applied.
  • the film 65 may be applied by depositing superposed layers of material on the anode base.
  • the head may be formed with a demountable segfrom the foregoing description, and it is obvious that numerous changes may be made in the form, construction and arrangement of the several parts Without departing from the spirit or scope of the invention, or sacricingany of its attendant advantages, the form herein disclosed being 'ay preferred embodiment for ⁇ trating the invention. f
  • An X-ray generator comprising a sealed envelope, an electron emitting cathode and a co-operating anode baseforming a target surface insaid envelope facingsaid cathode, said 'cathode having a head provided with a cavity in spaced relation with theelectron emitting portion of the cathode, a supply of target ma.- terial in saidcavity, heating means for vaporthev purpose of illusf izing said target material, means for energizing the heating means from a controllable source ment 61 which, when in place, defines one side of the cavity 59.
  • the cavity is provided with an opening toward the medial portions of said target surface and said supply of target material and the means ⁇ for vaporizing the same are supported in said cavity.
  • An X-ray generator as set forth in claim l wherein thecathode head has ademountable section deiininga sideof the cavity whereby to facilitate the assembly of the target material and the means for vaporizing the same in said cavity.

Landscapes

  • X-Ray Techniques (AREA)
US440516A 1942-04-25 1942-04-25 X-ray tube Expired - Lifetime US2329320A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE475842D BE475842A (fr) 1942-04-25
US440516A US2329320A (en) 1942-04-25 1942-04-25 X-ray tube
FR942221D FR942221A (fr) 1942-04-25 1947-02-21 Perfectionnements aux tubes à rayons chi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440516A US2329320A (en) 1942-04-25 1942-04-25 X-ray tube

Publications (1)

Publication Number Publication Date
US2329320A true US2329320A (en) 1943-09-14

Family

ID=23749061

Family Applications (1)

Application Number Title Priority Date Filing Date
US440516A Expired - Lifetime US2329320A (en) 1942-04-25 1942-04-25 X-ray tube

Country Status (3)

Country Link
US (1) US2329320A (fr)
BE (1) BE475842A (fr)
FR (1) FR942221A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511151A (en) * 1947-09-24 1950-06-13 Armour Res Found X-ray apparatus and method
US2549596A (en) * 1946-10-08 1951-04-17 Joseph G Hamilton Beryllium target and method of manufacture
US2597817A (en) * 1946-05-09 1952-05-20 Poittevin Maurice X-ray tube
US2767341A (en) * 1952-08-12 1956-10-16 Dunlee Corp Anode structure for double filament x-ray tube
US3334228A (en) * 1964-11-06 1967-08-01 Gen Electric X-ray spectrometer having an x-ray source with a continuously cleaned x-ray target
US3526799A (en) * 1967-05-26 1970-09-01 Gen Electric Electron discharge device subject to hydrocarbon background pressure and having carbon-dissolving electrodes
FR2574591A1 (fr) * 1984-12-11 1986-06-13 Hamamatsu Photonics Kk Tube a rayons x a spectres multiples

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597817A (en) * 1946-05-09 1952-05-20 Poittevin Maurice X-ray tube
US2549596A (en) * 1946-10-08 1951-04-17 Joseph G Hamilton Beryllium target and method of manufacture
US2511151A (en) * 1947-09-24 1950-06-13 Armour Res Found X-ray apparatus and method
US2767341A (en) * 1952-08-12 1956-10-16 Dunlee Corp Anode structure for double filament x-ray tube
US3334228A (en) * 1964-11-06 1967-08-01 Gen Electric X-ray spectrometer having an x-ray source with a continuously cleaned x-ray target
US3526799A (en) * 1967-05-26 1970-09-01 Gen Electric Electron discharge device subject to hydrocarbon background pressure and having carbon-dissolving electrodes
FR2574591A1 (fr) * 1984-12-11 1986-06-13 Hamamatsu Photonics Kk Tube a rayons x a spectres multiples

Also Published As

Publication number Publication date
FR942221A (fr) 1949-02-02
BE475842A (fr)

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