US2327586A - X-ray tube - Google Patents

X-ray tube Download PDF

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Publication number
US2327586A
US2327586A US391947A US39194741A US2327586A US 2327586 A US2327586 A US 2327586A US 391947 A US391947 A US 391947A US 39194741 A US39194741 A US 39194741A US 2327586 A US2327586 A US 2327586A
Authority
US
United States
Prior art keywords
envelope
shutter
shield
opening
rays
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
US391947A
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 BE475841D priority Critical patent/BE475841A/xx
Application filed by General Electric X Ray Corp filed Critical General Electric X Ray Corp
Priority to US391947A priority patent/US2327586A/en
Application granted granted Critical
Publication of US2327586A publication Critical patent/US2327586A/en
Priority to FR945015D priority patent/FR945015A/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
    • H01J35/16—Vessels; Containers; Shields associated therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details

Definitions

  • Y My invention relates in general to stantially immune to the anode target Patented Aug. 24, 1943 K if: @am
  • An important object of thepresent invention is to provide an X-ray generator having an envelope structure substantially immuneV to deterioration as a result of X-ray and electronicastion; a further object being to provide an X-ray tube in which all portions of the envelope normally exposed to X-ray and electronicaction during operation of the tube comprise metal subdeterioration; a still further object being to utilize a metal tube asY an envelope in an X-ray generator.
  • Another important object is to prevent metallic deposit, caused on the envelope by electrode deterioration during operation of the generator, from impairing the substantial transparency of Vthe envelope to X-rays; a further object beingf'to provide the envelope with a screen member shiftable progressively to present portions freeV of metallic deposit in position to transmit useful X- rays through theY being to provide aV windowed guard and Vco-operv ating screen in the generatonthe screen being movable in said Window to enable ⁇ deposit-free screen portions to be progressively presented at said Windowfin order to maintainX-ra'y transparency of the Window structure.
  • Figure 1 is a ⁇ sectional View through anX-ra-yV generator embodying the present invent'iomfand Figure 2- is asectional View taken substantially along the line 2-2 in Figure 1.
  • an X-ray tubel l comprising'an anode I3 and acathode ⁇ l5*V enclosed ina"sealed envelope preferably comprising aseamlessstel tubeIL-
  • the anode I3 comprises a'he'ad supporting a target. ls'opposite the cathode in position/to receive the impingement of electrons emitted by the' cathode during the operation ofthe device as fari -X-ray generator.
  • VThe cathode Valso comprises a head in which may?
  • each stem 2S is formed With a seat 25, and each stem carriesa cup-shaped metallic seal element 29 formed with an' opening at one end to snugly receive the stem on which mounted, .themem- -bers29 beinghermetically sealed yeach on its carrying stem at the seat 25; LEach member 2! extends from its seat 25 and forms a skirt embracing Vthe stem" on which it'is mounted and forms an annular edge making a glass-to-#metal seal 3 i with a co-operatingf glass end seal mem- 33 comprises a glass disk.
  • Vanode :andicathode electrodes are thus each supported on a ring mem- ⁇ ber t9, Whichiring-membrsare sealed to the opposite ends-301 the4 envelope member il preferablyV by V'means lof silver soldered joints 4l.
  • the beryllium Window-pane may be applied by soldering'it in a ring of coldrolledsteel 4l by meansrof a suitable solder1 '49, 4Which may comprise .an alloy of silver and copper in substantially equal quantities of each, the preferably steel ring lbbeing brazed, soldered. or Welded to the steel ⁇ tube l l iin any suitable'or preferred vacuum-tight fashion. r
  • VIt should be understood that X-ray generators 'function to produce X-rays in? response to ⁇ the activation of the anode electronic actioni consisting of theimpingement ofielectrons emitted by the cathode upon the Y anode target. I9.
  • the material of the cathode and itsv fila Y ment may also be gradually ration during the operating life of the generator'.
  • the glass seal member derstoodffrom the foregoing description, and it y is Vobvious that numerous changesr may .be made the. several parts without departing from the shield 5I comprising preferably a steel tube'oi n a size to fit'within the tubularv memberl1 and provided with a rim'53 at'one endofthel tube 5I, by meansorwhich it may be secured, as by spotwelding or otherwise, to and'within the member -I'l ⁇ in position embracing the facingendsA of'theelectrodes'lS and l5.:.
  • ' is provided with an opening 55 in line withthe;
  • the sleeve 5l defines an annular channelwith'the envelope i1 outwardly of the shield 5I, and-within.
  • this-'annular channel,I dispose a preferablyv cylindrical shutter 51 of anyy suitable material whichissubstantially transparent to X-r'ays.l
  • the shutter l' may be turned in orderto presentan uncoated portion thereof at the open-v ingK 55, thereby ⁇ completely restoring the: efliciency of thegenerator Yas' ⁇ a source; oi"V X-rays delivered through the opening 55 and thewinvAny suitable means may be employed for .turning" theoshutter 51, and variet vcomprising lafbar of suitable magnetic thenl shifted'circumferentially of .the shell l1 I have shown a magnetic the edge ofthe' shutter in position-to; be actuated by a magnetoperated spirit orzscope of the invention, .or sacrificing any ofvits attendant advantages, the' form here-v in disclosed being'a preferredl embodiment for the purpose 'of' illustrating' the' invention.
  • terialvaporizedf as aresult oijtlieactuationot 'the-"electrodemeans; said shield meanslboing. and being disposedber j means, whereby to yuncover a portion ofeth'e shut'- termeans at said opening, :said/shield and/shut- .ter means beingrelatively movable topresent'rre# mote portions of thershuttermeans in position v toreceive said vaporized materialfat saidfopening, and magnetic meansfor,v relatively Vmoving' saidv shield and ⁇ shutter means.
  • Adevioe ofltherclass,descr1bed,c0m prising any envelope, electrodemeans within .saiden-y velope, overlapping 'shieldgand shutter means: within said venvelope in position. to receive Ina-1.V terial vaporized as aresult of the-actuation of the ,electrodemeans said shield; means being formed with an' openingandbeing disposed bei.
  • said shutter means yan ter means being relatively movablev to present to Vreceive Vsaid 4.v Adevicebf the class desribedfcomprisfing an envelope, Aelectrode means within, said'l en'" velope, 'concentrically disposed-,shield and shut4 termeans within, said envelopejin' circlingjthe electrode means, saidshieldfmeans being formed with'an opening and ⁇ A beingdiSF,V posed between saidshutter means andsad'elecgf; f gf" dv sadj: electrode -Y n A means, whereby to uncover a portion of theA shutvter means at said opening, said shield -andshut- Vmote portions of the shutter means ⁇ in exposed y position at said opening.
  • a device of the class described comprising an envelope, electrode means Within said envelope, an annular shield within said envelope' and formed with a Window opposite said electrode means, and a cylindrical shutter encircling said shield Within saidv envelope, said shutter being turnable with respect to said shield whereby to present'remote portions of the shutter in position exposed atvsaid Window.
  • a device of the class described comprising electrode means, means forming an envelope enclosing the electrode means and providing a shield formed with an opening opposite said electrode means and a movable shutter co-operatively associated with said Vshield and operable to present remote portions of said shutter in said opening.
  • a device of the class described comprising an envelop-e, electrode means Within said envelope and including an anode adapted to be energized to constitute a source of X-rays, a shield in said envelope adjacent said anode, said shield being formed with an opening in the path of useful X-rays emanating from said anode, and
  • a device of the class described comprising an envelope, said envelope comprising a tubular metallic member and end seals on said member, electrode means in said envelope and supported on said end seals, means on said envelope forming a shield spaced from and'. having an open--v ing opposite said electrode means, and a shutter on the side of said shield remotey from said electrode means and movable with respect to the shield to present rem te portions of the shutter at said opening.
  • a device of the class described comprising anrenvelope, said envelope comprising a tubular metallic member and end seals on said member,v
  • Electrode means in said envelope and supported on said end seals means on said envelope forming a shield spaced from andrhaving an opening opposite said Velectrode means, and a shutter on the side of said shield remote from said elec-A trode means and movable with respect to the shield to present remote portions of the shutter at said opening, said shutter comprising material substantially transparent to X-rays.
  • a device of the class described comprising an envelope, said envelope comprising a tubular metallic-member and end seals on said member,
  • said envelope on said end seals, meanson said envelope forming a shield spaced from and having anvopening opposite said electrode means, and a shutter on the side of said shield remote from said electrode means and movable with respect to the shield to present remote portions of the shutter at said opening, said shutter comprising aluminum.
  • a device of the class described comprising said envelope comprising a tubular metallic member and end seals on said member, electrode means in said envelope yand supported on said end seals, means on said envelope forming a shield spaced from and having an opening opposite said electrode means, and a shutter on the side of said shield remote from said electrode means and movable Withfrespect to the shield to present remote portions 'of the shutter at said opening, said shutter comprising material substantiallyrtransparent to X-rays and having an edge portion extending adjacent one of said end seals, and means on said edge in position to be inuenced by forces applied through said end seal for moving said shutter.

Landscapes

  • X-Ray Techniques (AREA)
US391947A 1941-05-05 1941-05-05 X-ray tube Expired - Lifetime US2327586A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE475841D BE475841A (fr) 1941-05-05
US391947A US2327586A (en) 1941-05-05 1941-05-05 X-ray tube
FR945015D FR945015A (fr) 1941-05-05 1947-04-11 Perfectionnements aux tubes à rayons chi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391947A US2327586A (en) 1941-05-05 1941-05-05 X-ray tube

Publications (1)

Publication Number Publication Date
US2327586A true US2327586A (en) 1943-08-24

Family

ID=23548626

Family Applications (1)

Application Number Title Priority Date Filing Date
US391947A Expired - Lifetime US2327586A (en) 1941-05-05 1941-05-05 X-ray tube

Country Status (3)

Country Link
US (1) US2327586A (fr)
BE (1) BE475841A (fr)
FR (1) FR945015A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431277A (en) * 1944-02-03 1947-11-18 Hartford Nat Bank & Trust Comp Metal-glass joint
US2594564A (en) * 1948-12-16 1952-04-29 Kehrli Hans Revolving anode roentgen ray tube
US2617953A (en) * 1949-06-28 1952-11-11 Electronized Chem Corp Window structure for cathode-ray tubes
US2720607A (en) * 1952-06-23 1955-10-11 Edward L Criscuolo Sealed off, fine focus, long life, flash x-ray tube
US2760261A (en) * 1952-04-17 1956-08-28 Ohio Commw Eng Co Method of bonding articles
US2836764A (en) * 1952-01-29 1958-05-27 Raytheon Mfg Co Magnetron output coupling devices
US3479566A (en) * 1968-03-11 1969-11-18 Rca Corp Shield
US3878417A (en) * 1971-10-13 1975-04-15 Siemens Ag Ray transmitting window
US5056126A (en) * 1987-11-30 1991-10-08 Medical Electronic Imaging Corporation Air cooled metal ceramic x-ray tube construction
USD755388S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755389S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755390S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755386S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755387S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755391S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431277A (en) * 1944-02-03 1947-11-18 Hartford Nat Bank & Trust Comp Metal-glass joint
US2594564A (en) * 1948-12-16 1952-04-29 Kehrli Hans Revolving anode roentgen ray tube
US2617953A (en) * 1949-06-28 1952-11-11 Electronized Chem Corp Window structure for cathode-ray tubes
US2836764A (en) * 1952-01-29 1958-05-27 Raytheon Mfg Co Magnetron output coupling devices
US2760261A (en) * 1952-04-17 1956-08-28 Ohio Commw Eng Co Method of bonding articles
US2720607A (en) * 1952-06-23 1955-10-11 Edward L Criscuolo Sealed off, fine focus, long life, flash x-ray tube
US3479566A (en) * 1968-03-11 1969-11-18 Rca Corp Shield
US3878417A (en) * 1971-10-13 1975-04-15 Siemens Ag Ray transmitting window
US5056126A (en) * 1987-11-30 1991-10-08 Medical Electronic Imaging Corporation Air cooled metal ceramic x-ray tube construction
USD755388S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755389S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755390S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755386S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755387S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device
USD755391S1 (en) * 2014-09-25 2016-05-03 Kabushiki Kaisha Toshiba X-ray tube for medical device

Also Published As

Publication number Publication date
FR945015A (fr) 1949-04-22
BE475841A (fr)

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