US2468942A - X-ray tube cooling apparatus - Google Patents

X-ray tube cooling apparatus Download PDF

Info

Publication number
US2468942A
US2468942A US680612A US68061246A US2468942A US 2468942 A US2468942 A US 2468942A US 680612 A US680612 A US 680612A US 68061246 A US68061246 A US 68061246A US 2468942 A US2468942 A US 2468942A
Authority
US
United States
Prior art keywords
heat
liquid
anode
cooling
ray tube
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
US680612A
Other languages
English (en)
Inventor
Oosterkamp Wijbe Johannes
Vingerhoets Antonius Wilhelmus
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2468942A publication Critical patent/US2468942A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
    • H01J35/105—Cooling of rotating anodes, e.g. heat emitting layers or structures
    • H01J35/106—Active cooling, e.g. fluid flow, heat pipes

Definitions

  • an ordinary technicalX-ray tube may be used for thesevinvestigations.
  • an X-ray tube is'already knownwhich compr-leesl a disc-shaped -anode constituted by a thin metal plate, the heat produced in this plate asa result of the. impact .of electrons being carriedaway on. theside ywhich is remote from. the surface .of impact.
  • the disc-shaped anode must be; cooled very thoroughly since the surface available for the ⁇ transmission of heat. is much; smaller than in the mst-mentioned .constructions
  • they back of the anode plate is cooled-with the aid yof a liquid flow, the liquid being;conducted.with, great speed along thelsurface.
  • This :invention relatesv-to an-:X-ray tubeAv comprising: ,anv fanode, 4theft-.surface of 'impact 'y of the electrons beingconstitutedbyrfa-thin metal plate and the yheat@ :producedifin the flatter being carried awayzon .the ⁇ side fwhichi :is remote.4 from the surface 'struck the electrons.
  • the focal spot that is the spot of the anode which is struck by electrons will have an elongated shape, the longest dimension of which as viewed in the direction of the emanating X-ray beam is observed as shortened.
  • the cooling body is preferably realized as a rotary member and is given the shape of a cylinder or a disc.
  • the cooling of this member may alternatively be effected by a separate liquid, for example by making the cooling body hollow and by supplying and carrying off the cooling liquid through the axis of rotation.
  • Xray tube i comprises a cooling device 2 and is constituted by a metal portion 3 provided with an aperture l closed by a thin metal plate 5 of tungsten.
  • This metal plate which constitutes the anode, serves as the disc of impact for the electrons and is heated under the action of the impact of electrons.
  • the heat produced in the disc is carried away at its back and is transmitted to a cooling body 8 by means of a liquid which completely lls the casing E of cooling device 2 and which is also present between anode 5 and cooling body 8. ⁇ The presence of this liquid is not sufficient quickly to carry oi the heat from the heated surface, although in the example shown the whole heat transport is effected via the liquid.
  • the heat is emitted by the liquid to the wall of casing 6 which cornprises cooling ribs l to facilitate the radiation of heat to the surrounding air.
  • the emission of heat may be increased by means of artificial cooling of casing '6, for which purpose it may be provided with an envelope, a liquid ⁇ or a gaseous cooling agent being led through the space which exists between the casing and the envelope.
  • Cooling body 8 which is preferably of copper, is shaped in the form of a disc and can rotate about a shaft 9 which is led to the exterior through the wall of casing t of the cooling device with the aid of an obturating ring l! for the liquid.
  • disc 8 When the X-ray tube is operative, disc 8 is rotated; shaft 5 may be driven by means of a motor which may be united to form one whole with the cooling device.
  • the number of revolutions of disc 8 may be, for example, 50 p-er second.
  • the metal portion 3 of the X-ray tube is connected to a glass portion l l of the wall, comprising a re-entrant part I2.
  • the latter carries a collecting device i3 containing an incandescent cathode lli which is heated by electric current, for which purpose serve supply conductors I5 and I6 which are led in a vacuum-tight manner through the glass stem Il.
  • An X-ray tube particularly adapted for prolonged loads, comprising a cathode, an anode comprising a target heated on the surface facing the cathode by electrons from the cathode, and to be cooled by removal of the heat through the rear surface thereof; and means for cooling the anode by rapid removal of the heat therefrom, said means including a body of liquid having a high thermal conductivity in intimate thermal contact with the rear surface of the anode, and a rotatable disc-shaped cooling body disposed so its peripheral edge is immersed in the liquid and closely adjacent the rear surface of the anode plate and separated therefrom by a lm of the liquid.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • X-Ray Techniques (AREA)
US680612A 1943-03-15 1946-07-01 X-ray tube cooling apparatus Expired - Lifetime US2468942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL617373X 1943-03-15

Publications (1)

Publication Number Publication Date
US2468942A true US2468942A (en) 1949-05-03

Family

ID=19788317

Family Applications (1)

Application Number Title Priority Date Filing Date
US680612A Expired - Lifetime US2468942A (en) 1943-03-15 1946-07-01 X-ray tube cooling apparatus

Country Status (5)

Country Link
US (1) US2468942A (ja)
DE (1) DE923565C (ja)
FR (1) FR902678A (ja)
GB (1) GB617373A (ja)
NL (1) NL63159C (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653260A (en) * 1949-01-12 1953-09-22 Horizons Inc Demountable x-ray tube construction
US2816241A (en) * 1951-09-27 1957-12-10 Gen Electric Electron targets and means for and method of cooling the same
US3213379A (en) * 1962-03-13 1965-10-19 Richard J Burleigh Absorption of energy by rotating discs in particle beam deflector
US3239706A (en) * 1961-04-17 1966-03-08 High Voltage Engineering Corp X-ray target
US3564317A (en) * 1967-05-13 1971-02-16 Philips Corp Cathode for an x-ray tube cooled by heat-conductive coaxial cylinders
US3694685A (en) * 1971-06-28 1972-09-26 Gen Electric System for conducting heat from an electrode rotating in a vacuum
US3711736A (en) * 1970-03-13 1973-01-16 Radiologie Cie Gle X-ray tube having a rotary anode
US4336476A (en) * 1978-09-05 1982-06-22 The Machlett Laboratories, Incorporated Grooved X-ray generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405876A (en) * 1981-04-02 1983-09-20 Iversen Arthur H Liquid cooled anode x-ray tubes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1095121A (en) * 1911-12-12 1914-04-28 John Alfred Mannheim Cooling device for röntgen tubes.
US1180998A (en) * 1914-07-31 1916-04-25 Jefferson D Gibson X-ray tube.
US1685928A (en) * 1921-06-09 1928-10-02 Morrison Montford X-ray tube
US1705033A (en) * 1929-03-11 1929-03-12 Coolihg meahs sob ihstdxatbd electrodes
US1972114A (en) * 1933-01-06 1934-09-04 George J Irsch Force cup
US2075146A (en) * 1933-06-25 1937-03-30 Sergeeff Sergei Metallic roentgen tube with revolving anticathode

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT127611B (de) * 1927-01-18 1932-04-11 Philips Nv Röntgenröhre.
FR741148A (ja) * 1931-11-05 1933-02-04

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1095121A (en) * 1911-12-12 1914-04-28 John Alfred Mannheim Cooling device for röntgen tubes.
US1180998A (en) * 1914-07-31 1916-04-25 Jefferson D Gibson X-ray tube.
US1685928A (en) * 1921-06-09 1928-10-02 Morrison Montford X-ray tube
US1705033A (en) * 1929-03-11 1929-03-12 Coolihg meahs sob ihstdxatbd electrodes
US1972114A (en) * 1933-01-06 1934-09-04 George J Irsch Force cup
US2075146A (en) * 1933-06-25 1937-03-30 Sergeeff Sergei Metallic roentgen tube with revolving anticathode

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653260A (en) * 1949-01-12 1953-09-22 Horizons Inc Demountable x-ray tube construction
US2816241A (en) * 1951-09-27 1957-12-10 Gen Electric Electron targets and means for and method of cooling the same
US3239706A (en) * 1961-04-17 1966-03-08 High Voltage Engineering Corp X-ray target
US3213379A (en) * 1962-03-13 1965-10-19 Richard J Burleigh Absorption of energy by rotating discs in particle beam deflector
US3564317A (en) * 1967-05-13 1971-02-16 Philips Corp Cathode for an x-ray tube cooled by heat-conductive coaxial cylinders
US3711736A (en) * 1970-03-13 1973-01-16 Radiologie Cie Gle X-ray tube having a rotary anode
US3694685A (en) * 1971-06-28 1972-09-26 Gen Electric System for conducting heat from an electrode rotating in a vacuum
US4336476A (en) * 1978-09-05 1982-06-22 The Machlett Laboratories, Incorporated Grooved X-ray generator

Also Published As

Publication number Publication date
GB617373A (en) 1949-02-04
DE923565C (de) 1955-02-17
NL63159C (ja)
FR902678A (fr) 1945-09-10

Similar Documents

Publication Publication Date Title
US6361208B1 (en) Mammography x-ray tube having an integral housing assembly
US4993055A (en) Rotating X-ray tube with external bearings
US3795832A (en) Target for x-ray tubes
JP6039283B2 (ja) 放射線発生装置及び放射線撮影装置
JP6039282B2 (ja) 放射線発生装置及び放射線撮影装置
US2209963A (en) X-ray generating device
US2468942A (en) X-ray tube cooling apparatus
JP2753566B2 (ja) ベローズを使用した高強度ｘ線源
US2090636A (en) X-ray tube
JP2000003799A (ja) Ｘ線装置の冷却
JP2000040479A (ja) Ｘ線管及びその軸受体を冷却する方法
US5535255A (en) System for the cooling of an anode for an X-ray tube in a radiogenic unit without heat exchanger
USH312H (en) Rotating anode x-ray tube
US3719847A (en) Liquid cooled x-ray tube anode
US2168780A (en) X-ray tube
JP4309290B2 (ja) Ｘ線ターゲット用液体金属ヒートパイプ構造
US6252937B1 (en) High thermal performance cathode via heat pipes
US20150078533A1 (en) Cooled Stationary Anode for an X-Ray Tube
US2030561A (en) X-ray tube
US2345723A (en) X-ray tube
JP2006302648A (ja) 回転陽極ｘ線管装置
JP6153314B2 (ja) Ｘ線透過型ターゲット及びその製造方法
US20180151324A1 (en) Heat sink for x-ray tube anode
JP2002042705A (ja) 透過放射型ｘ線管およびその製造方法
US2229152A (en) Rotary anode X-ray tube