DE507618C - Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped - Google Patents

Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped

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Publication number
DE507618C
DE507618C DEP52050D DEP0052050D DE507618C DE 507618 C DE507618 C DE 507618C DE P52050 D DEP52050 D DE P52050D DE P0052050 D DEP0052050 D DE P0052050D DE 507618 C DE507618 C DE 507618C
Authority
DE
Germany
Prior art keywords
anticathode
bell
shaped
cathode
electrode leads
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
DEP52050D
Other languages
German (de)
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.)
PHOENIX ROENTGENROEHRENFABRIKE
Original Assignee
PHOENIX ROENTGENROEHRENFABRIKE
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.)
Publication date
Priority to DEP52050D priority Critical patent/DE507618C/en
Application granted granted Critical
Publication of DE507618C publication Critical patent/DE507618C/en
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details

Description

Röntgenröhre mit Hochvakuum, deren Elektrodenzuleitungen gegeneinander geneigt sind und deren Antikathode glockenförmig ausgebildet ist Bei gashaltigen Röntgenröhren ist es bekannt, zum Schutze gegen das Nachaußengelangen unerwünschter Röntgenstrahlen die Antikathode der Kathode gegenüber mit einer trichterförmigen Aushöhlung zu versehen. Die Wirkung dieses Schutzmittels wird jedoch bei den bekannten Röntgenröhren dadurch zum großen Teile wieder aufgehoben, daß infolge der bei gashaltigen Röntgenröhren notwendigen Anordnung der Kathode vor dem Trichter von der Kathode aus Kathodenstrahlen auch um den Antikathodentrichter herum auf dessen Außenwand sowie auf den Antikathodenstiel auftreffen und dort Röntgenstrahlen hervorrufen, die nach außen gelangen und Schaden stiften.X-ray tube with high vacuum, the electrode leads against each other are inclined and the anticathode is bell-shaped X-ray tubes are known to be undesirable for protection against getting outside X-rays oppose the anticathode to the cathode with a funnel-shaped To provide excavation. The effect of this protective agent is, however, with the known X-ray tubes thereby largely repealed that as a result of the gas-containing X-ray tubes necessary arrangement of the cathode in front of the funnel from the cathode from cathode rays also around the anticathode funnel on its outer wall as well as hit the anticathode handle and cause X-rays there, which get out and cause damage.

Gemäß der Erfindung ist, wie es in einem Ausführungsbeispiel in der Abbildung sches matisch dargestellt ist, bei einer Röntgenröhre a, deren Elektrodenzuleitungen im (vorzugsweise rechten) Winkel zueinander stehen und bei welcher die Antikathode b glockenförmig und zugleich Röntgenstrahlen absorbierend ausgebildet ist, die Kathode c innerhalb des Hohlraumes der Glocke angebracht und so angeordnet und ausgebildet, daß der nutzbar zu machende Röntgenstrahlenkegel innerhalb des beispielsweise ring- oder schraubenlinienförmig gestalteten Glühkörpers der Glühkathode c hindurchgeht, praktisch ohne diesen zu treffen. Erst durch diese Anordnung der Kathode ist die glockenförmige Ausbildung der Antikathode in den Stand gesetzt, ihre Schutzwirkung unbeeinträchtigt auszuüben.According to the invention, as in one embodiment in FIG Figure is shown schematically in the case of an X-ray tube a, whose electrode leads are at (preferably right) angles to each other and at which the anticathode b is bell-shaped and at the same time designed to absorb X-rays, the cathode c mounted within the cavity of the bell and so arranged and designed, that the X-ray cone to be made usable within the, for example, ring- or helically shaped incandescent body of the hot cathode c passes through it, practically without hitting it. Only through this arrangement of the cathode is the The bell-shaped design of the anticathode enables its protective effect to exercise unimpaired.

Der Kathodenträger d ist kegelstumpfförmig, und zwar so ausgebildet, daB er selbst und ein ihn haltender Wulstring e die außerhalb des Brennfleckes f auf der Antikathode etwa entstehenden Röntgenstrahlen weitgehend absorbiert. Dies ist ihm durch seine Anordnung innerhalb der Glockenhöhlung ermöglicht, während bekannte- Röntgenröhren mit teilweise kegelstumpfförmigem Kathodengehäuse des Zusammenwirkens einer umständlichen Anordnung aus Kathodengehäuse, Anodengehäuse und metallener Außemwandung bedürfen.The cathode support d is frustoconical, designed in such a way that that he himself and a bead ring holding him e the outside of the focal point f Any X-rays generated on the anticathode are largely absorbed. this is made possible by its arrangement within the bell cavity, while known- X-ray tubes with partially frustoconical cathode housing of the interaction a cumbersome arrangement of cathode housing, anode housing and metallic Require outer wall.

Bei. der neuen Röntgenröhre kann, wie es zur Erzielung eines kleinen,- scharf begrenrtari"; Brennfleckes auf der Antikathode erwünscht ist, die Glühkathode c ganz nahe an den auf dem Boden der Glockenhöhlung befindlichen Antikathodenspiegel herangebracht werden.At. the new X-ray tube can, as it is for the achievement of a small, sharply limited "; the focal point on the anticathode is desirable, the hot cathode c very close to the anti-cathode mirror located on the bottom of the bell cavity be brought up.

Claims (1)

PATENTANSPRÜCHE: i. Röntgenröhre mit Hochvakuum, deren Elektrodenzuleitungen gegeneinander geneigt sind und deren Antikathode glockenförmig und Röntgenstrahlen in weitgehendem Maße absorbierend ausgebildet ist, dadurch gekennzeichnet, daß der Boden der glockenförmigen Antikathode den Antikathodenspiegel enthält und die Kathode, dem nutzbaren Röntgenstrahlenkegel den Durchtritt freilassend, innerhalb der Glockenhöhlung liegt. s. Röntgenröhre nach Anspruch i, dadurch gekennzeichnet, daß der kegelstumpfförmige Kathodenträger so ausgebildet und angeordnet ist und aus solchem Baustoff besteht, daß er die außerhalb des Brennfleckes entstehenden Röntgenstrahlen weitgehend absorbiert. PATENT CLAIMS: i. X-ray tube with high vacuum, whose electrode leads are inclined towards each other and whose anticathode is bell-shaped and largely absorbs X-rays, characterized in that the base of the bell-shaped anticathode contains the anticathode mirror and the cathode, which allows the usable X-ray cone to pass through, lies within the bell cavity. See X-ray tube according to claim 1, characterized in that the frustoconical cathode carrier is designed and arranged and consists of such a building material that it largely absorbs the X-rays arising outside the focal point.
DEP52050D 1926-01-02 Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped Expired DE507618C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP52050D DE507618C (en) 1926-01-02 Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP52050D DE507618C (en) 1926-01-02 Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped
DE626902X 1926-01-02

Publications (1)

Publication Number Publication Date
DE507618C true DE507618C (en) 1930-09-18

Family

ID=25945634

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP52050D Expired DE507618C (en) 1926-01-02 Roentgen tubes with high vacuum, the electrode leads are inclined towards each other and the anticathode is bell-shaped

Country Status (1)

Country Link
DE (1) DE507618C (en)

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