DE482533C - Incandescent cathode x-ray tube - Google Patents

Incandescent cathode x-ray tube

Info

Publication number
DE482533C
DE482533C DEP54505D DEP0054505D DE482533C DE 482533 C DE482533 C DE 482533C DE P54505 D DEP54505 D DE P54505D DE P0054505 D DEP0054505 D DE P0054505D DE 482533 C DE482533 C DE 482533C
Authority
DE
Germany
Prior art keywords
ray tube
ray
rays
incandescent cathode
usable
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
DEP54505D
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.)
Filing date
Publication date
Application filed by PHOENIX ROENTGENROEHRENFABRIKE filed Critical PHOENIX ROENTGENROEHRENFABRIKE
Priority to DEP54505D priority Critical patent/DE482533C/en
Application granted granted Critical
Publication of DE482533C publication Critical patent/DE482533C/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Description

Glühkathoden-Röntgenröhre Bei Radiumpräparaten ist es bekannt, auf der Wandung des Behälters des Präparates einen Belag aus Stoffen anzubringen, die unter dem Einfluß der Strahlen fluoreszieren, um damit das den Sinnen nicht unmittelbar erkennbare Vorhandensein der wirksamen Strahlen .dem Auge anzuzeigen.Hot cathode X-ray tube It is known to use radium specimens the wall of the container of the preparation to attach a covering made of substances that fluoresce under the influence of the rays so as not to immediately affect the senses visible presence of the effective rays. to indicate to the eye.

Auch bei manchen Glühkathoden-Röntgenröhren ist, beispielsweise infolge Verdecktseins der Glühkathode durch Blenden o. dgl., mit dem Auge nicht erkennbar, ob sie sich im Betriebe befinden oder nicht.Also with some hot cathode X-ray tubes, for example as a result Concealment of the hot cathode by screens or the like, not visible to the eye, whether they are in the company or not.

Derartige Röntgenröhren wie die genannten Behälter von Radiumpräparaten mit fluoreszierenden Stoffen zu belegen, ist nicht angängig, weil die unter dem Einfluß von Röntgenstrahlen gut wahrnehmbar fluoreszierenden Stoffe chemische Verbindungen sind, die Elemente hohen Atomgewichts oder großer Ordnungszahl enthalten. Sie sind daher wenig durchlässig für Röntgenstrahlen. Diese Stoffe würden, wenn man sie im nutzbaren Röntgenstrahlenkegel anordnet, sich im Röntgenbilde störend abzeichnen oder, wenn sie völlig gleichmäßig angeordnet würden, eine unerwünschte, merkliche Schwächung der Röntgenstrahlen bedingen.Such X-ray tubes like the aforementioned containers for radium preparations Covering with fluorescent materials is not acceptable because the under the Influence of X-rays easily perceptible fluorescent substances chemical compounds containing elements of high atomic weight or large atomic number. they are therefore hardly permeable to X-rays. These substances would, if you put them in the usable X-ray cone arranged, emerge disturbing in the X-ray images or, if they were arranged perfectly evenly, an undesirable, noticeable one Cause weakening of the X-rays.

Gemäß der Erfindung ist ein Belag aus unter dem Einfluß von Röntgenstrahlen fluoreszierenden Stoffen nur am Rande des nutzbaren Röntgenstrahlenkegels, z. B. auf der Außenseite der Wandung der Röntgenröhre, angebracht. Da im allgemeinen die äußersten Strahlen des nutzbaren Röntgenstrahlenbündels nicht zur Bilderzeugung verwendet werden, sind Störungen im Randgebiet belanglos. Das Aufleuchten der von den Randstrahlen des nutzbaren Röntgenstrahlenbündels getroffenen Stellen der Wandung der Röntgenröhre genügt aber vollständig für den vorliegenden Zweck.According to the invention, a covering is made under the influence of X-rays fluorescent substances only at the edge of the usable X-ray cone, e.g. B. on the outside of the wall of the X-ray tube. Since in general the outermost rays of the usable X-ray beam are not used for imaging are used, disturbances in the peripheral area are irrelevant. The lighting up of the edge rays of the usable X-ray beam hit points of the wall the X-ray tube is completely sufficient for the present purpose.

Claims (1)

PATENTANSPRUCH: Glühlzathoden-Röntgenröhre, gekennzeichnet durch einen am Rande des nutzbaren Röntgenstrahlenkegels, z. B. auf der Außenseite der Wandung der Röntgenröhre, angebrachten Belag aus unter dem Einfluß von R'ö'ntgenstrahlen fluoreszierendem Stoff. PATENT CLAIM: Incandescent cathode X-ray tube, characterized by a on the edge of the usable X-ray cone, z. B. on the outside of the wall of the X-ray tube, attached covering made of substance fluorescing under the influence of X-ray radiation.
DEP54505D 1925-12-25 1925-12-25 Incandescent cathode x-ray tube Expired DE482533C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP54505D DE482533C (en) 1925-12-25 1925-12-25 Incandescent cathode x-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP54505D DE482533C (en) 1925-12-25 1925-12-25 Incandescent cathode x-ray tube

Publications (1)

Publication Number Publication Date
DE482533C true DE482533C (en) 1929-09-18

Family

ID=7387119

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP54505D Expired DE482533C (en) 1925-12-25 1925-12-25 Incandescent cathode x-ray tube

Country Status (1)

Country Link
DE (1) DE482533C (en)

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