DE616314C - Aperture device for X-ray tubes - Google Patents

Aperture device for X-ray tubes

Info

Publication number
DE616314C
DE616314C DES85842D DES0085842D DE616314C DE 616314 C DE616314 C DE 616314C DE S85842 D DES85842 D DE S85842D DE S0085842 D DES0085842 D DE S0085842D DE 616314 C DE616314 C DE 616314C
Authority
DE
Germany
Prior art keywords
diaphragm
strips
tube
aperture device
opening
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
DES85842D
Other languages
German (de)
Inventor
Leonhard Raab
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.)
Siemens Reiniger Werke AG
Original Assignee
Siemens Reiniger Werke AG
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 Siemens Reiniger Werke AG filed Critical Siemens Reiniger Werke AG
Priority to DES85842D priority Critical patent/DE616314C/en
Application granted granted Critical
Publication of DE616314C publication Critical patent/DE616314C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21KTECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Description

Blendenvorrichtung für Röntgenröhren Es- ist bereits vorgeschlagen worden, vor der Röntgenröhre mehrere Blenden in zueinander parallelen Ebenen anzuordnen, um alle Strahlen, die zur Bilderzeugung nicht nötig sind, also auch störende Sekundärstrahlen, abzublenden. Bei diesemVorschlag sind zwei zueinander paralleleBlenden zwischenRöhre und Objekt angeordnet, und es kann danach auch eine dritte Blende zwischen Objekt und photographischer -Schicht eingeschaltet werden, die sich selbsttätig und proportional der Blendenöffnung der der Röhre am nächsten liegenden, z. B. nach Art einer Irisblende ausgebildeten Blende verengen und erweitern läßt.Aperture device for X-ray tubes It has already been proposed have been to arrange several diaphragms in front of the X-ray tube in mutually parallel planes, to remove all rays that are not required for image generation, including interfering secondary rays, to be dimmed. In this proposal there are two parallel apertures between the tubes and object arranged, and there can then also a third aperture between object and photographic layer are switched on, which are automatic and proportional the aperture of the closest to the tube, e.g. B. in the manner of an iris diaphragm trained aperture can narrow and expand.

Diesem Bekannten gegenüber besteht die Erfindung im wesentlichen darin, daß die zwischen Röhre und Objekt im Abstand voneinander angeordneten Blenden, die zwangsläufig proportional zueinander zu verstellen sind, aus Streifen bestehen, die so schmal bemessen sind, daß die Projektionen der auf derselben Seite hintereinanderliegenden Streifen der- verschiedenen Blenden vom Röntgenröhrenfleck aus bei jeder Öffnungsweite der Blendenvorrichtung einander nur wenig überdecken.In relation to this acquaintance, the invention essentially consists in that the diaphragms arranged at a distance from one another between the tube and the object, the inevitably have to be adjusted proportionally to each other, consist of strips, which are so narrow that the projections of the one behind the other on the same side Stripes of the various apertures from the X-ray tube spot at each opening width the diaphragm device overlap each other only a little.

Da diese Blendenteile bekanntlich aus Bleiplatten bestehen, bringt die Verwendung solcher schmalen Streifen - eine sehr erwünschte Gewichtsersparung. Die ganze Blendenvorrichtung kann in einem gemeinsamen Gehäuse- angebracht sein, das durch diese der Erfindung entsprechende Ausbildung der Blendenteile einen verhältnismäßig kleinen Raum einnimmt. Mithin wird ein handliches und leichtes Gerät erzielt, das nicht nur die Abdeckung der unerwünschten Strahlen bewirkt, sondern auch leicht zu handhaben ist, was insbesondere für ärztliche Untersuchungen von Bedeutung ist.Since these panel parts are known to consist of lead plates, brings the use of such narrow strips - a very desirable weight saving. The entire screen device can be mounted in a common housing, the formation of the aperture parts corresponding to the invention by a relatively takes up small space. Thus, a handy and light device is achieved that not only effects the covering of the unwanted rays, but also easily must be handled, which is particularly important for medical examinations.

Des weiteren betrifft die Erfindung eine Ausbildung eines solchen Gerätes, bei der die gleichzeitige Verstellung der Blendenstreifen durch gabelartige Gebilde erfolgt.The invention also relates to a design of such Device in which the simultaneous adjustment of the aperture strips by fork-like Formation takes place.

Die neue Vorrichtung ist in einem Ausführungsbeispiel in der Fig. i samt der sie tragenden Röntgenröhre im Schnitt, in der Fig. z in Vorderansicht und in der Fig. 3 in einem Schnitt längs der Linie A-B der Fig. i schematisch dargestellt.The new device is shown in one embodiment in FIG. i together with the X-ray tube carrying it in section, in FIG. z in front view and shown schematically in FIG. 3 in a section along the line A-B of FIG.

In dem am Schutzgehäuse'a der Röntgenröhre b befestigten, aus einem für Röntgenstrahlen praktisch undurchlässigen Stoff bestehenden Blendengehäuse c mit rechteckigem Grundriß und mit einer Blendenöffnung d in seinem unmittelbar am Schutzgehäuse a angebracliten Boden sind vier je um eine von vier zum Boden parallelen, senkrecht aufeinanderstehenden Achsen f, g, h, h' hebelartig drehbare Gabeln i, k, m, m angeordnet. Zinken o, p, P', q, r, r' sind paarweise durch mindestens je ein Gelenk n, n' miteinander verbunden und nach Art eines Mitnehmers durch Löcher s in vier Reihen ti bis t4, ui bis u4, v, bis v4, z1 bis z4 von für Röntgenstrahlen undurchlässigen Blendenstreifen hindurchgesteckt. Letztere wurden beim Drehen der Gabelzinken um die genannten Achsen f, g, la, h' in parallelen, zur Röntgenstrahlenhauptrichtung senkrechten Führungsbahnen w, x, zo , x bewegt. Hierdurch wird die gewünschte Veränderung der Größe der Blendenöffnung bewirkt.In the diaphragm housing c, which is fastened to the protective housing a of the X-ray tube b and is made of a material practically impermeable to X-rays, with a rectangular outline and a diaphragm opening d in its bottom directly attached to the protective housing a, there are four perpendicular to each other, each around one of four parallel to the bottom Axes f, g, h, h 'arranged like lever-like rotatable forks i, k, m, m. Prongs o, p, P ', q, r, r' are connected in pairs by at least one joint n, n 'each and, like a driver, through holes s in four rows ti to t4, ui to u4, v, to v4 , z1 to z4 of diaphragm strips impermeable to X-rays are inserted through. The latter were moved around the axes f, g, la, h 'in parallel guide tracks w, x, zo , x perpendicular to the main direction of the X-rays when the fork prongs were rotated. This brings about the desired change in the size of the diaphragm opening.

Claims (1)

PATENTANSPRÜCHE: i. Blendenvorrichtung für .Röntgenröhren mit mehreren aus zueinander einstellbaren Teilen bestehenden, in zueinander parallelen Ebenen vor der Röntgenröhre im Abstand voneinander angeordneten und gemeinsam proportional zueinander verstellbaren Blenden, dadurch gekennzeichnet, daß die miteinander zwangsläufig verbundenen Teile (ti, t2, t$, t4; ui, tt2 usw.) der rwischen .der Röhre (b) und dem zu untersuchenden Objekt angeordneten verstellbaren Blenden Streifen sind, die so schmal bemessen sind, daß ihre Projektionen vom Röhrenbrennfleck aus bei jeder Öffnungsweite der Blendenvorrichtung einander nur wenig überlappen. z. Vorrichtung nach Anspruch x, dadurch gekennzeichnet, daß in einem Blendengehäuse (c) ' mit einer Blendenöffnung (d)- in seinem auf der Seite der Strahlenquelle (b) liegenden Boden (e) um Achsen (f, g, h, h') hebelartig drehbare Gabeln (i, k, an, W) angeordnet sind, welche die Reihen der hintereinander angeordneten Streifen der einzelnen Blenden durchdringen und diese zwangsläufig bewegen. . PATENT CLAIMS: i. Aperture device for .Röntgenröhren with a plurality of mutually adjustable parts, arranged in parallel planes in front of the X-ray tube at a distance from one another and jointly proportionally adjustable diaphragms, characterized in that the interconnected parts (ti, t2, t $, t4; ui , tt2 etc.) of the rwischen .der tube (b) and the object to be examined arranged adjustable diaphragms are strips which are so narrow that their projections from the tube focal point from each opening of the diaphragm device only slightly overlap. z. Device according to claim x, characterized in that in a diaphragm housing (c) 'with a diaphragm opening (d) - in its base (e) lying on the side of the radiation source (b ) about axes (f, g, h, h') Lever-like rotatable forks (i, k, an, W) are arranged, which penetrate the rows of the strips of the individual panels arranged one behind the other and inevitably move them. .
DES85842D 1928-05-30 1928-05-30 Aperture device for X-ray tubes Expired DE616314C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES85842D DE616314C (en) 1928-05-30 1928-05-30 Aperture device for X-ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES85842D DE616314C (en) 1928-05-30 1928-05-30 Aperture device for X-ray tubes

Publications (1)

Publication Number Publication Date
DE616314C true DE616314C (en) 1935-07-31

Family

ID=7512612

Family Applications (1)

Application Number Title Priority Date Filing Date
DES85842D Expired DE616314C (en) 1928-05-30 1928-05-30 Aperture device for X-ray tubes

Country Status (1)

Country Link
DE (1) DE616314C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010659B (en) * 1956-01-21 1957-06-19 Siemens Reiniger Werke Ag Device for masking a useful beam bundle
DE1012384B (en) * 1956-04-07 1957-07-18 Siemens Reiniger Werke Ag Radiator head for high energy radiators
DE1096637B (en) * 1954-01-18 1961-01-05 Philips Nv X-ray device for diffraction testing of crystalline substances and procedure for setting the X-ray diffraction goniometer
DE3320998A1 (en) * 1983-06-10 1984-12-13 Dornier System Gmbh, 7990 Friedrichshafen SHOCK SHAFT ADAPTER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096637B (en) * 1954-01-18 1961-01-05 Philips Nv X-ray device for diffraction testing of crystalline substances and procedure for setting the X-ray diffraction goniometer
DE1010659B (en) * 1956-01-21 1957-06-19 Siemens Reiniger Werke Ag Device for masking a useful beam bundle
DE1012384B (en) * 1956-04-07 1957-07-18 Siemens Reiniger Werke Ag Radiator head for high energy radiators
DE3320998A1 (en) * 1983-06-10 1984-12-13 Dornier System Gmbh, 7990 Friedrichshafen SHOCK SHAFT ADAPTER

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