DE384133C - X-ray filter - Google Patents

X-ray filter

Info

Publication number
DE384133C
DE384133C DES59125D DES0059125D DE384133C DE 384133 C DE384133 C DE 384133C DE S59125 D DES59125 D DE S59125D DE S0059125 D DES0059125 D DE S0059125D DE 384133 C DE384133 C DE 384133C
Authority
DE
Germany
Prior art keywords
ray filter
filter
conductive
mass
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
Application number
DES59125D
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens 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 and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Priority to DES59125D priority Critical patent/DE384133C/en
Application granted granted Critical
Publication of DE384133C publication Critical patent/DE384133C/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
    • G21K1/10Scattering devices; Absorbing devices; Ionising radiation filters

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiation-Therapy Devices (AREA)

Description

Filter für Röntgenstrahlen. Die bei der therapeutischen Verwendung der Röntgenstrahlen zum Schutze des Patienten gegen weiche, leicht absorbierbare Strahlung angeordneten Filter bestehen allgemein aus metallischen Schichten in metallischer Fassung, sind also gute Leiter der Elektrizität. Da sie in der Nachbarschaft von Hochspannung führenden Apparaten verwendet werden, so treten vornehmlich infolge. Elektronenstrahlung, die von den durch die Röntgenstrahlen getroffenen Teilen ausgeht, Ladungen in ihnen auf, deren Stärke auch von der Größe des Filters abhängt. Da diese nicht unbeträchtlich ist, können Ladungen in solcher Stärke auftreten, daß ihr Ausgleich den Patienten erschrecken, dadurch belästigen und sogar zu unvorsichtigen Bewegungen veranlassen kann. Es erschien daher geboten, das Filter nichtleitend zu machen, während als Absorptionsmaterial des Filters doch ein leitender Stoff oder ein Metall verwendet werden sollte.X-ray filters. Those in therapeutic use of X-rays to protect the patient against soft, easily absorbable Filters arranged in radiation generally consist of metallic layers in metallic So they are good conductors of electricity. Since they are in the neighborhood of High-voltage equipment is used, so occur primarily as a result. Electron radiation emanating from the parts hit by the X-rays, Charges in them, the strength of which also depends on the size of the filter. This one is not inconsiderable, charges can appear in such strength that they are balanced frighten the patient, thereby annoying them and even making careless movements can cause. It therefore seemed advisable to make the filter non-conductive, while the absorption material of the filter is a conductive material or a metal should be used.

Diese Schwierigkeit wird gemäß der Erfindung dadurch vermieden, daß das Metall nicht in Form einer kompakten Masse, sondern als feines Pulver-in Isoliermasse eingebettet verwendet wird, so daß die Masse im ganzen nichtleitend ist. Zu dem gleichen Zweck kann auch der Rahmen aus isolierendem Material hergestellt werden.This difficulty is avoided according to the invention in that the metal not in the form of a compact mass, but as a fine powder in insulating mass embedded is used, so that the mass is non-conductive as a whole. In addition The frame can also be made of insulating material for the same purpose.

Beispielsweise kann man aus Aluminiumpulver und einer Masse aus Zeresin und Kolophonium eine Platte herstellen, die bei 8,5 mm Stärke dieselbe absorbierende Wirkung hat, wie eine Aluminiumplatte von x mm Stärke.For example, aluminum powder and a mass of ceresin can be used and rosin make a sheet that is 8.5 mm thick and absorbs the same Has the same effect as an aluminum plate x mm thick.

Es ergibt sich als weiterer Vorteil, daß die Durchlässigkeit der Platte durch Änderung der Menge des Metallpulvers sich ohne Schwierigkeit beliebig fein abstufen läßt.There is a further advantage that the permeability of the plate by changing the amount of metal powder it becomes as fine as desired without difficulty can be graded.

Claims (1)

PATENT-ANSPRUCIi: Filter für Röntgenstrahlen, dadurch gekennzeichnet, daß es aus einer nichtleitenden Mischung eines leitenden, Strahlen absorbierenden Stoffes oder Metallpulvers, insbesondere Aluminiumpulvers, mit einer schmelzbaren Isoliermasse, insbesondere Zeresin und Kolophonium besteht.PATENT-ANSPRUCIi: filter for X-rays, characterized in that it is made of a non-conductive mixture of a conductive, radiation-absorbing Substance or metal powder, in particular aluminum powder, with a fusible Insulating compound, in particular ceresin and rosin.
DES59125D 1922-03-07 1922-03-07 X-ray filter Expired DE384133C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES59125D DE384133C (en) 1922-03-07 1922-03-07 X-ray filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES59125D DE384133C (en) 1922-03-07 1922-03-07 X-ray filter

Publications (1)

Publication Number Publication Date
DE384133C true DE384133C (en) 1923-10-25

Family

ID=7493054

Family Applications (1)

Application Number Title Priority Date Filing Date
DES59125D Expired DE384133C (en) 1922-03-07 1922-03-07 X-ray filter

Country Status (1)

Country Link
DE (1) DE384133C (en)

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