DE7310930U - DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS - Google Patents

DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS

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Publication number
DE7310930U
DE7310930U DE19737310930 DE7310930U DE7310930U DE 7310930 U DE7310930 U DE 7310930U DE 19737310930 DE19737310930 DE 19737310930 DE 7310930 U DE7310930 U DE 7310930U DE 7310930 U DE7310930 U DE 7310930U
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DE
Germany
Prior art keywords
sample
radiation
ray tube
roentine
house
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
DE19737310930
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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.)
Hoesch Werke AG
Original Assignee
Hoesch 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 Hoesch Werke AG filed Critical Hoesch Werke AG
Priority to DE19737310930 priority Critical patent/DE7310930U/en
Publication of DE7310930U publication Critical patent/DE7310930U/en
Expired legal-status Critical Current

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Description

Hoesch Werke Aktiengesellschaft. 46 Dortmund. Eberhardstraße 12Hoesch Werke Aktiengesellschaft. 46 Dortmund. Eberhardstrasse 12 Vorrichtung zur betrieblichen RöntcrenfluoreszenzanalvseDevice for operational X-ray fluorescence analysis

Die Neuerung bezieht sich a"f eine Vorrichtung zur betrieblichen Röntgenfluoreszenzanalyse bei der die durch eine Primärstrahlung ausgelöste Eigenstrahlung der Probe mit einen? snergiedispersiven Detektorsystem gemessen wird.The innovation relates to a "f a device for operational X-ray fluorescence analysis in which the natural radiation of the sample triggered by a primary radiation with a? energy dispersive Detector system is measured.

Bei der Röntgenemissionsanalyse werden die zur Identifizierung herangezogenen charakteristischen Röntgenstrahlen dadurch erzeugt, daß die zu analysierende Probe mit einer primären Röntgen-, Gamma- oder Elektronenstrahlung beaufschlagt wird. Der Nachweis der charakteristischen Strahlung erfolgt entweder wellenlängendispersiv, etwa mit Hilfe eines Goniometers, oder neuerdings auch in Anlagen, die sogenannte energiedispersive Detektoren, z.B. Si(Li)-Kristalle enthalten.In X-ray emission analysis, the characteristic X-rays used for identification are generated by that the sample to be analyzed is exposed to a primary X-ray, gamma or electron beam. Of the The characteristic radiation is detected either in a wavelength-dispersive manner, for example with the aid of a goniometer, or recently also in systems that contain so-called energy dispersive detectors, e.g. Si (Li) crystals.

Für den betrieblichen Dauereinsatz erweist sich die Verwendung radioaktiver Isotope als Strahlenquelle zwar vielfach als vorteilhaft, auf diese Weise r^e^den jedoch dann keine befriedigenden Ergebnisse erzielt, wenn die Nutzstrahlenausbeute pro Zeiteinheit gering ist und die Testzeit knapp bemessen ist. In solchen Fällen erweist sich die Anregung mit von einer Röntgenröhre ausgesandten primären Röntgenstrahlen als erforderlich. Die mit derFor operational continuous use, the use of radioactive isotopes proves true in many cases to be beneficial as a radiation source, but then achieved satisfactory results in this way, r ^ e ^ when the Nutzstrahlenausbeute per unit time is small and the test time is limited. In such cases, excitation with primary X-rays emitted by an X-ray tube proves to be necessary. The one with the

Langzeitstabilität der an der Röntgenröhre liegenden Hochspannung verbundene Belastung einer konventionellen Röntgenröhre erfordert nieröei jedoch eine intensive und aufwendige Kühlung, insbesondere der Antikathode.Long-term stability of the high voltage connected to the X-ray tube load of a conventional X-ray tube requires, however, an intensive and complex one Cooling, especially the anticathode.

Neuerungsgemäß wird nunmehr bei einer Vorrichtung zur Röntgenfluoreszenzanalyse der eingange umrissenen Art vorgeschlagen, oberhalb der Probe mit Strahlvmgsrichtung auf die Probe eine ringförmige Röntgenröhre zur Erzeugung der Primärstrahlung vorzusehen und zentrisch dazu außerhalb des Strahlenganges der Röntgenröhre den Detektor.According to the innovation, it is now proposed in a device for X-ray fluorescence analysis of the type outlined at the beginning, Above the sample with the beam direction on the sample, an annular X-ray tube for generating the primary radiation to be provided and centrically to this outside of the beam path of the X-ray tube the detector.

Die aus der ringförmigen Röntgenröhre resultierende größere Fläche der Antikathode erbringt bei geringerer spezifischer Erregerleistung eine ausreichende Intensität der Primärstrahlung. Auf diese Weise erübrigt sich die sonst erforderliche aufwendige Kühlung. Ein weiterer Vorteil der neuerungsgemäß ausgestatteten Vorrichtung ist darin zu sehen, daß die zu analysierende Probe symmetrisch beaufschlagt wird.The larger area of the anticathode resulting from the ring-shaped X-ray tube produces a smaller specific surface Excitation power a sufficient intensity of the primary radiation. In this way, there is no need for the otherwise expensive Cooling. A further advantage of the device equipped according to the invention is to be seen in the fact that the sample to be analyzed is applied symmetrically.

Die Neuerung ist anhand der Zeichnung weitergehend erläutert.The innovation is further explained with the aid of the drawing.

Bei der im übrigen einen Probenhalter 2 und einen Detektor 3 aufweisenden Vorrichtung besteht die Strahlungsquelle aus einer oberhalb der Probe 4 angeordneten ringförmigen Röntgenröhre 1 Antikathode 11.In the device, which also has a sample holder 2 and a detector 3, the radiation source consists of one Ring-shaped X-ray tube 1, anticathode 11, arranged above the sample 4.

Die von der ringförmigen Röntgenröhre 1 auegehende Primär-The primary from the ring-shaped X-ray tube 1 XU uSii Fj.w&S 4 viii« ChaASLkLsjri.Sul.BCh«XU uSii Fj.w & S 4 viii «ChaASLkLsjri.Sul.BCh« Sekundärstrahlung 7 aus, die den Detektor 3 beaufschlagt.Secondary radiation 7, which acts on the detector 3.

Claims (1)

Hoesch Werke Aktiengesellschaft, 46 Dortmund, Eberhardstraße 12 Hoesch Werke Aktiengesellschaft, 46 Dortmund, Eberhardstrasse 12 Anspruchclaim Vorrichtung zur betrieblichen Röntgenfluoreszenzanalyse bei 3er die durch eine Primärstrahlung ausgelöste Eigenstrahlung der Probe mit einem energiedispersiven Detektorsystem gemessen wird, dadurch gekennzeichnet, daß oberhalb der Probe eine ringförmige Röntgenröhre (1) mit Strahlungsrichtung auf die Probe angeordnet ist und zentrisch dazu außerhalb des Strahlenganges der Röntgenröhre (1) der Detektor (3).Device for operational X-ray fluorescence analysis in the case of 3 series, the intrinsic radiation of the sample triggered by primary radiation is measured with an energy-dispersive detector system, characterized in that an annular X-ray tube (1) is arranged above the sample with the direction of radiation on the sample and centrally to it outside the beam path of the X-ray tube ( 1) the detector (3).
DE19737310930 1973-03-23 1973-03-23 DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS Expired DE7310930U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19737310930 DE7310930U (en) 1973-03-23 1973-03-23 DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19737310930 DE7310930U (en) 1973-03-23 1973-03-23 DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS

Publications (1)

Publication Number Publication Date
DE7310930U true DE7310930U (en) 1973-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19737310930 Expired DE7310930U (en) 1973-03-23 1973-03-23 DEVICE FOR IN-HOUSE ROENTINE FLUORESCENT ANALYSIS

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Country Link
DE (1) DE7310930U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111187A1 (en) * 1981-03-21 1982-09-30 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Device for continuously measuring element contents in pulps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111187A1 (en) * 1981-03-21 1982-09-30 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Device for continuously measuring element contents in pulps

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