DE176008C - - Google Patents
Info
- Publication number
- DE176008C DE176008C DENDAT176008D DE176008DA DE176008C DE 176008 C DE176008 C DE 176008C DE NDAT176008 D DENDAT176008 D DE NDAT176008D DE 176008D A DE176008D A DE 176008DA DE 176008 C DE176008 C DE 176008C
- Authority
- DE
- Germany
- Prior art keywords
- thorium
- tubes
- electrodes
- anticathode
- melting
- 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.)
- Active
Links
- 241000295146 Gallionellaceae Species 0.000 claims 1
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 6
- 229910052776 Thorium Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000010309 melting process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
- H01J35/112—Non-rotating anodes
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Röntgenröhre. Patentiert im Deutschen Reiche vom 15. März 1905 ab. X-ray tube. Patented in the German Empire on March 15, 1905.
Um bei Röntgenröhren einen hohen Nutzeffekt und lange Lebensdauer zu erzielen, ist es wichtig, für die Elektroden, besonders die Antikathode, Metalle zu verwenden, die hohen Schmelzpunkt und geringe Zerstäubbarkeit besitzen. Außerdem müssen die Metalle mechanisch verarbeitet werden können. Das bisher vielfach verwendete Platin ist zwarmechanisch verarbeitbar, sein SchmelzpunktIn order to achieve a high efficiency and a long service life with X-ray tubes it is important to use metals that are high for the electrodes, especially the anticathode Have melting point and low atomizability. In addition, the metals must be able to be processed mechanically. That Platinum, which has been widely used up to now, can be processed mechanically, its melting point
ίο ist aber verhältnismäßig niedrig und außerdem zerstäubt es leicht. Chrom, das in Bezug auf Schmelzpunkt und Zerstäubbarkeit genügen würde, kann dagegen mechanisch nicht verarbeitet werden.ίο is but relatively low and moreover easily atomizes it. Chromium, which is sufficient in terms of melting point and atomizability on the other hand, cannot be processed mechanically.
Als zweckmäßiges Metall für Elektroden, besonders für die Antikathode, hat sich Thorium erwiesen, das den obengenannten Ansprüchen vollkommen genügt und außerdem gegen elektrische Beanspruchung sehr widerstandsfähig ist. Das Thoriummetall ist sehr leicht mechanisch verarbeitbar, wenn es in Gestalt homogener Körper verwendet wird, wie man sie erhält, wenn man das Thoriummetall einem Schmelzprozeß unterwirft. Das Verfahren, nach welchem ein solcher Schmelzprozeß ausgeführt werden kann, ist beschrieben in den Patentschriften 152848, 152870 und 153826. Da die Röhrenwände sich wegen der geringen Zerstäubbarkeit nur in ganz verschwindendem Maße beschlagen, so haben Röhren mit Elektroden aus Thorium eine sehr hohe Lebensdauer. Auch der Nutzeffekt solcher Röhren ist sehr hoch.Thorium has proven to be a suitable metal for electrodes, especially for the anticathode proved that it fully meets the above requirements and is also very resistant to electrical stress is. The thorium metal is very easy to process mechanically if it is in Shape of homogeneous body is used, as it is obtained when using the thorium metal subjected to a melting process. The method by which such a melting process can be carried out is described in patents 152848, 152870 and 153826. Since the tube walls are only completely If the amount of fogging is negligible, tubes with electrodes made of thorium have one very long service life. The efficiency of such tubes is also very high.
Vorteilhaft läßt sich das Thorium auch in Geißlerröhren und Teslaröhren verwenden.The thorium can also be used advantageously in Geissler tubes and Teslar tubes.
Pate nt-A ν Spruch:Godfather nt-A ν saying:
Röntgenröhre, dadurch gekennzeichnet, daß die Elektroden, insbesondere die Antikathode, durch mechanische Bearbeitung eines homogenen, durch Schmelzung gewonnenen Stücks aus Thoriummetall hergestellt sind.X-ray tube, characterized in that the electrodes, in particular the anticathode, made by machining a homogeneous piece of thorium metal obtained by melting are.
12. Auflage, ausgegeben am 10. November iqoö.i12th edition, issued on November 10th iqoö.i
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE176008C true DE176008C (en) |
Family
ID=440601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT176008D Active DE176008C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE176008C (en) |
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0
- DE DENDAT176008D patent/DE176008C/de active Active
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