AT67964B - High voltage rectifier for operating X-ray tubes. - Google Patents

High voltage rectifier for operating X-ray tubes.

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Publication number
AT67964B
AT67964B AT67964DA AT67964B AT 67964 B AT67964 B AT 67964B AT 67964D A AT67964D A AT 67964DA AT 67964 B AT67964 B AT 67964B
Authority
AT
Austria
Prior art keywords
ray tubes
tubes
operating
high voltage
voltage rectifier
Prior art date
Application number
Other languages
German (de)
Original Assignee
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 Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT67964B publication Critical patent/AT67964B/en

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  • X-Ray Techniques (AREA)

Description

  

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   Fig. 5 zeigt eine Einrichtung, mit welcher gleichzeitig   vier   Röntgenröhren betrieben werden sollen. Die Sekundärspule des Transformutors T ist an die mittleren festen Kontakte k3, k4 an- geschlossen, an deren jeden ausserdem je zwei der Röhren einseitig parallel angelegt sind. Die anderen   Zuführungen   zu den Röhren sind mit je einem der äusseren festen Kontakte verbunden. 



   Um die Röhre abwechselnd zum Aufleuchten zu bringen, sind an dem Gleichrichter die achs- parallelen Leiter p2 und p4 entfernt, so dass die einzelnen   Römenschaltungen   allein durch die
Leiter pi und p3 hergestellt werden. Im dargestellten Augenblick erhält die   Röntgenröhre   R1
Strom. Nach einer Umdrehung der Welle um 90  in der   Pfeihichtung   wird der Strom über den
Leiter p der Röhre   R zugeführt. Darauf kommen   die Röhren Ra und    nacheinander*an   die
Reihe, worauf sich der Vorgang in derselben Reihenfolge wiederholt. 



   Fig. 6 zeigt das Bild der Stromverteilung auf die verschiedenen Röhren, aus dem sich ergibt, dass jede der Röhren nach jeder Erregung eine Ruhepause   iür   die Zeit von drei Stromhalbwellen oder drei halben Perioden des Wechselstromes erhält. Es wird auch hier bei der gleichzeitigen
Benutzung von vier Röhren derselbe schonende Betrieb wie bei der in Fig. 2 zunächst für die   Röhre     ss   veranschaulichten Weise erreicht. 



   Das Mittel, durch Entfernung einzelner beweglicher Leiter des Gleichrichters nach Wunsch grössere Ruhepausen zwischen den einzelnen Stromstössen zu erhalten, kann natürlich nicht nur beim Betrieb mehrerer Röhren, sondern auch nur einer Röhre mit Vorteil verwendet werden. 



   PATENT-ANSPRÜCHE :
1 Hochspannungsgleichrichter mit festen, emander diametral gegenüberstehenden Kontakten und synchron zum antreibenden Wechselstrom umlaufenden Leitern zum Betrieb von Röntgenröhren, dadurch   gekennzeichnet,   dass einzelne der beweglichen Leiter des Gleich- richters abschaltbar sind, derart, dass   zur Schonung   der   Röhren   diesen Halbwellen in Abständen von mehr als einer halben Periode des Wechselstromes zugeführt werden können. 
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   5 shows a device with which four x-ray tubes are to be operated simultaneously. The secondary coil of the transformer T is connected to the central fixed contacts k3, k4, each of which also has two of the tubes placed parallel on one side. The other leads to the tubes are each connected to one of the outer fixed contacts.



   In order to make the tube light up alternately, the axially parallel conductors p2 and p4 have been removed from the rectifier, so that the individual Roman circuits are only through the
Heads pi and p3 are made. At the moment shown, the X-ray tube receives R1
Electricity. After one revolution of the shaft by 90 in the direction of arrow, the current is over the
Conductor p of the tube R supplied. Then come the tubes Ra and one after the other * to the
Row, after which the process is repeated in the same order.



   6 shows the image of the current distribution to the various tubes, from which it follows that each of the tubes receives a rest period of three current half-waves or three half periods of the alternating current after each excitation. It will also be here at the same time
Using four tubes, the same gentle operation is achieved as in the manner initially illustrated in FIG. 2 for the tube ss.



   The means of obtaining longer rest pauses between the individual current surges by removing individual movable conductors of the rectifier, if desired, can of course be used to advantage not only when operating several tubes but also only one tube.



   PATENT CLAIMS:
1 high-voltage rectifier with fixed, diametrically opposed contacts and synchronous to the driving alternating current circulating conductors for the operation of X-ray tubes, characterized in that some of the movable conductors of the rectifier can be switched off, so that to protect the tubes, these half-waves at intervals of more than half a cycle of the alternating current can be supplied.
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Claims (1)

t Anspruch I, dadurch gekennzeichnet, dass mehrere Röntgenröhren derart zwischen je einen Gleichspannung führenden festen Kontakt und einen Transfurmatorpol geschaltet sind, dass EMI2.2 t Claim I, characterized in that a plurality of X-ray tubes are connected between a fixed contact carrying direct voltage and a transformer pole each in such a way that EMI2.2
AT67964D 1912-10-30 1913-10-21 High voltage rectifier for operating X-ray tubes. AT67964B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE67964X 1912-10-30

Publications (1)

Publication Number Publication Date
AT67964B true AT67964B (en) 1915-02-10

Family

ID=5634188

Family Applications (1)

Application Number Title Priority Date Filing Date
AT67964D AT67964B (en) 1912-10-30 1913-10-21 High voltage rectifier for operating X-ray tubes.

Country Status (1)

Country Link
AT (1) AT67964B (en)

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