ATE139404T1 - METHOD FOR GENERATING HIGH-CONTRAST DIAGNOSTIC X-RAY IMAGE AND CIRCUIT ARRANGEMENT THEREFOR - Google Patents

METHOD FOR GENERATING HIGH-CONTRAST DIAGNOSTIC X-RAY IMAGE AND CIRCUIT ARRANGEMENT THEREFOR

Info

Publication number
ATE139404T1
ATE139404T1 AT92114171T AT92114171T ATE139404T1 AT E139404 T1 ATE139404 T1 AT E139404T1 AT 92114171 T AT92114171 T AT 92114171T AT 92114171 T AT92114171 T AT 92114171T AT E139404 T1 ATE139404 T1 AT E139404T1
Authority
AT
Austria
Prior art keywords
voltage
tube
converter
ray
ray tube
Prior art date
Application number
AT92114171T
Other languages
German (de)
Inventor
Klaus-Peter Bork
Original Assignee
Bork Klaus Peter
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 Bork Klaus Peter filed Critical Bork Klaus Peter
Application granted granted Critical
Publication of ATE139404T1 publication Critical patent/ATE139404T1/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/10—Power supply arrangements for feeding the X-ray tube
    • H05G1/20—Power supply arrangements for feeding the X-ray tube with high-frequency AC; with pulse trains
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/46—Combined control of different quantities, e.g. exposure time as well as voltage or current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/60—Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

In order to obtain high-contrast, diagnostic X-ray photographs using an X-ray generator which is connected to an AC voltage network and has a converter, high-voltage rectifier and X-ray tube connected to the output of the latter, and having a control unit, the converter increasing the frequency of the AC current to the converter frequency, as a frequency converter, and increasing its voltage to the desired high voltage, as a voltage converter, and the switching unit controlling the tube current, tube voltage and exposure duration, the voltage of the X-ray tube is reduced during the exposure time at least once from an upper limit value which can be predetermined to a lower limit value which can likewise be determined; a circuit arrangement for the purpose is furthermore proposed, in which at least one measurement input (E1; E2; E3) for the voltage to the X-ray tube (3), as well as a modulation stage (5), are allocated to the converter (2), which modulation stage (5) passes on the measurement of the tube voltage as a control signal to a modulator (4) which produces the control signal for reducing the tube voltage and increasing it again and is connected to the control section (2.2) and to the grid of the electron tube (7) which is connected upstream of the X-ray tube (3), and to the grid of the X-ray tube (3'). <IMAGE>
AT92114171T 1991-08-23 1992-08-20 METHOD FOR GENERATING HIGH-CONTRAST DIAGNOSTIC X-RAY IMAGE AND CIRCUIT ARRANGEMENT THEREFOR ATE139404T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4127983A DE4127983A1 (en) 1991-08-23 1991-08-23 METHOD FOR GENERATING CONTRASTING DIAGNOSTIC X-RAY X-RAY IMAGES AND CIRCUIT ARRANGEMENT THEREFOR

Publications (1)

Publication Number Publication Date
ATE139404T1 true ATE139404T1 (en) 1996-06-15

Family

ID=6438949

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92114171T ATE139404T1 (en) 1991-08-23 1992-08-20 METHOD FOR GENERATING HIGH-CONTRAST DIAGNOSTIC X-RAY IMAGE AND CIRCUIT ARRANGEMENT THEREFOR

Country Status (3)

Country Link
EP (1) EP0529505B1 (en)
AT (1) ATE139404T1 (en)
DE (2) DE4127983A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL119594A0 (en) * 1996-11-10 1997-02-18 Inbar Dan Wide latitude medical images
DE19933537B4 (en) * 1998-08-18 2005-03-17 Siemens Ag X-ray computed tomography apparatus with means for modulating the x-ray power of an x-ray source
TWI782418B (en) * 2021-02-09 2022-11-01 能資國際股份有限公司 Method and device for driving high-voltage electron radiation tube with positive and negative pulses
DE102021108456A1 (en) 2021-04-01 2022-10-06 Energy Resources International Co.,Ltd. Driving device for driving a high voltage X-ray tube and method for driving the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2224366A1 (en) * 1972-05-18 1973-11-29 Siemens Ag X-RAY DIAGNOSTIC APPARATUS FOR THE PRODUCTION OF X-RAYS WITH AN EXPOSURE MACHINE
DE2304427A1 (en) * 1973-01-30 1974-08-08 Siemens Ag X-RAY DIAGNOSTIC DEVICE WITH MEANS TO CHANGE THE X-RAY PIPE VOLTAGE
JPS58216397A (en) * 1982-06-11 1983-12-16 Toshiba Corp X-ray diagnostic device
US4481654A (en) * 1982-09-09 1984-11-06 General Electric Company X-Ray tube bias supply
US4763343A (en) * 1986-09-23 1988-08-09 Yanaki Nicola E Method and structure for optimizing radiographic quality by controlling X-ray tube voltage, current, focal spot size and exposure time
US4851983A (en) * 1988-01-27 1989-07-25 Gendex Corporation KVP regulator and resonant circuit for high frequency medical x-ray generator
US5007073A (en) * 1989-12-20 1991-04-09 Gendex Corporation Method and apparatus for obtaining a selectable contrast image in an X-ray film

Also Published As

Publication number Publication date
EP0529505A1 (en) 1993-03-03
EP0529505B1 (en) 1996-06-12
DE4127983A1 (en) 1993-02-25
DE59206536D1 (en) 1996-07-18

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee