GB689799A - Operation of x-ray tubes - Google Patents

Operation of x-ray tubes

Info

Publication number
GB689799A
GB689799A GB18362/50A GB1836250A GB689799A GB 689799 A GB689799 A GB 689799A GB 18362/50 A GB18362/50 A GB 18362/50A GB 1836250 A GB1836250 A GB 1836250A GB 689799 A GB689799 A GB 689799A
Authority
GB
United Kingdom
Prior art keywords
voltage
valve
control
switch
ray tube
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
GB18362/50A
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.)
GEN RADIOLOGICAL Ltd
Original Assignee
GEN RADIOLOGICAL Ltd
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 GEN RADIOLOGICAL Ltd filed Critical GEN RADIOLOGICAL Ltd
Priority to GB18362/50A priority Critical patent/GB689799A/en
Priority to US237560A priority patent/US2659016A/en
Priority to NL162799A priority patent/NL88055C/en
Priority to DEG6613A priority patent/DE946250C/en
Publication of GB689799A publication Critical patent/GB689799A/en
Expired legal-status Critical Current

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
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

689,799. Automatic voltage control circuits for X-ray tube supplies. GENERAL RADIOLOGICAL, Ltd., and QUITTNER, V. July 18, 1951 [July 22, 1950], No. 18362/50. Class 38 (iv). The voltage across an X-ray tube 1 is maintained at a predetermined value by a switching valve 2 in series with the tube and biased by the rectified output of an H.F. oscillator unit 10 controlled by the difference in voltage between a potential divider 4, 5 and a reference potentiometer 8 adjustable to switch the tube on and off and to vary the setting at which the voltage is maintained. The control circuit is insulated from the switch valve by an H.F. transformer 12. As shown, one switching valve is used on each side of the X-ray tube, as described in Specification 689,798, with identical control circuits, a valve 114 being used to reverse the polarity sense of the control voltage in the second circuit, so that both switch valves act in the same sense. In an alternative arrangement the switch valve is normally biased to cut-off, and an auxiliary amplifying valve, also biased to cutoff in the absence of a control signal, allows a positive bias to oppose the switch valve bias as the control voltage is applied, Fig. 2 (not shown), to give a more sensitive control.
GB18362/50A 1950-07-22 1950-07-22 Operation of x-ray tubes Expired GB689799A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB18362/50A GB689799A (en) 1950-07-22 1950-07-22 Operation of x-ray tubes
US237560A US2659016A (en) 1950-07-22 1951-07-19 Operation of x-ray tubes
NL162799A NL88055C (en) 1950-07-22 1951-07-21 circuit for driving a X-ray tube
DEG6613A DE946250C (en) 1950-07-22 1951-07-24 Circuit arrangement for switching on on the low-voltage side and automatically keeping the voltage of a Roentgen tube constant by means of high frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18362/50A GB689799A (en) 1950-07-22 1950-07-22 Operation of x-ray tubes

Publications (1)

Publication Number Publication Date
GB689799A true GB689799A (en) 1953-04-08

Family

ID=10111170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18362/50A Expired GB689799A (en) 1950-07-22 1950-07-22 Operation of x-ray tubes

Country Status (4)

Country Link
US (1) US2659016A (en)
DE (1) DE946250C (en)
GB (1) GB689799A (en)
NL (1) NL88055C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333104A (en) * 1964-02-28 1967-07-25 Radiologie Cie Gle Plural x-ray tube power supply having pulse means for controlling the conduction of said tubes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038998A (en) * 1958-12-19 1962-06-12 Gen Electric Co Ltd Control means for x-ray apparatus
US3119931A (en) * 1960-06-28 1964-01-28 Philips Corp Circuit means for coupling an x-ray device to a control supply apparatus
DE1186955B (en) * 1961-04-28 1965-02-11 Gen Electric Co Ltd X-ray apparatus for the simultaneous operation of two X-ray tubes
DE1236669C2 (en) * 1965-09-21 1973-10-25 THREE-PHASE ROYAL DIAGNOSTIC APPARATUS
DE2304427A1 (en) * 1973-01-30 1974-08-08 Siemens Ag X-RAY DIAGNOSTIC DEVICE WITH MEANS TO CHANGE THE X-RAY PIPE VOLTAGE
FR2477331A1 (en) * 1980-02-29 1981-09-04 Radiologie Cie Gle SECURITY DEVICE FOR A VERY HIGH-VOLTAGE GENERATOR, IN PARTICULAR RADIOLOGICAL
EP0608015B1 (en) * 1993-01-20 1998-10-14 Koninklijke Philips Electronics N.V. X-ray apparatus
CA2424358A1 (en) 2000-10-19 2002-04-25 Mallinckrodt Inc. Ventilator with dual gas supply

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE588780C (en) * 1930-08-28 1933-11-27 C H F Mueller Akt Ges Control for high voltage circuits by means of a valve
US2036069A (en) * 1932-03-05 1936-03-31 Westinghouse Lamp Co Electric switch
DE608858C (en) * 1933-10-07 1935-02-14 Siemens Reiniger Werke Akt Ges Device for switching the current flowing in a high-voltage circuit on and off, especially for X-ray systems
AT156238B (en) * 1936-10-19 1939-05-25 Siemens Reiniger Werke Ag Device to prevent overloading of X-ray tubes.
US2240478A (en) * 1937-10-07 1941-05-06 Firm Siemens Reiniger Werke Ag X-ray apparatus
DE733891C (en) * 1938-01-27 1943-04-05 Mueller C H F Ag Circuit arrangement for keeping the terminal voltage of a Roentgen tube constant
BE523144A (en) * 1938-07-01
CH235657A (en) * 1941-03-25 1944-12-15 Siemens Reiniger Werke Ag Device for the production of X-rays.
DE742094C (en) * 1942-05-16 1943-11-22 Siemens Reiniger Werke Ag Circuit arrangement for controlling the tube voltage of an X-ray system with pulsating or wave-shaped voltage
US2488168A (en) * 1945-10-15 1949-11-15 Gen Electric X Ray Corp Protective equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333104A (en) * 1964-02-28 1967-07-25 Radiologie Cie Gle Plural x-ray tube power supply having pulse means for controlling the conduction of said tubes

Also Published As

Publication number Publication date
NL88055C (en) 1958-05-16
US2659016A (en) 1953-11-10
DE946250C (en) 1956-07-26

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