ES8200538A1 - APPARATUS TO ACHIEVE STABILIZED X-RAY EMISSIONS QUICKLY - Google Patents

APPARATUS TO ACHIEVE STABILIZED X-RAY EMISSIONS QUICKLY

Info

Publication number
ES8200538A1
ES8200538A1 ES495031A ES495031A ES8200538A1 ES 8200538 A1 ES8200538 A1 ES 8200538A1 ES 495031 A ES495031 A ES 495031A ES 495031 A ES495031 A ES 495031A ES 8200538 A1 ES8200538 A1 ES 8200538A1
Authority
ES
Spain
Prior art keywords
voltage
value
ray emissions
achieve
achieve stabilized
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
ES495031A
Other languages
Spanish (es)
Other versions
ES495031A0 (en
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
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 Pfizer Inc filed Critical Pfizer Inc
Publication of ES495031A0 publication Critical patent/ES495031A0/en
Publication of ES8200538A1 publication Critical patent/ES8200538A1/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
    • H05G1/34—Anode current, heater current or heater voltage of X-ray 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
    • H05G1/56—Switching-on; Switching-off

Landscapes

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

Abstract

DISPOSITIVO DE CONTROL DE TENSION Y DE CORRIENTE QUE SE APLICA A UN TUBO DE RAYOS X, PARA CONSEGUIR EN POCO ESPACIO DE TIEMPO UNA EMISION ESTABILIZADA DE DICHA RADIACION. EL DISPOSITIVO ESTA CONSTITUIDO POR CONMUTADORES, COMPARADORES Y AMPLIFICADORES ELECTRONICOS INTEGRADOS. LA SEÑAL APLICADA AL CONMUTADOR HACE QUUE SE ESTABLEZCA UNA TENSION DE 30KV, QUE ES INFERIOR A LA DE FUNCIONAMIENTO FINAL DE VALOR 140KV. ESTO IMPLICA QUE DURANTE EL TIEMPO DE PREPARACION DEL TUBO, UNO A DOS SEGUNDOS, SE EMITEN RAYOS X DE ENERGIA REDUCIDA. EL SALTO DE UNA TENSION A OTRA SE REALIZA RAPIDAMENTE, MANTENIENDOSE LA CORRIENTE PRACTICAMENTE CONSTANTE, EN EL VALOR DE 100MA. EL DISPOSITIVO ADMITE VARIANTES DE REALIZACION. DE APLICACION EN MEDICINA.VOLTAGE AND CURRENT CONTROL DEVICE APPLIED TO AN X-RAY TUBE, TO ACHIEVE A STABILIZED EMISSION OF SAID RADIATION IN A LITTLE SPACE OF TIME. THE DEVICE IS MADE UP OF INTEGRATED ELECTRONIC SWITCHES, COMPARISORS AND AMPLIFIERS. THE SIGNAL APPLIED TO THE SWITCH MAKES A VOLTAGE OF 30KV BE ESTABLISHED, WHICH IS LOWER THAN THE FINAL OPERATION OF 140KV VALUE. THIS MEANS THAT DURING THE TUBE PREPARATION TIME, ONE TO TWO SECONDS, REDUCED ENERGY X-RAYS ARE EMITTED. THE JUMP FROM ONE VOLTAGE TO ANOTHER IS DONE QUICKLY, KEEPING THE CURRENT PRACTICALLY CONSTANT, IN THE VALUE OF 100MA. THE DEVICE SUPPORTS VARIANTS OF REALIZATION. OF APPLICATION IN MEDICINE.

ES495031A 1979-09-13 1980-09-12 APPARATUS TO ACHIEVE STABILIZED X-RAY EMISSIONS QUICKLY Expired ES8200538A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7518779A 1979-09-13 1979-09-13

Publications (2)

Publication Number Publication Date
ES495031A0 ES495031A0 (en) 1981-11-01
ES8200538A1 true ES8200538A1 (en) 1981-11-01

Family

ID=22124124

Family Applications (1)

Application Number Title Priority Date Filing Date
ES495031A Expired ES8200538A1 (en) 1979-09-13 1980-09-12 APPARATUS TO ACHIEVE STABILIZED X-RAY EMISSIONS QUICKLY

Country Status (6)

Country Link
EP (1) EP0025688A3 (en)
JP (1) JPS5650100A (en)
BR (1) BR8005771A (en)
DK (1) DK389280A (en)
ES (1) ES8200538A1 (en)
GR (1) GR70282B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122185A1 (en) * 1981-06-04 1982-12-30 Philips Patentverwaltung Gmbh, 2000 Hamburg METHOD FOR OPERATING AN X-RAY GENERATOR AND X-RAY GENERATOR FOR CARRYING OUT THIS METHOD
US5077772A (en) * 1990-07-05 1991-12-31 Picker International, Inc. Rapid warm-up x-ray tube filament power supply
DE4416556A1 (en) * 1994-05-11 1995-11-16 Philips Patentverwaltung X-ray generator
CN105125235B (en) 2015-09-30 2018-09-18 沈阳东软医疗系统有限公司 A kind of warm up method and apparatus
GB201904168D0 (en) * 2019-03-26 2019-05-08 Nikon Metrology Nv Method of setting a filament demand in an x-ray apparatus, controller, x-ray apparatus, control program and storage medium

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062831B (en) * 1958-06-13 1959-08-06 Siemens Reiniger Werke Ag Diagnostic X-ray apparatus with means for regulating the X-ray tube emission current before the start of recording
DE1639397A1 (en) * 1968-01-30 1971-02-04 Siemens Ag X-ray diagnostic apparatus with control means to keep the X-ray tube flow constant
US3636355A (en) * 1969-09-24 1972-01-18 Cgr Medical Corp Starting voltage suppressor circuitry for an x-ray generator
US4072865A (en) * 1976-06-24 1978-02-07 American Radiologic Systems, Inc. Automatic control system
JPS5385188A (en) * 1977-01-05 1978-07-27 Toshiba Corp Pulse x-ray apparatus
DE2719373C2 (en) * 1977-04-30 1982-10-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement of an X-ray generator with an electronic switch controlled by a timing control element in the primary circuit of a high-voltage transformer
CA1120600A (en) * 1977-09-23 1982-03-23 Heikki K.J. Kanerva Procedure for regulating and stabilizing the intensity level of the radiation of an x-ray source and an x-ray source where this procedure is used

Also Published As

Publication number Publication date
GR70282B (en) 1982-09-03
JPS5650100A (en) 1981-05-07
EP0025688A3 (en) 1981-05-27
ES495031A0 (en) 1981-11-01
EP0025688A2 (en) 1981-03-25
DK389280A (en) 1981-03-14
BR8005771A (en) 1981-03-24

Similar Documents

Publication Publication Date Title
RU2137292C1 (en) High-voltage pulse generating circuit
DK0500920T3 (en) Cold cathode field radiation device with a power source means
US6329763B1 (en) Pulsed high voltage radiography system power supply having a one-to-one correspondence between low voltage input pulses and high voltage output pulses
EP0298497A3 (en) Flash device
KR830008633A (en) X-ray device
ES466337A1 (en) Circuit for adjusting tube anode current in an X-ray generator
US3508059A (en) Portable x-ray apparatus
JPS5279757A (en) Power supply for field emission electron gun
ES484434A1 (en) IMPROVEMENTS IN SYSTEMS TO REDUCE THE ARCO JUMP IN CATHODIC RAY TUBES
IT1269469B (en) DEVICE FOR RADIOGRAPHY WITHOUT FILM
ES8204560A1 (en) PROCEDURE AND APPARATUS TO REDUCE THE DEAD TIME OF A GEIGER-MULLER TUBE
US3244167A (en) Endoscope with intermittent illumination and means to vary the intensity and rate of illumination for visual or photographic observation
US4731803A (en) Circuit for operating an X-ray tube
FI861758A0 (en) STYRSYSTEM FOER FOKUSERING AV ETT KATODSTRAOLROER.
JPS55117898A (en) X-ray generator
JPS5779978A (en) Fixing device of flash
US8184669B2 (en) System and method to regulate high current radiation sources
SU748577A1 (en) X-ray pulse tube
US2505944A (en) Ultraviolet electrotherapeutic device
EP0025688A3 (en) Process for rapidly achieving stabilized X-ray emission from an X-ray tube
JPS55115385A (en) Laser device
JPS6486938A (en) Ct scanner
JPS5259594A (en) X-ray unit
SU535514A1 (en) Digital display device
JPS567398A (en) X-ray apparatus