ES8200538A1 - Aparato para conseguir rapidamente emisiones estabilizadas de rayos x - Google Patents

Aparato para conseguir rapidamente emisiones estabilizadas de rayos x

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
English (en)
Other versions
ES495031A0 (es
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/es
Publication of ES8200538A1 publication Critical patent/ES8200538A1/es
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.
ES495031A 1979-09-13 1980-09-12 Aparato para conseguir rapidamente emisiones estabilizadas de rayos x Expired ES8200538A1 (es)

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 (es) 1981-11-01
ES8200538A1 true ES8200538A1 (es) 1981-11-01

Family

ID=22124124

Family Applications (1)

Application Number Title Priority Date Filing Date
ES495031A Expired ES8200538A1 (es) 1979-09-13 1980-09-12 Aparato para conseguir rapidamente emisiones estabilizadas de rayos x

Country Status (6)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122185A1 (de) * 1981-06-04 1982-12-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zum betrieb eines roentgengenerators und roentgengenerator zur durchfuehrung dieses verfahrens
US5077772A (en) * 1990-07-05 1991-12-31 Picker International, Inc. Rapid warm-up x-ray tube filament power supply
DE4416556A1 (de) * 1994-05-11 1995-11-16 Philips Patentverwaltung Röntgengenerator
CN105125235B (zh) 2015-09-30 2018-09-18 沈阳东软医疗系统有限公司 一种球管预热方法和装置
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 (de) * 1958-06-13 1959-08-06 Siemens Reiniger Werke Ag Diagnostik-Roentgenapparat mit Mitteln zur Regelung des Roentgenroehren-emissionsstromes vor Aufnahmebeginn
DE1639397A1 (de) * 1968-01-30 1971-02-04 Siemens Ag Roentgendiagnostikapparat mit Regelmitteln zum Konstanthalten des Roentgenroehrenstroms
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 (de) * 1977-04-30 1982-10-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung eines Röntgengenerators mit einem durch ein Zeitsteuerglied gesteuerten elektronischen Schalter im Primärkreis eines Hochspannungs-Transformators
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
JPS5650100A (en) 1981-05-07
EP0025688A2 (en) 1981-03-25
GR70282B (es) 1982-09-03
ES495031A0 (es) 1981-11-01
DK389280A (da) 1981-03-14
EP0025688A3 (en) 1981-05-27
BR8005771A (pt) 1981-03-24

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