CA994927A - Transmission ion chamber - Google Patents

Transmission ion chamber

Info

Publication number
CA994927A
CA994927A CA193,360A CA193360A CA994927A CA 994927 A CA994927 A CA 994927A CA 193360 A CA193360 A CA 193360A CA 994927 A CA994927 A CA 994927A
Authority
CA
Canada
Prior art keywords
ion chamber
transmission ion
transmission
chamber
ion
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
CA193,360A
Other languages
English (en)
Inventor
Raymond D. Mcintyre
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates 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 Varian Associates Inc filed Critical Varian Associates Inc
Priority to CA245,235A priority Critical patent/CA1002669A/en
Application granted granted Critical
Publication of CA994927A publication Critical patent/CA994927A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/02—Ionisation chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of Radiation (AREA)
  • Electron Tubes For Measurement (AREA)
CA193,360A 1973-02-26 1974-02-25 Transmission ion chamber Expired CA994927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA245,235A CA1002669A (en) 1973-02-26 1976-02-09 Transmission ion chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00335633A US3852610A (en) 1973-02-26 1973-02-26 Transmission ion chamber

Publications (1)

Publication Number Publication Date
CA994927A true CA994927A (en) 1976-08-10

Family

ID=23312610

Family Applications (1)

Application Number Title Priority Date Filing Date
CA193,360A Expired CA994927A (en) 1973-02-26 1974-02-25 Transmission ion chamber

Country Status (5)

Country Link
US (1) US3852610A (cg-RX-API-DMAC7.html)
JP (1) JPS5053083A (cg-RX-API-DMAC7.html)
CA (1) CA994927A (cg-RX-API-DMAC7.html)
FR (1) FR2219523B3 (cg-RX-API-DMAC7.html)
GB (1) GB1445519A (cg-RX-API-DMAC7.html)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2275022A2 (fr) * 1974-06-14 1976-01-09 Cgr Mev Dispositif pour le controle de la position, de l'intensite, de l'homogeneite et de la directivite d'un faisceau de rayonnement ionisant
US3955089A (en) * 1974-10-21 1976-05-04 Varian Associates Automatic steering of a high velocity beam of charged particles
DE2505173A1 (de) * 1975-02-07 1976-08-19 Philips Patentverwaltung Roentgenaufnahmeanordnung mit einer gasgefuellten kammer
US4131799A (en) * 1977-04-01 1978-12-26 Applied Radiation Corporation Ionization chamber
US4320299A (en) 1977-06-24 1982-03-16 National Research Development Corporation Position-sensitive neutral particle sensor
SE421257B (sv) * 1980-04-23 1981-12-07 Scanditronix Instr Sett att med transmissionsjonkammare centrera ett stralknippe och bringa stralknippet att bli symmetriskt med avseende pa centrumlinjen av en kollimator, samt transmissionsjonkammare for utforande av settet
JPS5710477A (en) * 1980-06-23 1982-01-20 Fukuoka Hoshasen Kk Dosimeter for patient exposed to clinical x-rays
US4427890A (en) 1981-08-03 1984-01-24 Siemens Medical Laboratories, Inc. Dose monitor chamber for electron or X-ray radiation
US4514633A (en) * 1983-11-17 1985-04-30 Siemens Medical Laboratories, Inc. Ionization chamber for measuring the profile of a radiation field of electron or X-ray radiation
NL8503152A (nl) * 1985-11-15 1987-06-01 Optische Ind De Oude Delft Nv Dosismeter voor ioniserende straling.
DE3844716C2 (de) * 1987-08-24 2001-02-22 Mitsubishi Electric Corp Partikelstrahlmonitorvorrichtung
US5072123A (en) * 1990-05-03 1991-12-10 Varian Associates, Inc. Method of measuring total ionization current in a segmented ionization chamber
JP2728986B2 (ja) * 1991-06-05 1998-03-18 三菱電機株式会社 放射線モニタ
JP2755527B2 (ja) 1992-07-01 1998-05-20 三菱電機株式会社 線量モニタ
US5672878A (en) * 1996-10-24 1997-09-30 Siemens Medical Systems Inc. Ionization chamber having off-passageway measuring electrodes
DE19907207A1 (de) * 1999-02-19 2000-08-31 Schwerionenforsch Gmbh Ionisationskammer für Ionenstrahlen und Verfahren zur Intensitätsüberwachung eines Ionenstrahls
CN1894577B (zh) 2003-08-12 2012-12-12 洛马林达大学医学中心 用于放射治疗系统的患者定位系统
AU2004266644B2 (en) 2003-08-12 2009-07-16 Vision Rt Limited Patient positioning system for radiation therapy system
US20090080602A1 (en) 2006-08-03 2009-03-26 Kenneth Brooks Dedicated breast radiation imaging/therapy system
CN101641748B (zh) 2006-11-21 2013-06-05 洛马林达大学医学中心 用于固定乳腺放疗患者的装置和方法
JP2010054309A (ja) * 2008-08-27 2010-03-11 Mitsubishi Heavy Ind Ltd 透過型線量計を用いた放射線治療装置
US9693443B2 (en) 2010-04-19 2017-06-27 General Electric Company Self-shielding target for isotope production systems
US8644571B1 (en) 2011-12-06 2014-02-04 Loma Linda University Medical Center Intensity-modulated proton therapy
WO2016191883A1 (en) 2015-06-05 2016-12-08 University Health Network Sensors with virtual spatial sensitivity for monitoring a radiation generating device
AU2016297254A1 (en) * 2015-07-22 2018-02-15 Viewray Technologies, Inc. Ion chamber for radiation measurement
US9884206B2 (en) 2015-07-23 2018-02-06 Loma Linda University Medical Center Systems and methods for intensity modulated radiation therapy
EP3423154B1 (en) 2016-03-01 2021-05-05 Intraop Medical Corporation Low energy electron beam radiation system that generates electron beams with precisely controlled and adjustable penetration depth useful for therapeutic applications
CN114845773B (zh) 2019-09-14 2025-05-09 因特奥普医药公司 用于在短时间间隔内使用和控制较高剂量率电离辐射的方法和系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1369414A (fr) * 1963-06-11 1964-08-14 Commissariat Energie Atomique Procédé et dispositif de déclenchement d'un détecteur à gaz permettant la localisation de particules nucléaires

Also Published As

Publication number Publication date
FR2219523B3 (cg-RX-API-DMAC7.html) 1976-04-09
GB1445519A (en) 1976-08-11
JPS5053083A (cg-RX-API-DMAC7.html) 1975-05-10
FR2219523A1 (cg-RX-API-DMAC7.html) 1974-09-20
US3852610A (en) 1974-12-03

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