CA2992992A1 - Ion chamber for radiation measurement - Google Patents
Ion chamber for radiation measurement Download PDFInfo
- Publication number
- CA2992992A1 CA2992992A1 CA2992992A CA2992992A CA2992992A1 CA 2992992 A1 CA2992992 A1 CA 2992992A1 CA 2992992 A CA2992992 A CA 2992992A CA 2992992 A CA2992992 A CA 2992992A CA 2992992 A1 CA2992992 A1 CA 2992992A1
- Authority
- CA
- Canada
- Prior art keywords
- electrode
- ion chamber
- radiation beam
- collector
- current
- 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.)
- Abandoned
Links
- 230000005855 radiation Effects 0.000 title claims description 76
- 238000005259 measurement Methods 0.000 title description 11
- 238000000034 method Methods 0.000 claims description 17
- 230000004907 flux Effects 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 12
- 230000005684 electric field Effects 0.000 claims description 6
- 238000010606 normalization Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 66
- 238000010586 diagram Methods 0.000 description 16
- 238000002595 magnetic resonance imaging Methods 0.000 description 13
- 238000010894 electron beam technology Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000005865 ionizing radiation Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001959 radiotherapy Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005421 electrostatic potential Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- A61N5/1071—Monitoring, verifying, controlling systems and methods for verifying the dose delivered by the treatment plan
-
- 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
- G01T1/16—Measuring radiation intensity
- G01T1/185—Measuring radiation intensity with ionisation chamber arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- 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
- A61N5/103—Treatment planning systems
- A61N5/1039—Treatment planning systems using functional images, e.g. PET or MRI
-
- 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
- A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
- A61N5/1065—Beam adjustment
- A61N5/1067—Beam adjustment in real time, i.e. during treatment
-
- 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
- A61N5/1077—Beam delivery systems
-
- 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
-
- 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
- G01T1/2907—Angle determination; Directional detectors; Telescopes
-
- 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
- G01T1/2914—Measurement of spatial distribution of radiation
-
- 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
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
- A61N2005/1055—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using magnetic resonance imaging [MRI]
-
- 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
- A61N2005/1074—Details of the control system, e.g. user interfaces
-
- 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
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/1089—Electrons
-
- 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
- A61N2005/1092—Details
- A61N2005/1094—Shielding, protecting against radiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Radiation-Therapy Devices (AREA)
- Measurement Of Radiation (AREA)
- Electron Tubes For Measurement (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562195743P | 2015-07-22 | 2015-07-22 | |
| US62/195,743 | 2015-07-22 | ||
| PCT/US2016/043740 WO2017015629A1 (en) | 2015-07-22 | 2016-07-22 | Ion chamber for radiation measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2992992A1 true CA2992992A1 (en) | 2017-01-26 |
Family
ID=56684248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2992992A Abandoned CA2992992A1 (en) | 2015-07-22 | 2016-07-22 | Ion chamber for radiation measurement |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US10183181B2 (enExample) |
| EP (1) | EP3326007A1 (enExample) |
| JP (1) | JP7014707B2 (enExample) |
| KR (1) | KR20180033224A (enExample) |
| CN (2) | CN115373014A (enExample) |
| AU (1) | AU2016297254A1 (enExample) |
| CA (1) | CA2992992A1 (enExample) |
| HK (1) | HK1254762A1 (enExample) |
| WO (1) | WO2017015629A1 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1725166B1 (en) | 2004-02-20 | 2011-03-30 | University of Florida Research Foundation, Inc. | System for delivering conformal radiation therapy while simultaneously imaging soft tissue |
| WO2011008969A1 (en) * | 2009-07-15 | 2011-01-20 | Viewray Incorporated | Method and apparatus for shielding a linear accelerator and a magnetic resonance imaging device from each other |
| AU2013334064A1 (en) | 2012-10-26 | 2015-05-14 | Viewray Technologies, Inc. | Assessment and improvement of treatment using imaging of physiological responses to radiation therapy |
| US9446263B2 (en) | 2013-03-15 | 2016-09-20 | Viewray Technologies, Inc. | Systems and methods for linear accelerator radiotherapy with magnetic resonance imaging |
| WO2017015629A1 (en) * | 2015-07-22 | 2017-01-26 | Viewray Technologies, Inc. | Ion chamber for radiation measurement |
| EP3423153B1 (en) | 2016-03-02 | 2021-05-19 | ViewRay Technologies, Inc. | Particle therapy with magnetic resonance imaging |
| US11000706B2 (en) | 2016-12-13 | 2021-05-11 | Viewray Technologies, Inc. | Radiation therapy systems and methods |
| CN111712298B (zh) * | 2017-12-06 | 2023-04-04 | 优瑞技术公司 | 放射疗法系统 |
| GB2571124A (en) * | 2018-02-19 | 2019-08-21 | Elekta ltd | Method and apparatus for beam energy measurement |
| US11209509B2 (en) | 2018-05-16 | 2021-12-28 | Viewray Technologies, Inc. | Resistive electromagnet systems and methods |
| KR102068326B1 (ko) * | 2018-06-27 | 2020-01-20 | 한국원자력의학원 | 동물용 방사선 치료기 |
| CN111282161B (zh) * | 2020-02-28 | 2021-12-28 | 合肥中科离子医学技术装备有限公司 | 一种质子治疗装置束流诊断系统 |
| EP4172636B1 (en) | 2020-08-26 | 2024-12-25 | TAE Technologies, Inc. | Systems, devices, and methods for beam misalignment detection |
| CN113031048B (zh) * | 2021-03-05 | 2022-11-15 | 中国科学院近代物理研究所 | 一种离子束射程快速质控验证的装置及方法 |
| US11596806B2 (en) | 2021-03-31 | 2023-03-07 | Varian Medical Systems, Inc. | Dose rate monitor, system and method |
| US11534626B2 (en) * | 2021-03-31 | 2022-12-27 | Varian Medical Systems Particle Therapy Gmbh & Co. Kg | Asymmetric dual-mode ionization systems and methods |
| US11633628B2 (en) * | 2021-06-21 | 2023-04-25 | Varian Medical Systems, Inc. | Monitor for high dose rate electron therapy, system and method |
| WO2025184521A1 (en) * | 2024-02-29 | 2025-09-04 | James Price | X-ray flash radiotherapy devices and methods |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1383057A (fr) | 1963-11-09 | 1964-12-24 | Alsacienne Atom | Chambre d'ionisation utilisable avec une haute tension alternative |
| GB1408292A (en) * | 1972-05-12 | 1975-10-01 | Gec Medical Equipment Ltd | Ionisation chambers |
| FR2215701B1 (enExample) | 1973-01-26 | 1978-10-27 | Cgr Mev | |
| US3852610A (en) * | 1973-02-26 | 1974-12-03 | Varian Associates | Transmission ion chamber |
| US3879612A (en) * | 1973-08-24 | 1975-04-22 | Combustion Eng | Multi-sensor radiation detector system |
| 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 |
| AU499940B2 (en) * | 1976-04-12 | 1979-05-03 | General Electric Company | Xray detector |
| US4306155A (en) * | 1980-04-04 | 1981-12-15 | General Electric Company | Gas-filled x-ray detector with improved window |
| US4751391A (en) * | 1986-12-19 | 1988-06-14 | General Electric Company | High resolution X-ray collimator/detector system having reduced sensitivity to leakage radiation |
| JPH01134289A (ja) * | 1987-11-19 | 1989-05-26 | Aloka Co Ltd | 電離箱式線量率計 |
| JPH01285889A (ja) * | 1988-05-13 | 1989-11-16 | Mitsubishi Electric Corp | 放射線線量モニタ |
| JPH0619456B2 (ja) * | 1988-10-19 | 1994-03-16 | 工業技術院長 | 個人線量計用電離箱 |
| US5115134A (en) * | 1988-11-23 | 1992-05-19 | Slowey Thomas W | Precision low energy radiation dosimetry system |
| US5072123A (en) * | 1990-05-03 | 1991-12-10 | Varian Associates, Inc. | Method of measuring total ionization current in a segmented ionization chamber |
| JP2729228B2 (ja) * | 1990-09-26 | 1998-03-18 | 科学技術振興事業団 | 真空プロセス装置におけるｘ線検出器保護用フイルタ |
| CN1027021C (zh) * | 1993-03-18 | 1994-12-14 | 清华大学 | 气体电离型高能x.γ辐射成象阵列探测装置 |
| EP0696358A1 (en) * | 1993-04-28 | 1996-02-14 | University Of Surrey | Radiation detectors |
| US5401962A (en) * | 1993-06-14 | 1995-03-28 | Ferran Scientific | Residual gas sensor utilizing a miniature quadrupole array |
| WO1995018391A1 (en) * | 1993-12-31 | 1995-07-06 | Simo Rannikko | A method and an apparatus for determining the field size and the field form of the radiation cone of ionizing radiation source |
| CN2249449Y (zh) * | 1996-01-17 | 1997-03-12 | 中国科学院新疆物理研究所 | 窗口可调式双壁电离室 |
| JPH09292468A (ja) * | 1996-04-26 | 1997-11-11 | Toshiba Corp | 電離箱 |
| JPH10332835A (ja) * | 1997-05-28 | 1998-12-18 | Toshiba Corp | 電離箱形放射線検出器 |
| GB2382512A (en) | 2001-07-20 | 2003-05-28 | Elekta Oncology Syst Ltd | MRI in guided radiotherapy and position verification |
| AU2007272248B2 (en) * | 2006-07-10 | 2013-05-16 | University Health Network | Apparatus and methods for real-time verification of radiation therapy |
| CN201207085Y (zh) * | 2008-05-24 | 2009-03-11 | 中国科学院近代物理研究所 | 重离子束治癌当中剂量监测探测器标定和校准装置 |
| WO2014001926A1 (en) * | 2012-06-27 | 2014-01-03 | Koninklijke Philips N.V. | Digital positron emission tomography (dpet) energy calibration method |
| WO2017015629A1 (en) * | 2015-07-22 | 2017-01-26 | Viewray Technologies, Inc. | Ion chamber for radiation measurement |
| AT521173B1 (de) | 2018-06-27 | 2019-11-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Biegewerkzeug mit Distanzelement |
-
2016
- 2016-07-22 WO PCT/US2016/043740 patent/WO2017015629A1/en not_active Ceased
- 2016-07-22 US US15/217,887 patent/US10183181B2/en active Active
- 2016-07-22 CA CA2992992A patent/CA2992992A1/en not_active Abandoned
- 2016-07-22 EP EP16751068.4A patent/EP3326007A1/en active Pending
- 2016-07-22 CN CN202210997242.7A patent/CN115373014A/zh active Pending
- 2016-07-22 HK HK18113807.6A patent/HK1254762A1/zh unknown
- 2016-07-22 CN CN201680047622.7A patent/CN108027445B/zh active Active
- 2016-07-22 JP JP2018502740A patent/JP7014707B2/ja active Active
- 2016-07-22 AU AU2016297254A patent/AU2016297254A1/en not_active Abandoned
- 2016-07-22 KR KR1020187004554A patent/KR20180033224A/ko not_active Withdrawn
-
2019
- 2019-01-18 US US16/252,305 patent/US10821304B2/en active Active
-
2020
- 2020-10-30 US US17/085,938 patent/US11224764B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180033224A (ko) | 2018-04-02 |
| CN108027445B (zh) | 2022-09-02 |
| US20170021198A1 (en) | 2017-01-26 |
| AU2016297254A1 (en) | 2018-02-15 |
| JP7014707B2 (ja) | 2022-02-01 |
| US20190240511A1 (en) | 2019-08-08 |
| WO2017015629A1 (en) | 2017-01-26 |
| US11224764B2 (en) | 2022-01-18 |
| HK1254762A1 (zh) | 2019-07-26 |
| CN108027445A (zh) | 2018-05-11 |
| EP3326007A1 (en) | 2018-05-30 |
| CN115373014A (zh) | 2022-11-22 |
| US20210162238A1 (en) | 2021-06-03 |
| US10183181B2 (en) | 2019-01-22 |
| JP2018522381A (ja) | 2018-08-09 |
| US10821304B2 (en) | 2020-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20220301 |