JP6569000B2 - 線量率測定装置及び放射線治療装置 - Google Patents
線量率測定装置及び放射線治療装置 Download PDFInfo
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- JP6569000B2 JP6569000B2 JP2018505121A JP2018505121A JP6569000B2 JP 6569000 B2 JP6569000 B2 JP 6569000B2 JP 2018505121 A JP2018505121 A JP 2018505121A JP 2018505121 A JP2018505121 A JP 2018505121A JP 6569000 B2 JP6569000 B2 JP 6569000B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/023—Scintillation dose-rate meters
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- 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
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/026—Semiconductor dose-rate meters
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- 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
- G01T1/20—Measuring radiation intensity with scintillation detectors
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- 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
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- 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
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/36—Measuring spectral distribution of X-rays or of nuclear radiation spectrometry
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Pathology (AREA)
- Measurement Of Radiation (AREA)
- Radiation-Therapy Devices (AREA)
Description
<線量率測定装置>
図1は本実施形態に係る線量率測定装置1の構成図である。
1A 線量率測定装置
10 放射線センサ
10A 放射線センサ
10B 放射線センサ
10C 放射線センサ
20 光ファイバ
30 光電変換器
40 演算装置
50 表示装置
60 光ファイバ切替器
100 放射線治療装置
101 発光部
101A発光部
101B発光部
101C発光部
102 カバー
102Aカバー
102Bカバー
102Cカバー
Claims (8)
- 入射した放射線量に依存した強度の光を発生する多結晶放射線発光素材製の発光部と前記発光部を覆うカバーとを含む放射線センサと、
前記放射線センサと接続し前記多結晶放射線発光素材が発したフォトンを伝送する光ファイバと、
前記光ファイバが伝送した1個のフォトンを1個の電気パルス信号に変換する光電変換器と、
前記電気パルス信号1個1個を計測し計数率を算出して線量率を特定する演算装置と、
前記演算装置で算出した測定結果を表示する表示装置とを有し、
前記多結晶放射線発光素材は、ネオジムを含有することを特徴とする線量率測定装置。 - 入射した放射線量に依存した強度の光を発生する放射線発光素材と前記放射線発光素材が発した光を伝える光透過性素材とを混合した発光部と前記発光部を覆うカバーとからなる放射線センサと、
前記放射線センサと接続し前記放射線発光素材が発したフォトンを伝送する光ファイバと、
前記光ファイバが伝送した1個のフォトンを1個の電気パルス信号に変換する光電変換器と、
前記電気パルス信号を1個1個を計測し計数率を算出して線量率を特定する演算装置と、
前記演算装置で算出した測定結果を表示する表示装置とを有し、
前記多結晶放射線発光素材は、ネオジムを含有することを特徴とする線量率測定装置。 - 請求項2記載の線量率測定装置において、
前記発光部は、前記放射線発光素材と、前記放射線発光素材が発した光を伝え、弾性を有する光透過性素材と、を混合した発光素子を有し、
前記カバーは、弾性を有することを特徴とする線量率測定装置。 - 請求項2又は3記載の線量率測定装置において、
前記放射線センサは水等価であることを特徴とする線量率測定装置。 - 請求項1から4のいずれかに記載の線量率測定装置において、
水等価な前記放射線センサと前記放射線センサと接続している前記光ファイバとの組を複数個有し、
線量率分布を測定することを特徴とする線量率測定装置。 - 請求項2に記載の線量率測定装置において、
前記発光部は、少なくとも1種の希土類元素を含有する前記放射線発光素材と、前記放射線発光素材が発した光を伝える光透過性素材と、を混合した発光素子を有することを特徴とする線量率測定装置。 - 請求項1から6のいずれかに記載の線量率測定装置において、
前記多結晶放射線発光素材は、イットリウム・アルミ・ガーネットを含む母材と、ネオジムとにより構成されることを特徴とする線量率測定装置。 - 請求項1から7のいずれかに記載の線量率測定装置を有し、
前記線量率測定装置で算出した線量率に基づき放射線照射部及びベッドを制御する制御装置とを有することを特徴とする放射線治療装置。
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PCT/JP2016/058229 WO2017158743A1 (ja) | 2016-03-16 | 2016-03-16 | 線量率測定装置及び放射線治療装置 |
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JPWO2017158743A1 JPWO2017158743A1 (ja) | 2018-08-30 |
JP6569000B2 true JP6569000B2 (ja) | 2019-08-28 |
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US (1) | US10605928B2 (ja) |
EP (1) | EP3432034B1 (ja) |
JP (1) | JP6569000B2 (ja) |
CN (1) | CN108431635B (ja) |
WO (1) | WO2017158743A1 (ja) |
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JP6817162B2 (ja) * | 2017-07-07 | 2021-01-20 | 株式会社日立製作所 | 放射線モニタ装置および放射線治療装置、ならびに放射線のモニタ方法 |
KR102066899B1 (ko) * | 2018-06-08 | 2020-01-16 | 고려대학교산학협력단 | 광센서 기반 실시간 치료용 광자선 빔 모니터링 장치 |
JP7160572B2 (ja) * | 2018-06-15 | 2022-10-25 | 株式会社日立製作所 | 放射線モニタ |
CN110988968B (zh) * | 2019-12-12 | 2022-09-30 | 成都理工大学 | 一种多通道x射线光机能谱测量系统及测量方法 |
CN113877074A (zh) * | 2020-07-03 | 2022-01-04 | 中硼(厦门)医疗器械有限公司 | 中子捕获治疗设备 |
WO2023164585A1 (en) * | 2022-02-25 | 2023-08-31 | Gt Medical Technologies, Inc. | Intra-operative radiation dose feedback system |
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EP3432034B1 (en) | 2024-05-08 |
EP3432034A1 (en) | 2019-01-23 |
US10605928B2 (en) | 2020-03-31 |
EP3432034A4 (en) | 2019-11-13 |
CN108431635B (zh) | 2022-05-17 |
WO2017158743A1 (ja) | 2017-09-21 |
JPWO2017158743A1 (ja) | 2018-08-30 |
CN108431635A (zh) | 2018-08-21 |
US20190018148A1 (en) | 2019-01-17 |
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