JPH0763511B2 - Charged particle cancer treatment device - Google Patents
Charged particle cancer treatment deviceInfo
- Publication number
- JPH0763511B2 JPH0763511B2 JP62210915A JP21091587A JPH0763511B2 JP H0763511 B2 JPH0763511 B2 JP H0763511B2 JP 62210915 A JP62210915 A JP 62210915A JP 21091587 A JP21091587 A JP 21091587A JP H0763511 B2 JPH0763511 B2 JP H0763511B2
- Authority
- JP
- Japan
- Prior art keywords
- charged particle
- particle beam
- light
- beam region
- slit
- 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 - Lifetime
Links
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
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
- A61N2005/1056—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam by projecting a visible image of the treatment field
Landscapes
- Radiation-Therapy Devices (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、がん治療などに用いる荷電粒子線治療装置
に関するものである。Description: TECHNICAL FIELD The present invention relates to a charged particle beam therapy system used for cancer therapy and the like.
第２図は従来の荷電粒子線がん治療装置を示す構成図で
あり、（１）は荷電粒子線、（２）は散乱体、（３）は
ライトフィールドローカライザ、（3a）光源、（3b）反
射鏡、（４）は患部、（５）はコリメート用のスリット
である。FIG. 2 is a block diagram showing a conventional charged particle beam cancer treatment device, where (1) is a charged particle beam, (2) is a scatterer, (3) is a light field localizer, (3a) a light source, and (3b). ) A reflecting mirror, (4) is an affected area, and (5) is a collimating slit.
次に動作について説明する。加速器によって高エネルギ
ーに加速された荷電粒子線（１）は、散乱体（２）によ
り、拡げられ、大きな散乱角を得る。これにより患部の
広い部分に均一な照射が可能になる。また、スリット
（５）により、患部の形状に合わせた照射野にすること
ができる。この照射野の形状はライトフィールドローカ
ライザにより確認することができる。このライトフィー
ルドローカライザの光源と患者の照射面との距離は散乱
体と照射面の距離に等しいことが必要である。ライトフ
ィールドローカライザで照らす時には、ビームの中心軸
上に反射鏡を移動させて散乱体から光が発しているよう
な配置にしている。Next, the operation will be described. The charged particle beam (1) accelerated to high energy by the accelerator is spread by the scatterer (2) to obtain a large scattering angle. As a result, it is possible to uniformly irradiate a wide area of the affected area. Further, the slit (5) makes it possible to form an irradiation field that matches the shape of the affected area. The shape of this irradiation field can be confirmed by a light field localizer. The distance between the light source of this light field localizer and the irradiation surface of the patient needs to be equal to the distance between the scatterer and the irradiation surface. When illuminating with the light field localizer, the reflector is moved to the central axis of the beam so that the light is emitted from the scatterer.
このようにして、患部の形に合わせた正確な照射治療が
可能になる。この患部の形はあらかじめＸ線写真,X線CT
装置などにより得ることができる。In this way, it is possible to perform accurate irradiation treatment according to the shape of the affected area. The shape of this affected area is X-ray photograph and X-ray CT in advance.
It can be obtained by a device or the like.
従来の荷電粒子線がん治療装置は以上のように構成され
ているので、荷電粒子線が、患者に照射される部分をあ
らかじめ示すライトフィールドローカライザの光源の位
置は、患者から散乱体までの距離に等しくなければなら
ないため、散乱体と患部との間に種々の機器が配置され
るときに、照射形状を確認することが困難になる場合が
あった。Since the conventional charged particle beam cancer treatment device is configured as described above, the position of the light source of the light field localizer, which indicates in advance the portion where the charged particle beam is irradiated on the patient, is the distance from the patient to the scatterer. Therefore, it is sometimes difficult to confirm the irradiation shape when various devices are arranged between the scatterer and the affected area.
この発明は上記のような問題点を解消するためになされ
たものでライトフィールドローカライザの光源の位置を
患者の近くに置ける荷電粒子線がん治療装置を得ること
を目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to obtain a charged particle beam cancer treatment apparatus in which the position of a light source of a light field localizer can be placed near a patient.
この発明に係る荷電粒子線がん治療装置は、ライトフィ
ールドローカライザの光源と患者の間にレンズ系を配置
したものである。The charged particle beam cancer treatment apparatus according to the present invention has a lens system arranged between a light source of a light field localizer and a patient.
この発明における荷電粒子線がん治療装置は、レンズ系
により光源の位置と患者の距離を短くする。In the charged particle beam cancer treatment device according to the present invention, the distance between the position of the light source and the patient is shortened by the lens system.
以下、この発明の一実施例を図について説明する。第１
図において、（１）〜（５）は従来例と同じであり、
（６）は走査電磁石、（７）はレンジ・シフタ、（８）
はビームモニタである。An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, (1) to (5) are the same as the conventional example,
(6) is a scanning electromagnet, (7) is a range shifter, (8)
Is a beam monitor.
本実施例の場合、荷電粒子ビーム（１）は走査電磁石
（６）により、患者上において照射線量分布が均一にな
る。X,Y方向の走査電磁石（６）により、荷電粒子ビー
ムを回転させることにより、線量分布を平坦化する。ま
た、レンジ・シフタ（７）により、荷電粒子線（１）の
エネルギーが減衰されて、エネルギーが低くなる。これ
により、患部の深さに応じて、照射する深さを調節する
ことができる。ビームの平坦度や線量率などは、ビーム
モニタ（８）により、測定できる。このように、走査電
磁石（６）と患者の間に様々な機器が配置されると、照
射形状を確認する為のライトローカライザの位置は、患
者に近い位置が適当になる。この為、光源と患者面の距
離は実際のビームの拡大位置（この場合は走査電磁石の
位置）より、短いことが要求される。このため、第１図
に示すように、光源（3a）と患者の間にレンズ系（3c）
を設置することにより、走査電磁石の位置から光が発せ
られるのと同じになる。反射鏡は、照射形状の確認時、
ビーム軸に移動して、その他の時は照射領域から退避す
る。In the case of the present embodiment, the charged particle beam (1) has a uniform irradiation dose distribution on the patient due to the scanning electromagnet (6). The dose distribution is flattened by rotating the charged particle beam by the scanning electromagnets (6) in the X and Y directions. Further, the energy of the charged particle beam (1) is attenuated by the range shifter (7) and the energy becomes low. Thereby, the irradiation depth can be adjusted according to the depth of the affected area. The flatness and dose rate of the beam can be measured by the beam monitor (8). In this way, when various devices are arranged between the scanning electromagnet (6) and the patient, the position of the light localizer for confirming the irradiation shape is appropriate near the patient. Therefore, the distance between the light source and the patient surface is required to be shorter than the actual beam expansion position (in this case, the position of the scanning electromagnet). Therefore, as shown in FIG. 1, a lens system (3c) is provided between the light source (3a) and the patient.
By installing, the light is emitted from the position of the scanning electromagnet. The reflector is used when confirming the irradiation shape.
It moves to the beam axis and at other times retracts from the irradiation area.
以上のように、この発明によればライトフィールドロー
カライザの光源と患者間にレンズ系を構成したので、光
源の位置をより患者側に設定できる効果がある。As described above, according to the present invention, since the lens system is formed between the light source of the light field localizer and the patient, the position of the light source can be set closer to the patient side.
第１図はこの発明の一実施例による荷電粒子線願治療装
置を示す構成図、第２図は従来の荷電粒子線がん治療装
置を示す構成図である。（１）は荷電粒子線、（２）は
散乱体、（３）はライトフィールドローカライザ、
（４）は患者、（５）はビームスリット、（６）は走査
電磁石、（７）はレンジシフタである。FIG. 1 is a configuration diagram showing a charged particle beam application treatment apparatus according to an embodiment of the present invention, and FIG. 2 is a configuration diagram showing a conventional charged particle beam cancer treatment apparatus. (1) is a charged particle beam, (2) is a scatterer, (3) is a light field localizer,
(4) is a patient, (5) is a beam slit, (6) is a scanning electromagnet, and (7) is a range shifter.
Claims (1)
と、この走査電磁石からの荷電粒子線が照射され、所望
の散乱角を有する荷電粒子線領域を形成する散乱体と、
上記荷電粒子線領域を通過させ、上記荷電粒子線領域の
照射部に対する近傍に設けられ、上記照射部の形状に合
わせるコリメート用スリットと、このコリメート用スリ
ットと上記走査電磁石との間における上記コリメート用
スリットに近い側に設けられ、上記荷電粒子線領域の平
坦度を測定するビームモニタと、上記荷電粒子線領域外
に設けられた光源と、この光源からの光を導光する導光
手段と、この導光手段からの光を反射して上記照射部の
形状を確認するときは、上記コリメート用スリットと上
記ビームモニタとの間に、上記荷電粒子線領域の軸方向
に移動可能に配置され、上記荷電粒子線領域を上記照射
部に照射するときは、上記荷電粒子線領域から退避させ
られる反射鏡とを備えたことを特徴とする荷電粒子線が
ん治療装置。1. A scanning electromagnet that scans a charged particle beam in a circle, and a scatterer that is irradiated with the charged particle beam from the scanning electromagnet to form a charged particle beam region having a desired scattering angle.
A collimating slit that passes through the charged particle beam region and is provided in the vicinity of the charged particle beam region with respect to the irradiation unit, and a collimator slit that matches the shape of the irradiation unit, and the collimator between the collimator slit and the scanning electromagnet. A beam monitor provided on the side close to the slit for measuring the flatness of the charged particle beam region, a light source provided outside the charged particle beam region, and a light guide means for guiding light from the light source, When confirming the shape of the irradiation part by reflecting the light from the light guiding means, it is movably arranged in the axial direction of the charged particle beam region between the collimating slit and the beam monitor. A charged particle beam cancer treatment device, comprising: a reflecting mirror that is retracted from the charged particle beam region when the charged particle beam region is irradiated to the irradiation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62210915A JPH0763511B2 (en) | 1987-08-24 | 1987-08-24 | Charged particle cancer treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62210915A JPH0763511B2 (en) | 1987-08-24 | 1987-08-24 | Charged particle cancer treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452484A JPS6452484A (en) | 1989-02-28 |
| JPH0763511B2 true JPH0763511B2 (en) | 1995-07-12 |
Family
ID=16597170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62210915A Expired - Lifetime JPH0763511B2 (en) | 1987-08-24 | 1987-08-24 | Charged particle cancer treatment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0763511B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5551107B2 (en) * | 2011-05-02 | 2014-07-16 | 住友重機械工業株式会社 | Charged particle beam irradiation equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616936Y2 (en) * | 1978-09-28 | 1986-03-03 |
-
1987
- 1987-08-24 JP JP62210915A patent/JPH0763511B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6452484A (en) | 1989-02-28 |
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