CN105277966A - Beam deflection tracking detection and correction device - Google Patents
Beam deflection tracking detection and correction device Download PDFInfo
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- CN105277966A CN105277966A CN201510768013.8A CN201510768013A CN105277966A CN 105277966 A CN105277966 A CN 105277966A CN 201510768013 A CN201510768013 A CN 201510768013A CN 105277966 A CN105277966 A CN 105277966A
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Abstract
The invention provides a beam deflection tracking detection and correction device comprising a fixed deflection vacuum box, two deflection magnets, two deflection coils, a flexible connection corrugated pipe, a groove type swing frame, a deflection transporting pipe, a beam correction device and a beam position detection device. The groove type swing frame and a deflection magnet installing frame are connected via a bearing and can perform certain angular swinging. The fixed deflection vacuum box is arranged between the two deflection magnets. The deflection magnets are externally sleeved by one deflection coil respectively. The two ends of the flexible connection corrugated pipe are respectively connected with the fixed deflection vacuum box and the groove type swing frame. The deflection transporting pipe and the groove type swing frame are fixed as a whole by screws. The beam correction and detection devices are respectively installed at the periphery of the deflection transporting pipe and distributed along the axial direction of the deflection transporting pipe in a spacing way. Random and dynamic deflection of beams is enabled to be possible. Meanwhile, beam correction coils and the beam position detection device are installed at the position of the deflection transporting pipe so that the beams are enabled to be outputted according to the required angles of a doctor.
Description
Technical field
The present invention relates to physical field, particularly relate to radiotherapy equipment, particularly can follow the tracks of the electron beam of vacuum box deflection, particularly a kind of line follows the tracks of deflection detection and means for correcting.
Background technology
In prior art, radiotherapy equipment all adopts fixing transit, and adopts the vacuum box structure that can meet this angle and turn according to line fixed deflection angle, namely deflects the vacuum box what angle just makes corresponding bending angle.But very one of important way that along with the variation of the gentle line operational mode of Automated water, line arbitrarily deflects, dynamically deflection becomes beam transport.Originally fixed mode vacuum box and transit just become the obstacle that line arbitrarily runs, be be in ultra-high vacuum environment because line runs, how make vacuum box can meet line and change arbitrarily deflection angle and ensure that again ultra-high vacuum state is the problem that must solve.
Summary of the invention:
The object of the present invention is to provide a kind of line to deflect as required and line is followed the tracks of deflection and detected and means for correcting, described this line is followed the tracks of deflection as required and to be detected and line means for correcting will solve fixed mode vacuum box in prior art and can not meet line and change the technical matters that deflection angle requires as required.
This line of the present invention is followed the tracks of deflection as required and is detected and means for correcting, comprise a fixed deflection vacuum box, two deflection magnets, two deflection coils, one flexibly connects corrugated tube, a grooved swing frame, a deflection transports pipe, a line means for correcting and a beam position pick-up unit, described fixed deflection vacuum box includes an arc opening, wherein, described grooved swing frame is connected by bearing with deflection magnet erecting frame, grooved swing frame and deflection magnet erecting frame are set to revolute pair, described fixed deflection vacuum box is placed between two deflection magnets, two described deflection coils are set in outside deflection magnet respectively, the bottom of the arc opening of fixed deflection vacuum box is connected with the described osculum end flexibly connecting corrugated tube, the big opening end flexibly connecting corrugated tube is connected with grooved swing frame, described deflection transports pipe and is screwed is integrated with grooved swing frame, described line means for correcting and beam position pick-up unit are separately positioned on the periphery that deflection transports pipe, line means for correcting and beam position pick-up unit transport the axially spaced-apart distribution of pipe along deflection.
Further, deflection transport pipe and grooved swing frame when grooved swing frame axis of rotation swings, utilize flexibly connect corrugated tube plastic deformation characteristic realization swing.
Further, fixed deflection vacuum box, flexibly connect corrugated tube and deflection and transport Guan Jun and be set to vacuum.
Further, the angle of beam bending transports according to deflection the electric current that pipe pendulum angle position signalling controls deflection coil to reach, and makes deflected beam and deflection transport pipe pendulum angle consistent.
Further, line corrects amplitude is detect according to beam position the error amount obtained to determine.
Concrete, the line means for correcting addressed in the present invention and beam position pick-up unit all adopt known schemes of the prior art, do not repeat them here.
Principle of work of the present invention is: utilize the device flexibly connecting characteristic sum grooved swing frame that corrugated tube can be out of shape and swing.By the grooved swing frame pendulum angle data collected, and control yoke current by this angle-data and then change the magnetic field of deflection magnet, the change in magnetic field is utilized finally to reach the deflection angle changing line, finally making beam bending angle consistent with transporting pipe pendulum angle, making deflection transport pipe and being formed with beam bending angle and integrally link.And rectify a deviation when utilizing line to transport tube passage by deflection, beam position pick-up unit can provide line whether to depart from the data of center specialized range.Line is corrected and accepts beam position metrical error data and reached by adjustment line correcting coil, and the two is in close-loop feedback state.
The present invention compares with prior art, and its effect is actively with obvious.The present invention is divided into conventional fixed-type vacuum box the vacuum box that can deflect certain angle, and line arbitrarily, is dynamically deflected becomes possibility.Transport pipe position in deflection simultaneously and line correcting coil and beam position detection have been installed, line can be exported according to the angle of regulation accurately according to the requirement of doctor.Compact overall structure is reasonable.The present invention makes line arbitrarily, dynamically deflect becomes possibility.Transport pipe position in deflection simultaneously and installed line correcting coil and beam position detection, line and then transports pipe and walks, and line can be exported according to the required angle of doctor.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of beam bending tracing detection of the present invention and means for correcting.
Fig. 2 is the right view of Fig. 1.
Embodiment:
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of beam bending tracing detection of the present invention and means for correcting, comprise a fixed deflection vacuum box 1, two deflection magnets 2, two deflection coils 3, to flexibly connect 5, the deflection of corrugated tube 4, grooved swing frame and transport pipe 6, line means for correcting 7 and a beam position pick-up unit 8, described fixed deflection vacuum box 1 includes an arc opening, described grooved swing frame 5 is connected by bearing with deflection magnet 2 erecting frame, can do certain angle and swing.Wherein, described fixed deflection vacuum box 1 is placed between two deflection magnets 2, each cover deflection coil 3 outside deflection magnet 2, the bottom of the arc opening of fixed deflection vacuum box 1 is connected with an osculum end flexibly connecting corrugated tube 4, flexibly connect corrugated tube 4 big opening end to be connected with a grooved swing frame 5, described deflection transports pipe 6 and is screwed with grooved swing frame 5 and is integrated, described line means for correcting 7 and beam position pick-up unit 8 are separately positioned on the periphery that described deflection transports pipe 6, line means for correcting 7 and beam position pick-up unit 8 transport the axially spaced-apart distribution of pipe 6 along deflection.
Further, deflection transports pipe 6 and grooved swing frame 5 when grooved swing frame 5 axis of rotation swings, utilizes the plastic deformation characteristic flexibly connecting corrugated tube 4 to realize swing.
Further, fixed deflection vacuum box 1, flexibly connect corrugated tube 4 and deflection and transport pipe 6 and be all set to vacuum.
Further, the angle of beam bending transports according to deflection the electric current that pipe 6 pendulum angle position signalling controls deflection coil 3 to reach, and makes deflected beam and deflection transport pipe 6 pendulum angle consistent.
Further, line corrects amplitude is detect according to beam position the error amount obtained to determine.
The principle of work of the present embodiment is: utilize the device flexibly connecting characteristic sum grooved swing frame 5 that corrugated tube 4 can be out of shape and swing.By the grooved swing frame 5 pendulum angle data collected, and control deflection coil 3 electric current by this angle-data and then change the magnetic field of deflection magnet 2, the change in magnetic field is utilized finally to reach the deflection angle changing line, finally making beam bending angle consistent with transporting pipe 6 pendulum angle, making deflection transport pipe 6 and being formed with beam bending angle and integrally link.And rectify a deviation when utilizing line to transport pipe 6 passage by deflection, beam position pick-up unit 8 can provide line whether to depart from the data of center specialized range.Line is corrected 7 and accepts beam position metrical error data and reached by adjustment line correcting coil, and the two is in close-loop feedback state.
Claims (5)
1. a beam bending tracing detection and means for correcting, comprise a fixed deflection vacuum box, two deflection magnets, two deflection coils, one flexibly connects corrugated tube, a grooved swing frame, a deflection transports pipe, a line means for correcting and a beam position pick-up unit, described fixed deflection vacuum box includes an arc opening, it is characterized in that: described grooved swing frame is connected by bearing with deflection magnet erecting frame, grooved swing frame and deflection magnet erecting frame are set to revolute pair, described fixed deflection vacuum box is placed between two deflection magnets, two described deflection coils are set in outside deflection magnet respectively, the bottom of the arc opening of fixed deflection vacuum box is connected with the described osculum end flexibly connecting corrugated tube, the big opening end flexibly connecting corrugated tube is connected with grooved swing frame, described deflection transports pipe and is screwed is integrated with grooved swing frame, described line means for correcting and beam position pick-up unit are separately positioned on the periphery that deflection transports pipe, line means for correcting and beam position pick-up unit transport the axially spaced-apart distribution of pipe along deflection.
2. beam bending tracing detection as claimed in claim 1 and means for correcting, is characterized in that: deflection transports pipe and grooved swing frame when grooved swing frame axis of rotation swings, utilizes the plastic deformation characteristic realization swing flexibly connecting corrugated tube.
3. beam bending tracing detection as claimed in claim 1 and means for correcting, is characterized in that: fixed deflection vacuum box, flexibly connect corrugated tube and deflection and transport Guan Jun and be set to vacuum.
4. beam bending tracing detection as claimed in claim 1 and means for correcting, it is characterized in that: the angle of beam bending transports according to deflection the electric current that pipe pendulum angle position signalling controls deflection coil to reach, and makes deflected beam and deflection transport pipe pendulum angle consistent.
5. beam bending tracing detection as claimed in claim 1 and means for correcting, is characterized in that: it is detect according to beam position the error amount obtained to determine that line corrects amplitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768013.8A CN105277966B (en) | 2015-11-11 | 2015-11-11 | A kind of beam bending tracing detection and means for correcting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768013.8A CN105277966B (en) | 2015-11-11 | 2015-11-11 | A kind of beam bending tracing detection and means for correcting |
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| Publication Number | Publication Date |
|---|---|
| CN105277966A true CN105277966A (en) | 2016-01-27 |
| CN105277966B CN105277966B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510768013.8A Active CN105277966B (en) | 2015-11-11 | 2015-11-11 | A kind of beam bending tracing detection and means for correcting |
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Citations (9)
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| JPH01215487A (en) * | 1988-02-19 | 1989-08-29 | Toshiba Corp | Bender for laser beam |
| CN1190026A (en) * | 1998-01-08 | 1998-08-12 | 深圳奥沃国际科技发展有限公司 | Cradle type radiotherapeutic equipment |
| CN2296606Y (en) * | 1997-04-19 | 1998-11-04 | 深圳奥沃国际科技发展有限公司 | Medical electronic cyclotron |
| CN1676177A (en) * | 2004-03-31 | 2005-10-05 | 宋世鹏 | Multi-element focusing X-ray therapeutical apparatus |
| CN2760747Y (en) * | 2005-01-24 | 2006-02-22 | 彩虹集团电子股份有限公司 | Deflection coil edging beam static convergence correcting device |
| JP4532606B1 (en) * | 2010-01-28 | 2010-08-25 | 三菱電機株式会社 | Particle beam therapy system |
| CN102724804A (en) * | 2011-06-20 | 2012-10-10 | 广东中能加速器科技有限公司 | Method and apparatus for deflection of electronic beam of intra-operative radiation therapy apparatus |
| EP2777766A1 (en) * | 2011-11-08 | 2014-09-17 | Mitsubishi Electric Corporation | Particle beam treatment system, and beam position correction method therefor |
| CN205103409U (en) * | 2015-11-11 | 2016-03-23 | 广东中能加速器科技有限公司 | Beam bending is trailed and is detected and correcting unit |
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2015
- 2015-11-11 CN CN201510768013.8A patent/CN105277966B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01215487A (en) * | 1988-02-19 | 1989-08-29 | Toshiba Corp | Bender for laser beam |
| CN2296606Y (en) * | 1997-04-19 | 1998-11-04 | 深圳奥沃国际科技发展有限公司 | Medical electronic cyclotron |
| CN1190026A (en) * | 1998-01-08 | 1998-08-12 | 深圳奥沃国际科技发展有限公司 | Cradle type radiotherapeutic equipment |
| CN1676177A (en) * | 2004-03-31 | 2005-10-05 | 宋世鹏 | Multi-element focusing X-ray therapeutical apparatus |
| CN2760747Y (en) * | 2005-01-24 | 2006-02-22 | 彩虹集团电子股份有限公司 | Deflection coil edging beam static convergence correcting device |
| JP4532606B1 (en) * | 2010-01-28 | 2010-08-25 | 三菱電機株式会社 | Particle beam therapy system |
| CN102724804A (en) * | 2011-06-20 | 2012-10-10 | 广东中能加速器科技有限公司 | Method and apparatus for deflection of electronic beam of intra-operative radiation therapy apparatus |
| EP2777766A1 (en) * | 2011-11-08 | 2014-09-17 | Mitsubishi Electric Corporation | Particle beam treatment system, and beam position correction method therefor |
| CN205103409U (en) * | 2015-11-11 | 2016-03-23 | 广东中能加速器科技有限公司 | Beam bending is trailed and is detected and correcting unit |
Non-Patent Citations (3)
| Title |
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| JOHN T.SEEMAN ET AL.: "RF BEAM DEFLECTION MEASUREMENTS AND CORRECTIONS IN THE SLC LINAC", 《IEEE TRANSACTIONS ON NUCLEAR SCIENCE》 * |
| 张彩霞 等: "BEPCⅡ直线加速器束流位置探测器零点误差的测量", 《原子能科学技术》 * |
| 郭鑫 等: "分布式控制的束流路径自动校正方法研究", 《核技术》 * |
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| Publication number | Publication date |
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| CN105277966B (en) | 2017-09-29 |
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Effective date of registration: 20201021 Address after: No.11, Gongye Xisan Road, Songshanhu Park, Dongguan City, Guangdong Province 523000 Patentee after: Zhongneng medical accelerator system (Guangdong) Co., Ltd Address before: 523808, Guangdong province Dongguan Songshan Lake small and medium-sized science and technology enterprises Pioneer Park ten floor Patentee before: GUANGDONG SPACO ACCELERATOR TECHNOLOGY Co.,Ltd. Patentee before: Du Xijiu |
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