CN105277966B - A kind of beam bending tracing detection and means for correcting - Google Patents
A kind of beam bending tracing detection and means for correcting Download PDFInfo
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- CN105277966B CN105277966B CN201510768013.8A CN201510768013A CN105277966B CN 105277966 B CN105277966 B CN 105277966B CN 201510768013 A CN201510768013 A CN 201510768013A CN 105277966 B CN105277966 B CN 105277966B
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Abstract
A kind of beam bending tracing detection and means for correcting, including a fixed deflection vacuum box, two deflection magnets, two deflection coils, a flexible connection bellows, a groove profile swing frame, a deflection transport tube, a line means for correcting and a beam position detection means.Groove profile swing frame is coupled with deflection magnet mounting bracket by bearing, can do certain angle swing.Fixed deflection vacuum box is placed between two deflection magnets, a deflection coil is respectively covered outside deflection magnet, flexible connection bellows two end is connected respectively deflects vacuum box and groove profile swing frame, deflection transport tube is screwed with groove profile swing frame to be integrated, line is corrected and detection means is attached separately to deflect the periphery of transport tube, and is distributed along the axially spaced-apart of deflection transport tube.The present invention makes it possible that line arbitrarily, is dynamically deflected.Line correcting coil and beam position detection are mounted with deflection transport tube position simultaneously, line is exported according to the required angle of doctor.
Description
Technical field
The present invention relates to physical field, more particularly to radiotherapy equipment, the electricity of vacuum box deflection more particularly to can be traced
A kind of beamlet, particularly line tracking deflection is detected and means for correcting.
Background technology
In the prior art, radiotherapy equipment is using fixed transit, and use energy according to line fixed deflection angle
Enough meet the vacuum box structure of angle turning, that is, deflect the vacuum box what angle just makes correspondence bending angle.But, with
The variation of the gentle line operational mode of Automated water, line is arbitrarily deflected, critically important side of the dynamic deflection as beam transport
One of formula.Originally fixed mode vacuum box and transit just turn into the obstacle that line is arbitrarily run, because line operation is place
In ultra-high vacuum environment, how to make vacuum box can meet line arbitrarily change deflection angle ensure that ultra-high vacuum state is again must
The problem of must solving.
The content of the invention：
Deflect and detected and means for correcting with line tracking deflection on demand it is an object of the invention to provide a kind of line, it is described
This line track deflection detection and line means for correcting on demand and to solve in the prior art that fixed mode vacuum box can not
Meet the technical problem that deflection angle requirement is altered as desired in line.
This line of the present invention tracks deflection detection and means for correcting, including fixed deflection vacuum box, two on demand
Individual deflection magnet, two deflection coils, flexible connection bellows, groove profile swing frame, deflection transport tube, one
Line means for correcting and a beam position detection means, described fixed deflection vacuum box include an arc opening, its
In, described groove profile swing frame is coupled with deflection magnet mounting bracket by bearing, and groove profile swing frame is installed with deflection magnet and set up
Revolute pair is set to, described fixed deflection vacuum box is placed between two deflection magnets, described two deflection coils difference
It is set in outside deflection magnet, the bottom of the arc opening of fixed deflection vacuum box is one small with described flexible connection bellows
Mouth end connection, the big opening end of flexible connection bellows is connected with groove profile swing frame, described deflection transport tube and groove profile swing frame
It is screwed and is integrated, described line means for correcting and beam position detection means is separately positioned on the week of deflection transport tube
The axially spaced-apart distribution of side, line means for correcting and beam position detection means along deflection transport tube.
Further, deflection transport tube and groove profile swing frame around groove profile swing frame axis of rotation swings when, utilize flexible company
The plastic deformation characteristic for connecing bellows realizes swing.
Further, fixed deflection vacuum box, flexible connection bellows and deflection transport tube are disposed as vacuum.
Further, the angle of beam bending is to control deflection coil according to deflection transport tube swing angle position signalling
Electric current reach, make deflected beam consistent with deflection transport tube swing angle.
Further, line correction amplitude is to detect obtained error amount to determine according to beam position.
Specifically, the line means for correcting and beam position detection means addressed in the present invention are using of the prior art
Known schemes, will not be repeated here.
The present invention operation principle be：Using being flexibly connected feature and groove profile swing frame that bellows can deform or so pendulum
Dynamic device.Yoke current is controlled to enter with the groove profile swing frame swing angle data collected, and by the angle-data
And change the magnetic field of deflection magnet, the deflection angle for changing line is finally reached using the change in magnetic field, finally makes beam bending
Angle is consistent with transport tube swing angle, deflection transport tube is formed integral linkage with beam bending angle.And led to using line
Overshoot is rectified a deviation when transporting tube passage, and beam position detection means can provide the whether off-center prescribed limit of line
Data.Line correction receives beam position detection error data and reached by adjusting line correcting coil, at the two
In closed loop feedback state.
The present invention compares with prior art, and its effect is positive and obvious.The present invention is conventional fixed-type vacuum box
The vacuum box of certain angle can be deflected by being divided into, and make it possible that line arbitrarily, is dynamically deflected.Simultaneously in deflection transport tube position
Line correcting coil and beam position detection are mounted with, enables line accurately defeated according to the angle of regulation according to the requirement of doctor
Go out.Compact overall structure is reasonable.The present invention makes it possible that line arbitrarily, is dynamically deflected.Simultaneously in deflection transport tube position peace
Line correcting coil and beam position detection are filled, line follows transport tube to walk, enables line defeated according to the required angle of doctor
Go out.
Brief description of the drawings：
Fig. 1 is the structural representation of a kind of beam bending tracing detection of the invention and means for correcting.
Fig. 2 is Fig. 1 right view.
Embodiment：
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of beam bending tracing detection and means for correcting of the invention, including a fixed deflection are true
Sylphon 1, two deflection magnets 2, two deflection coils 3, flexible connection bellows 4, groove profile swing frame 5, one partially
Turn transport tube 6, a line means for correcting 7 and a beam position detection means 8, described fixed deflection vacuum box 1 includes
There is an arc opening, described groove profile swing frame 5 is coupled with the mounting bracket of deflection magnet 2 by bearing, can do certain angle
Swing.Wherein, described fixed deflection vacuum box 1 is placed between two deflection magnets 2, each one, the set in the outside of deflection magnet 2
Deflection coil 3, the bottom of the arc opening of fixed deflection vacuum box 1 and an osculum end of a flexible connection bellows 4 connect
Connect, the flexible connection big opening end of bellows 4 is connected with a groove profile swing frame 5, described deflection transport tube 6 and groove profile swing frame 5
It is screwed and is integrated, it is defeated that described line means for correcting 7 and beam position detection means 8 is separately positioned on described deflection
The periphery of pipe 6 is transported, the axially spaced-apart of line means for correcting 7 and beam position detection means 8 along deflection transport tube 6 is distributed.
Further, deflection transport tube 6 and groove profile swing frame 5 around the axis of rotation of groove profile swing frame 5 swing when, utilize flexibility
The plastic deformation characteristic for connecting bellows 4 realizes swing.
Further, fixed deflection vacuum box 1, flexible connection bellows 4 and deflection transport tube 6 are disposed as vacuum.
Further, the angle of beam bending is to control deflection wire according to the deflection swing angle position signalling of transport tube 6
Enclose 3 electric current to reach, make deflected beam consistent with the deflection swing angle of transport tube 6.
Further, line correction amplitude is to detect obtained error amount to determine according to beam position.
The operation principle of the present embodiment is：Using being flexibly connected feature that bellows 4 can deform and groove profile swing frame 5 is left
The device of right swing.With the swing angle data of groove profile swing frame 5 collected, and pass through the angle-data and control deflection coil 3
Electric current and then the magnetic field for changing deflection magnet 2, the deflection angle for changing line is finally reached using the change in magnetic field, finally makes beam
Flow deflection angle consistent with the swing angle of transport tube 6, deflection transport tube 6 is formed integral linkage with beam bending angle.And profit
Rectified a deviation during with line by deflecting 6 passage of transport tube, whether beam position detection means 8 can provide line off-center
The data of prescribed limit.Line correction 7 is to receive beam position detection error data and reached by adjusting line correcting coil
Arrive, the two is in closed loop feedback state.
Claims (5)
1. a kind of beam bending tracing detection and means for correcting, including fixed deflection vacuum box, two deflection magnets, two
Deflection coil, flexible connection bellows, a groove profile swing frame, a deflection transport tube, a line means for correcting and
One beam position detection means, described fixed deflection vacuum box includes an arc opening, it is characterised in that：Described
Groove profile swing frame is coupled with deflection magnet mounting bracket by bearing, and groove profile swing frame is set to rotate with deflection magnet mounting bracket
Pair, described fixed deflection vacuum box is placed between two deflection magnets, and two described deflection coils are respectively sleeved at partially
Turn outside magnet, the bottom of the arc opening of fixed deflection vacuum box and an osculum end of described flexible connection bellows connect
Connect, the big opening end of flexible connection bellows is connected with groove profile swing frame, described deflection transport tube and groove profile swing frame screw
It is fixed as one, described line means for correcting and beam position detection means is separately positioned on the periphery of deflection transport tube, beam
Flow the axially spaced-apart distribution of means for correcting and beam position detection means along deflection transport tube.
2. beam bending tracing detection as claimed in claim 1 and means for correcting, it is characterised in that：Deflect transport tube and groove profile
Swing frame around groove profile swing frame axis of rotation swing when, utilize be flexibly connected bellows plastic deformation characteristic realize swing.
3. beam bending tracing detection as claimed in claim 1 and means for correcting, it is characterised in that：Fixed deflection vacuum box,
Flexible connection bellows and deflection transport tube are disposed as vacuum.
4. beam bending tracing detection as claimed in claim 1 and means for correcting, it is characterised in that：The angle of beam bending is
Control the electric current of deflection coil to reach according to deflection transport tube swing angle position signalling, deflected beam is transported with deflection
Pipe swing angle is consistent.
5. beam bending tracing detection as claimed in claim 1 and means for correcting, it is characterised in that：Line correction amplitude is root
Detect obtained error amount to determine according to beam position.
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 CN105277966A (en) | 2016-01-27 |
| CN105277966B true CN105277966B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| 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 |
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| JPH01215487A (en) * | 1988-02-19 | 1989-08-29 | Toshiba Corp | Bender for laser beam |
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| 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 |
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| 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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| CN105277966A (en) | 2016-01-27 |
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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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