WO2007119538A1 - 荷電粒子周回装置用摂動装置 - Google Patents
荷電粒子周回装置用摂動装置 Download PDFInfo
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- WO2007119538A1 WO2007119538A1 PCT/JP2007/056496 JP2007056496W WO2007119538A1 WO 2007119538 A1 WO2007119538 A1 WO 2007119538A1 JP 2007056496 W JP2007056496 W JP 2007056496W WO 2007119538 A1 WO2007119538 A1 WO 2007119538A1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/08—Arrangements for injecting particles into orbits
Definitions
- the present invention generates a perturbation in the trajectory of a charged particle by partially superimposing a perturbation magnetic field on a main magnetic field for causing the charged particle to orbit, and makes incident charged particles have a stable circulation closed trajectory.
- the present invention relates to a perturbation device for charged particle circulation device to be taken in.
- a synchrotron or the like is known as a charged particle circulation device.
- Some synchrotrons for example, are miniaturized to a diameter of about 60 cm.
- a perturbation is generated in the trajectory of the charged particle by partially overlapping the perturbation magnetic field with the main magnetic field for circulating the charged particle, and the incident charge is caused.
- Perturbers for charged particle orbiters are used to bring particles into a stable closed orbit. This perturbation device is also called a pertabeta.
- a charged particle orbiting device such as a synchrotron generates a perturbation in a stable orbit closed orbit using a motion apparatus such as a parter beta and takes charged particles incident on the charged particle orbiting device into a stable orbit closed orbit. After that, using a high-frequency accelerating cavity placed in the stable closed orbit, charged particles that orbit the stable closed orbit are accelerated and crawled.
- FIG. 9 is a diagram schematically showing a state in which the perturbation device and the high frequency acceleration cavity are disposed with respect to the stable closed orbit of the synchrotron
- FIG. 10 is an incident on the stable closed orbit.
- FIG. 5 is a view schematically showing a state where electric particles circulate.
- FIG. 9 schematically shows a state in which the perturbator 1 and the high frequency acceleration cavity 3 are disposed relative to the stable orbit closed orbit 5 of the synchrotron, and during the incidence The trajectories of charged particles that are perturbed by Tabeta are also drawn at the same time.
- FIG. 10 schematically shows a state where charged particles which have been incident on the stable closed orbit 5, ie, the electron beam in accumulation, circulates as an electron punch (a group of electrons).
- reference numeral 7 is a central orbit existing at the center of the stable closed orbit 5.
- the main magnet that forms the orbit of the orbiting electrons and prevents the divergence of the electron beam is not shown.
- a resonance incidence method is used that generates an incidence trajectory without affecting the electron beam being accumulated.
- the electrons are in a state of resonance, and the amplitude of betatron oscillation of the electrons is large.
- a high rf acceleration voltage is applied to the rf cavity 3 while the betatron oscillation amplitude of the electrons is large, the electrons will be scattered and the stable orbit closed orbit 5 force electrons will fly out.
- the perturbation device 1 After the perturbation device 1 generates a perturbation in the stable orbit closed orbit 5 and takes in the electrons (charged particles) in the stable orbit closed orbit 5, the betatron oscillation of the electrons (charged particles) becomes small and the electron The acceleration of electrons (charged particles) by the RF accelerating cavity 3 is not actively performed until the (charged particles) start to orbit on the stable closed orbit 5! /, And so on.
- the size of the mass of the electron punch is small when the electron energy is high, but is large when the electron energy is low.
- electron energy has come to be used in a low state.
- Non-Patent Document 1 A paper published by “Yosuke Yamada's Synchrotron Radiation” Vol. 15, No. 3, pp. 15-27, entitled “New X-ray Generation by the Tabletop Synchrotron Mirako- 20”
- Non Patent Literature 2 Takeshi Takayama et al. Entitled “Sumitomo Heavy Industries Technical Report” Vol. 1.39, No. 116, August 1991 pp. 11-18 entitled “Compact Synchrotron Radiation Light Source“ Aurora ”Single Superconducting Ring Incident System” The firewood
- An object of the present invention is to provide a charged particle circulating device perturbation device capable of easily forming a desired distribution shape of a perturbation magnetic field.
- Another object of the present invention is to obtain a perturbation device for charged particle orbiting device capable of accurately forming a desired distribution shape of a perturbation magnetic field.
- Another object of the present invention is to provide a charged particle orbiting device perturbation apparatus capable of easily incorporating charged particles into a stable orbit closed orbit even if the size of the electron punch is increased. .
- Another object of the present invention is to provide a charged particle circulating device perturbation device capable of preventing the electron punch from hitting the punch even if the size of the electron punch is increased.
- a perturbation is generated in the trajectory of the charged particle by partially overlapping the perturbation magnetic field with the main magnetic field for causing the charged particle to orbit, and the incident charged particle is stably circulated closed orbit.
- the target of improvement is a perturbation device for charged particle circulation device to be incorporated into
- the perturbation device has a structure in which distortion (perturbation) is generated in the stable closed orbit by the perturbation magnetic field to facilitate incorporation of charged particles into the stable closed orbit.
- the stable closed orbit may be circular or non-circular.
- the direction in which the charged particles move in the stable orbit closed orbit is referred to as the circumferential direction
- the direction from the stable orbit closed orbit toward the center thereof and the direction from the center to the stable orbit closed orbit in the radial direction is called the orthogonal direction.
- the perturbation device for charged particle circulation device forms a perturbation magnetic field using a leakage magnetic field of a magnetic field generated by a magnetic field generation device comprising a high frequency coil.
- Magnetic field generator Corrected paper ed.
- a high frequency coil for generating a magnetic field has an opening directed toward a space forming a perturbation magnetic field to create a stray magnetic field. Then, the conductor end of the high frequency coil opposed to the opening is inclined to determine the shape of the magnetic field distribution formed in the space by the leakage magnetic field. As described above, the conductor end of the high-frequency coil is provided with a slope that determines the shape of the magnetic field distribution, and changing the shape or angle of this slope changes the distribution shape of the stray magnetic field. It can be easily and accurately formed.
- one high frequency coil includes a pair of inner conductors facing each other through a predetermined space through which a part of the stable loop closed track passes, and an outer conductor disposed outside the pair of inner conductors.
- the pair of inner and outer conductors are electrically connected in series. Then, the magnetic field generated between the pair of inner conductors and the outer conductor is leaked into the space between the pair of inner conductors to form a leaked magnetic field, and a perturbation magnetic field is formed in the space.
- the distribution shape of the perturbing magnetic field can be arbitrarily determined by changing the distribution shape of the stray magnetic field.
- the pair of inner and outer conductors form a magnetic field so as to surround the pair of inner conductors between the pair of inner and outer conductors, and
- Each structure is defined so that the stray magnetic field that leaks from the magnetic field enters the space between them.
- the above-mentioned inclination is given to the end part located in the radial direction both sides of the stable circular closed track of a pair of inner conductors.
- the distribution shape of the perturbing magnetic field formed between the pair of inner conductors can be simply made into a desired shape.
- the outer conductor is formed on both sides in the radial direction of the space formed between the pair of inner conductors, along with this space to form a pair of separate spaces through which charged particles can pass. It can define its structure. If such another space is formed, the trajectory of the charged particle has a radius Even in the case of a large change in the direction, it is possible to prevent the charged particles from being hit against the outer conductor and being lost.
- the magnetic field generator can also be composed of first and second divided magnetic field generators each comprising a high frequency coil.
- the first and second divided magnetic field generators are radially spaced to form a space between which a part of the stable closed orbit passes.
- the first and second divided magnetic field generating devices are configured to enter the leakage magnetic field into the space to form a perturbation magnetic field in the space.
- the magnetic field generating device is configured to have the first and second divided magnetic field generating devices cut radially apart, even if the size of the electron punch becomes large, the large electron punch hits the magnetic field generating device. You can effectively prevent
- Each of the first and second divided magnetic field generating devices includes an inner conductor and an outer conductor which are arranged at intervals and electrically connected in series.
- the inner conductor and the outer conductor form a magnetic field between the inner conductor and the outer conductor, and the structure is determined so as to generate an opening force force leakage magnetic field formed in the outer conductor and radially opened.
- the shape of the magnetic field distribution of the perturbing magnetic field can be properly determined by appropriately determining the size and shape of the opening and the distance between the first and second divided magnetic field generating devices. it can. Therefore, it is preferable to attach the above-mentioned inclination also to a pair of conductor end portions located on both sides of the opening of the outer conductor used for the first and second divided magnetic field generation devices.
- the inner conductor can be composed of a pair of divided inner conductors arranged in the orthogonal direction orthogonal to the circumferential direction and the radial direction of the closed loop closed orbit.
- the outer conductor has openings on both sides in the circumferential direction of the stable circular closed path, and has openings that open in the radial direction so as to surround the pair of split inner conductors.
- the positional relationship between the pair of inner divided conductors and the outer conductor is preferably determined such that the space formed between the pair of inner divided conductors and the opening are aligned in the radial direction.
- the first divided magnetic field generator and the second divided magnetic field generator may be arranged next to each other.
- the pair of split inner conductors of the first split magnetic field generating device extend along the circumferential direction and radially around the center of the stable loop closed track, and are located inside the stable loop closed track.
- the conductive plate of Further, the outer conductor of the first split magnetic field generator is constituted of a pair of arc-shaped conductive plates, a pair of conductive side plates, and a conductive connecting plate.
- the pair of arc-shaped conductive plates are positioned on both sides in the orthogonal direction of the opening, extend in the circumferential direction about the center of the stable closed orbit and extend in the orthogonal direction.
- the pair of conductive side plates is located on the outer side in the orthogonal direction of the pair of split inner conductors, and the arc-shaped conductive plate is provided at the radially outer end and extends in the circumferential direction and the radial direction.
- the conductive connecting plate connects the radially inner ends of the pair of conductive side plates.
- a pair of split inner conductors and an outer conductor are connected by a conductive short circuit plate at a position that does not interfere with the passage of charged particles.
- the pair of split inner conductors of the second split magnetic field generating device is also a pair extending in the circumferential direction and radially around the center of the stable circulation closed track and located outside the stable circulation closed track. It can comprise from the circular-arc-shaped electrically conductive board.
- the outer conductor of the second divided magnetic field generator is also composed of a pair of arc-shaped conductive plates, a pair of conductive side plates, and a conductive connecting plate. The pair of arc-shaped conductive plates are positioned on both sides of the opening in the orthogonal direction, and extend in the circumferential direction about the center of the stable closed orbit and extend in the orthogonal direction.
- the pair of conductive side plates is located on the outer side in the orthogonal direction of the pair of split inner conductors, and an arc-shaped conductive plate is provided at the radially outer end and extends in the circumferential direction and the radial direction.
- the conductive connecting plate connects the radially outer ends of the pair of conductive side plates.
- a pair of split inner conductors and an outer conductor are connected by a conductive short-circuit plate at a position that does not hinder the passage of charged particles.
- the first and second divided magnetic field generation devices are configured in this way, the first and second divided magnetic field generation devices are in the same state as they are electrically connected in parallel.
- the inner conductor force of the split magnetic field generator can be made to flow the desired leakage magnetic field necessary for the formation of the perturbing magnetic field with a simple structure by supplying high frequency current to the outer conductors respectively.
- the first divided magnetic field generation device is electrically connected in series with a pair of divided inner conductors constituting the inner conductor of the first divided magnetic field generation device and a pair of divided inner conductors of the second divided magnetic field generation device.
- the outer conductor of the second divided magnetic field generator may be electrically connected in series. In this case, the first divided magnetic field generator and the second divided magnetic field generator are electrically connected in series. Even in this way, it is possible to generate a necessary stray magnetic field.
- first and second divided magnetic field generation devices may be used as an independent high frequency coil force magnetic field generation device.
- FIG. 1 is a perspective view of a first example of an embodiment of a perturbation device for a charged particle circulation device according to the present invention, viewed from one side so that the inside can be seen through.
- FIG. 2 is an end view showing one end in the circumferential direction of the charged particle circulating device perturbing device of the first example.
- FIG. 3 is an end view showing the other end of the perturbing device for a charged particle circulating device of the first example in the circumferential direction.
- FIG. 4 is a view showing an example of the magnetic field strength distribution of a perturbation magnetic field generated by a pair of divided magnetic field generation devices.
- FIG. 5 is an end view showing one end in the circumferential direction of a modification of the first embodiment of the perturbation device for a charged particle circulation device.
- FIG. 6 is a diagram used to explain different examples of the electrical connection of the first and second divided magnetic field generation devices.
- FIG. 7 is an end view of a second example of the embodiment of the perturbation device for a charged particle circulation device according to the present invention, as viewed from one side in the circumferential direction.
- FIG. 8 A sectional view taken along the line X-X in FIG. 7 of the perturbation device for a charged particle orbiting device of the second example.
- FIG. 9 is a view schematically showing a state in which the perturbation device and the high frequency acceleration cavity are arranged in the stable orbit closed orbit of the synchrotron in the conventional example.
- FIG. 10 is a view schematically showing a state in which charged particles having entered in the prior art orbit on a stable orbit closed orbit orbit.
- the perturbation device for charged particle circulation device generates a perturbation in the trajectory of the charged particle by partially overlapping the perturbation magnetic field with the main magnetic field for causing the charged particle to circulate, and enters the orbit. It is for taking charged particles into a stable closed orbit.
- FIG. 1 is a perspective view of the charged particle circulating device perturbing device according to the present embodiment as viewed from one side
- FIG. 2 is an end view showing one end of the charged particle circulating device perturbing device according to the present embodiment in the circumferential direction
- FIG. FIG. 4 is a view showing an example of the magnetic field strength distribution of the perturbing magnetic field generated by the first and second divided magnetic field generating devices.
- the number of codes used in these figures is indicated by using 100 codes.
- the perturbing device for charged particle circulation device 101 of this example is spaced apart in the radial direction 111 of the stable circulation closed orbit 105 so as to form a space 109 a (FIG. 2) in which the perturbation magnetic field is formed.
- the first and second divided magnetic field generating devices 113A and 113B which are also arranged respectively for the high frequency coil force, are provided.
- the first and second divided magnetic field generators 113A and 113B are formed of a nonmagnetic metal such as aluminum, and generate a magnetic field by transmitting a half pulse high frequency current of 4 to 5 MHz. .
- the first divided magnetic field generation device 113A is located radially inward of the stable closed orbit 105 or the central orbit 107 than the second divided magnetic field generation device 113B.
- the first divided magnetic field generation device 113A is positioned in the moving direction of the charged particles traveling in the direction of the central orbit 107, ie, in the orthogonal direction 115 intersecting the circumferential direction of the stable closed orbit 105 and the radial direction 111 at right angles.
- the inner conductor of the first divided magnetic field generator 113A is constituted by the pair of divided inner conductors 117A and 119A.
- the outer conductor 121A has an opening on both sides in the circumferential direction of the stable closed orbit 105, and A radially open opening 122A is provided to surround the pair of split inner conductors 117A and 119A.
- the positional relationship between the pair of split inner conductors 117A and 119A and the outer conductor 121A is determined such that the gap 118A and the opening 122A formed between the pair of split inner conductors 117A and 119A are aligned in the radial direction.
- the pair of divided inner conductors 117A and 119A of the first divided magnetic field generation device 113A are located along the central orbit 107 with a radius V and a radius centering on the center of the stable closed orbit 105 or the central orbit 107.
- a pair of arc-shaped conductive plate forces extending in the direction 111 and positioned inside the central track 107 are also configured.
- the outer conductor 121A is composed of a pair of arc-shaped conductive plates 121Aa and 121Ab, a pair of conductive side plates 121Ac and 121Ad, and a conductive connecting plate 121Ae.
- the pair of arc-shaped conductive plates 121Aa and 121Ab are positioned on both sides of the opening 122A in the orthogonal direction, extend in the circumferential direction about the center of the stable closed orbit 105, and extend in the orthogonal direction. Further, the pair of conductive side plates 121AC and 121Ad are located on the outside in the orthogonal direction of the pair of split inner conductors 117A and 119A, and extend in the circumferential direction and the radial direction. Arc-shaped conductive plates 121Aa and 121Ab are provided at radially outer end portions of the pair of conductive side plates 121AC and 121Ad.
- the conductive connecting plates 121 Ae connect the radially inner end portions of the pair of conductive side plates 121 Ac and 121 Ad.
- a pair of divided inner conductors and an outer conductor are connected by a pair of conductive short plates 121Af and 121Ag at a position that does not hinder the passage of charged particles.
- the end faces of the pair of conductive plates 121Aa and 121Ab of the first divided magnetic field generation device 113A are inclined surfaces 121Ah and 121A.
- a high frequency coil is formed by the pair of split inner conductors 117A and 119A, the outer conductor 121A, and the conductive short plates 121Af and 121Ag.
- the second divided magnetic field generator 113 B is also positioned in the moving direction of the charged particles traveling in the direction of the central orbit 107, that is, in the orthogonal direction 115 orthogonal to the circumferential and radial directions 111 of the stable orbit closed orbit 105.
- And 121B The pair of divided inner conductors 117B and 119B constitute the inner conductor of the second divided magnetic field generator 113B.
- the outer conductor 121B has an opening on both sides in the circumferential direction of the stable closed orbit 105, and the corrected sheet ( «091) A radially inward opening 122B is provided to surround the pair of split inner conductors 117B and 119B.
- the pair of inner divided conductors 117B and 11 9B and the outer conductor 121B have a positional relationship such that the space 118B formed between the pair of inner divided conductors 117B and 119B and the opening 122B are aligned in the radial direction. It is fixed.
- the pair of split inner conductors 117 B and 119 B of the second split magnetic field generator 113 B extend along the central track 107 and in the radial direction 111, centering on the center of the stable closed orbit 105.
- a pair of arc-shaped conductive plates positioned inside the central orbit 107 is configured.
- the outer conductor 121B is composed of a pair of arc-shaped conductive plates 121Ba and 121Bb, a pair of conductive side plates 121Bc and 121Bd, and a conductive connecting plate 121Be.
- the pair of arc-shaped conductive plates 121Ba and 121Bb are disposed on both sides of the opening 122B in the direction orthogonal to the opening 122B, and extend circumferentially around the center of the stable closed orbit 105 and extend in the orthogonal direction respectively.
- the pair of conductive side plates 121Bc and 121Bd extend in the circumferential direction and in the radial direction on the outside in the orthogonal direction of the pair of inner conductors 117B and 119B.
- Arc-shaped conductive plates 121 ⁇ / b> Ba and 121 ⁇ / b> Bb are provided at radially inner end portions of the pair of conductive side plates 121 ⁇ / b> Bc and 121 ⁇ / b> Bd. Furthermore, the conductive connecting plates 121Be connect the radially outer end portions of the pair of conductive side plates 121Bc and 121Bd. A pair of divided inner conductors and an outer conductor are connected by a pair of conductive short plates 121Bf and 121Bg at a position not to prevent the passage of charged particles.
- the end faces of the pair of conductive plates 12 lBa and 121 Bb of the second divided magnetic field generation device 113 B are inclined surfaces 121 Bh and 121 Bi.
- a high frequency coil is formed by the pair of split inner conductors 117B and 119B, the outer conductor 121B, and the conductive short plates 121Bf and 121Bg.
- the end faces of the pair of conductive plates 121Ba and 121Bb are respectively inclined such that the distance between the two end faces is increased as the openings 122A and 122B are separated. Therefore, these end faces are composed of the inclined surfaces 121Ah and 121Ai and the inclined surfaces 121Bh and 121Bi.
- the shape of the magnetic field distribution formed across the space between the pair of conductive plates 121Aa and 121Ab and the space between the pair of conductive plates 121Ba and 121Bb is, as shown in FIG. 4, the magnetic field intensity at the center of the space 109a. Becomes zero, and the polarities of the magnetic field strength on both sides in the radial direction of the center become opposite.
- a main magnetic field is applied to the first and second divided magnetic field generators 113 A and 113 B from the orthogonal direction 115 orthogonal to the radial direction 111 of the central orbit 107.
- this main magnetic field when the first and second divided magnetic field generators 113A and 113B are not generating a perturbing magnetic field, charged particles in the stable closed orbit 105 move to the central orbit 107 of the stable closed orbit 105.
- the magnetic field strength distribution is defined to gather.
- the distribution shape of the stray magnetic fields is changed to thereby distribute the distribution of the perturbation magnetic field.
- the shape can be easily made into any shape.
- the end of the conductor of the outer conductor that constitutes a part of the high frequency coil is inclined to determine the shape of the magnetic field distribution, the distribution of leakage of the leakage magnetic field is changed by changing this inclination.
- the shape can be changed, and the distribution shape of the perturbing magnetic field can be easily formed accurately.
- first and second divided magnetic field generators 113A and 113B are spaced apart in the radial direction, the first and second divided magnetic field generators 113A, 113B are electron punches having a shape elongated in the orthogonal direction. At 113 B, it is possible to prevent the annihilation of charged particles.
- this perturbation device 101 has the same configuration as that of FIG. 1 to FIG. 4 described above, and is inclined at the end of each pair of conductive plates 121Aa, 121Ab, 121Ba, 12lBb.
- a structure without the Ah, 121Ai, 121Bh, and 121Bi may be used.
- the first and second divided magnetic field generation devices 113A and 113B are in the same state as electrically connected in parallel, and in each of the divided magnetic field generation devices, Necessary for forming a perturbing magnetic field by passing high frequency current from the conductor to the outer conductor respectively
- the first divided magnetic field is generated without connecting the inner conductors 117A and 119A of the first divided magnetic field generator 113A and the outer conductor 121A with a conductive short plate.
- a pair of split inner conductors 117A, 11 9A constituting the inner conductor of the device 113A and a pair of split inner conductors 117B, 119B of the second split magnetic field generation device 113B are electrically connected in series to form a first split magnetic field
- the outer conductor 121A of the generator 113A and the outer conductor 121B of the second divided magnetic field generator 113B may be electrically connected in series.
- the first divided magnetic field generator 113A and the second divided magnetic field generator 113B are electrically connected in series. Even in this way, the necessary stray magnetic field can be generated.
- FIG. 6 the same members as those shown in FIGS. 1 to 5 are denoted by the same reference numerals as those used in FIGS.
- FIG. 7 and FIG. 8 show the configuration of the second embodiment of the perturbation device for a charged particle circulation device according to the present invention.
- FIG. 7 is an end view from one side of the perturbation device for a charged particle circulation device of this example
- FIG. 8 is a cross-sectional view of the perturbation device for a charged particle circulation device of this embodiment taken along line X-X of FIG.
- V the reference numerals obtained by adding 200 to the reference numerals used in these figures are indicated as “V”.
- a perturbation is generated in the trajectory of the charged particle by partially overlapping the perturbation magnetic field with the main magnetic field (not shown) for orbiting the charged particle, and the charged particle entered Is taken into the stable orbit closed orbit 205.
- the magnetic field generator 201 also serving as a high-frequency coil force includes a pair of inner conductors 217a, 217b and a pair of the inner conductors 217a, 217b facing each other via a predetermined space 218 through which a part of the stable loop closed orbit 205 passes. And an outer conductor 213 disposed on the outside.
- the pair of inner conductors 217a and 217b and the outer conductor 213 are electrically connected in series.
- the magnetic field generated between the pair of inner conductors 217a, 217b and the outer conductor 213 is leaked into the space 218 between the pair of inner conductors 217a, 217b to form a leakage magnetic field, and a perturbation magnetic field is formed in the space 218. doing.
- the pair of inner conductors 217a, 217b and the outer conductor 213 surround the pair of inner conductors 217a, 217b between the pair of inner conductors 217a, 217b and the outer conductor 213.
- the structure is defined such that a magnetic field is generated, and a leakage magnetic field leaking from the magnetic field enters the space 218 between the pair of inner conductors 217a and 217b.
- the end portions 217Aa, 217Ab, 217Ba, 217Bb located on both sides in the radial direction of the stable circular closed track 205 of the pair of inner conductors 217a, 217b are inclined so that the distance dimension becomes larger as the outer conductor 213 approaches. There is.
- the end portions 217Aa, 217Ab, 217Ba, and 217Bb of the pair of inner conductors 217a and 217b are inclined to easily form the distribution shape of the perturbation magnetic field formed between the pair of inner conductors 217a and 217b. can do.
- outer conductor 213 can pass charged particles, along with space 218, on both sides in the radial direction of space 218 formed between the pair of inner conductors 217a and 217b.
- the structure is defined to form another pair of spaces 220A and 220B.
- the outer conductor 213 of the present embodiment includes first and second outer conductor constituent parts 213A and 213B disposed on the outer side of the pair of inner conductors 217a and 217b, respectively. There is.
- the first and second outer conductor components 213A and 213B are electrically connected to each other at portions not shown.
- the first and second outer conductor components 213A, 213B have a pair of conductive plates 221Aa, positioned on both sides in the radial direction, having an inner surface radially opposed to the corresponding pair of inner conductors 217a, 217b.
- a pair of 221Ab and a pair of conductive plates 221Ba and 221Bb are provided.
- the respective conductive plates 221Aa, 221Ab and 221Ba, 221Bb present on both sides in the radial direction of the pair of outer conductor constituting portions 213A, 213B are opposed to each other via a gap forming the passable range 209 on each side, and
- the conductors 217a and 217b and the pair of outer conductor components 213A and 213B are electrically connected in series on either side.
- the leaked magnetic field of the magnetic field generated by one magnetic field generation device 201 can be used to generate a perturbation magnetic field.
- the perturbation magnetic field is generated in the space 218 between the pair of inner conductors 217a and 217b, if the electron punch becomes large, As the charged particles come into contact with the pair of inner conductors 217a and 217b, the electron punch should be made large and suitable for use in some cases.
- the magnetic field generating device is configured by the first and second divided magnetic field generating devices with high frequency coil force.
- the structure of the magnetic field generator is basically the same as the structure of each of the first and second divided magnetic field generators.
- this one magnetic field generator may be disposed adjacent to the space through which a part of the stable orbit passes.
- the perturbation device for a charged particle circulation device forms a perturbation magnetic field using the leakage magnetic field of the magnetic field generated by the magnetic field generator, it is desirable to change the distribution shape of the leakage magnetic field.
- the distribution shape of the perturbation magnetic field can be easily formed.
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JP2008510865A JP5020233B2 (ja) | 2006-03-27 | 2007-03-27 | 荷電粒子周回装置用摂動装置 |
US12/294,727 US7977895B2 (en) | 2006-03-27 | 2007-03-27 | Perturbation device for charged particle circulation system |
EP07739934A EP2015619A4 (en) | 2006-03-27 | 2007-03-27 | PERTURBATION DEVICE FOR A CIRCULATION SYSTEM OF LOADED PARTICLES |
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WO2012081070A1 (ja) * | 2010-12-13 | 2012-06-21 | 株式会社光子発生技術研究所 | 荷電粒子蓄積リングへのビーム入射方法及びそのシステム |
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JP2006244879A (ja) * | 2005-03-03 | 2006-09-14 | Hiroshige Yamada | 荷電粒子の加速方法及び荷電粒子周回装置 |
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US5198674A (en) * | 1991-11-27 | 1993-03-30 | The United States Of America As Represented By The United States Department Of Energy | Particle beam generator using a radioactive source |
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- 2007-03-27 US US12/294,727 patent/US7977895B2/en not_active Expired - Fee Related
- 2007-03-27 EP EP07739934A patent/EP2015619A4/en not_active Withdrawn
- 2007-03-27 JP JP2008510865A patent/JP5020233B2/ja not_active Expired - Fee Related
- 2007-03-27 WO PCT/JP2007/056496 patent/WO2007119538A1/ja active Application Filing
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012081070A1 (ja) * | 2010-12-13 | 2012-06-21 | 株式会社光子発生技術研究所 | 荷電粒子蓄積リングへのビーム入射方法及びそのシステム |
JP5718940B2 (ja) * | 2010-12-13 | 2015-05-13 | 株式会社光子発生技術研究所 | 荷電粒子蓄積リングへのビーム入射方法及びそのシステム |
Also Published As
Publication number | Publication date |
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JP5020233B2 (ja) | 2012-09-05 |
EP2015619A1 (en) | 2009-01-14 |
US20100231335A1 (en) | 2010-09-16 |
US7977895B2 (en) | 2011-07-12 |
EP2015619A4 (en) | 2011-08-24 |
JPWO2007119538A1 (ja) | 2009-08-27 |
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