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公开(公告)号:US10271418B2
公开(公告)日:2019-04-23
申请号:US15805509
申请日:2017-11-07
摘要: An electron accelerator is provided. The electron accelerator comprises a resonant cavity comprising a hollow closed conductor, an electron source configured to inject a beam of electrons, and an RF system. The electron accelerator further comprises a magnet unit, comprising a deflecting magnet. The deflecting magnet is configured to generate a magnetic field in a deflecting chamber in fluid communication with the resonant cavity by a deflecting window. The magnetic field is configured to deflect an electron beam emerging out of the resonant cavity through the deflecting window along a first radial trajectory in the mid-plane (Pm) and to redirect the electron beam into the resonant cavity through the deflecting window towards the central axis along a second radial trajectory. The deflecting magnet is composed of first and second permanent magnets positioned on either side of the mid-plane (Pm).
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公开(公告)号:US20180279499A1
公开(公告)日:2018-09-27
申请号:US15903609
申请日:2018-02-23
发明人: Michel Abs , Denis Joassin
摘要: In accordance with the embodiments of the present disclosure, a rack comprising a frame having first vertical posts on a first side and second vertical posts on a second side, between which a plurality of RF amplifier modules are mounted, is provided. The RF power outputs of the RF amplifier modules are connected to inputs of an RF power combiner to deliver a combined RF power output. The RF power combiner is arranged at least partially in at least one of a first volume between the first vertical posts of the frame or a second volume between the second vertical posts of the frame, thereby reducing a footprint of the rack.
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公开(公告)号:US20170332474A1
公开(公告)日:2017-11-16
申请号:US15594538
申请日:2017-05-12
发明人: Michel Abs , Sébastien De Neuter
CPC分类号: H05H7/10 , H01F3/10 , H01F7/02 , H01F7/20 , H05H7/001 , H05H7/04 , H05H13/005 , H05H13/08 , H05H2007/002 , H05H2007/043
摘要: The present disclosure relates to compact isochronous sector-focused cyclotrons having reduced dimensions and weight compared with state of the art cyclotrons of same energies. In one implementation, a cyclotron may include two pole magnets facing each other in a chamber defined by a yoke having base plates and flux return yokes forming a lateral wall of the chamber. The magnet poles may include between three and eight hill sectors alternating with a same number of valley sectors distributed about a central axis. The lip of the abyssal opening may be positioned at a distance from the corresponding valley peripheral edge. The flux return yoke may have a thickness in the portions facing valley sectors, such that the ratio of the product of the distance times the thickness to the square of the distance of the peripheral edge to the central axis is less than 5%.
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公开(公告)号:US09818573B2
公开(公告)日:2017-11-14
申请号:US14594852
申请日:2015-01-12
发明人: Michel Abs , Szymon Zaremba , Willem Kleeven
IPC分类号: H01J37/10 , A61L2/08 , A61N5/10 , G21K1/08 , G21K5/04 , G21K5/10 , H05G2/00 , H01J37/30 , H01J37/317 , H01J37/147 , H01J37/304
CPC分类号: H01J37/10 , A61L2/087 , A61L2202/122 , A61N5/1043 , A61N2005/1087 , G21K1/08 , G21K5/04 , G21K5/10 , H01J37/147 , H01J37/1474 , H01J37/3002 , H01J37/3005 , H01J37/304 , H01J37/3045 , H01J37/317 , H01J2237/103 , H01J2237/12 , H01J2237/14 , H01J2237/2602 , H01J2237/30 , H01J2237/31701 , H05G2/00
摘要: The present invention is related to an apparatus for transporting a charged particle beam. The apparatus may include means for scanning the charged particle beam on a target, a dipole magnet arranged upstream of the means for scanning, at least three quadrupole lenses arranged between the dipole magnet and the means for scanning and means for adjusting the field strength of said at least three quadrupole lenses in function of the scanning angle of the charged particle beam. The apparatus can be made at least single achromatic.
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公开(公告)号:US20170332475A1
公开(公告)日:2017-11-16
申请号:US15594527
申请日:2017-05-12
发明人: Willem Kleeven , Michel Abs
CPC分类号: H05H7/10 , H01F3/10 , H01F7/02 , H01F7/20 , H05H7/001 , H05H7/04 , H05H13/005 , H05H13/08 , H05H2007/002 , H05H2007/043
摘要: The present disclosure relates to a magnet pole for an isochronous sector-focused cyclotron having hill and valley sectors alternatively distributed around a central axis, Z, each hill sector having an upper surface bounded by four edges: an upper peripheral edge, an upper central edge, a first and a second upper lateral edges. The upper peripheral edge of a hill sector may be an arc of circle whose center is offset with respect to the central axis, and whose radius, Rh, is not more than 85% of a distance, Lh, from the central axis to a midpoint of the upper peripheral edge. Furthermore, the midpoint may be equidistant to the first and second upper distal ends.
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公开(公告)号:US10743401B2
公开(公告)日:2020-08-11
申请号:US16698149
申请日:2019-11-27
发明人: Michel Abs , Jeremy Brison , Willem Kleeven
摘要: A vario-energy electron accelerator includes a resonant cavity consisting of a closed conductor, an electron source injecting a beam of electrons into the resonant cavity, an RF system coupled to the resonant cavity and generating an electric field in the resonant cavity, magnet units centred on a mid-plane and generating a field in a deflecting chamber in fluid communication with the resonant cavity, the magnetic field deflecting along a first deflecting trajectory of adding length an electron beam exiting the resonant cavity along a first radial trajectory to reintroduce it into the resonant cavity along a second radial trajectory, an outlet for extracting along an extraction path an accelerated electron beam from the resonant cavity towards a target, wherein at least one of the magnet units is adapted for modifying the first deflecting trajectory to a second deflecting trajectory, allowing a variation of the energy of the electron beam.
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公开(公告)号:US20170332473A1
公开(公告)日:2017-11-16
申请号:US15594525
申请日:2017-05-12
发明人: Michel Abs , Szymon Zaremba
CPC分类号: H05H7/10 , H01F3/10 , H01F7/02 , H01F7/20 , H05H7/001 , H05H7/04 , H05H13/005 , H05H13/08 , H05H2007/002 , H05H2007/043
摘要: The present disclosure relates to a magnet pole for an isochronous sector-focused cyclotron having hill and valley sectors alternatively distributed around a central axis, Z, each hill sector having an upper surface bounded by four edges: an upper peripheral edge, an upper central edge, a first and a second upper lateral edges. The upper surface of at least one hill sector may further include: a recess extending over a length between a proximal end and a distal end along a longitudinal axis intersecting the upper peripheral edge and the upper central edge. The recess may be separate from the first and second upper lateral edges over at least 80% of its length, and a pole insert having a geometry fitting in the recess may be positioned in, and reversibly coupled to the recess.
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公开(公告)号:US09907153B2
公开(公告)日:2018-02-27
申请号:US15594538
申请日:2017-05-12
发明人: Michel Abs , Sébastien De Neuter
CPC分类号: H05H7/10 , H01F3/10 , H01F7/02 , H01F7/20 , H05H7/001 , H05H7/04 , H05H13/005 , H05H13/08 , H05H2007/002 , H05H2007/043
摘要: The present disclosure relates to compact isochronous sector-focused cyclotrons having reduced dimensions and weight compared with state of the art cyclotrons of same energies. In one implementation, a cyclotron may include two pole magnets facing each other in a chamber defined by a yoke having base plates and flux return yokes forming a lateral wall of the chamber. The magnet poles may include between three and eight hill sectors alternating with a same number of valley sectors distributed about a central axis. The lip of the abyssal opening may be positioned at a distance from the corresponding valley peripheral edge. The flux return yoke may have a thickness in the portions facing valley sectors, such that the ratio of the product of the distance times the thickness to the square of the distance of the peripheral edge to the central axis is less than 5%.
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公开(公告)号:US20150123005A1
公开(公告)日:2015-05-07
申请号:US14594852
申请日:2015-01-12
发明人: Michel Abs , Szymon Zaremba , Willem Kleeven
IPC分类号: H01J37/10
CPC分类号: H01J37/10 , A61L2/087 , A61L2202/122 , A61N5/1043 , A61N2005/1087 , G21K1/08 , G21K5/04 , G21K5/10 , H01J37/147 , H01J37/1474 , H01J37/3002 , H01J37/3005 , H01J37/304 , H01J37/3045 , H01J37/317 , H01J2237/103 , H01J2237/12 , H01J2237/14 , H01J2237/2602 , H01J2237/30 , H01J2237/31701 , H05G2/00
摘要: The present invention is related to an apparatus for transporting a charged particle beam. The apparatus may include means for scanning the charged particle beam on a target, a dipole magnet arranged upstream of the means for scanning, at least three quadrupole lenses arranged between the dipole magnet and the means for scanning and means for adjusting the field strength of said at least three quadrupole lenses in function of the scanning angle of the charged particle beam. The apparatus can be made at least single achromatic.
摘要翻译: 本发明涉及一种用于运送带电粒子束的装置。 该装置可以包括用于扫描目标上的带电粒子束的装置,布置在扫描装置上游的偶极子磁体,布置在偶极子磁体和扫描装置之间的至少三个四极透镜,以及用于调节所述 至少三个四极透镜,其功能是带电粒子束的扫描角度。 该装置可以制成至少单个消色差。
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公开(公告)号:US11277934B2
公开(公告)日:2022-03-15
申请号:US16943769
申请日:2020-07-30
发明人: Michel Abs , Denis Joassin
摘要: In accordance with the embodiments of the present disclosure, a rack comprising a frame having first vertical posts on a first side and second vertical posts on a second side, between which a plurality of RF amplifier modules are mounted, is provided. The RF power outputs of the RF amplifier modules are connected to inputs of an RF power combiner to deliver a combined RF power output. The RF power combiner is arranged at least partially in at least one of a first volume between the first vertical posts of the frame or a second volume between the second vertical posts of the frame, thereby reducing a footprint of the rack.
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