101 |
Pole insert for cyclotron |
US15594525 |
2017-05-12 |
US10064264B2 |
2018-08-28 |
Michel Abs; Szymon Zaremba |
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. |
102 |
Superconducting magnet winding structures for the generation of iron-free air core cyclotron magnetic field profiles |
US15165274 |
2016-05-26 |
US09986630B2 |
2018-05-29 |
Krunoslav Subotic |
A superconducting air core cyclotron that replaces the iron core flutter field structure with an active superconducting wire structure with a superconducting main coil generating an isochronous field, and superconducting compensation coils generating the magnetic shield for the magnetic structure. |
103 |
COMPACT ELECTRON ACCELERATOR COMPRISING PERMANENT MAGNETS |
US15805509 |
2017-11-07 |
US20180132342A1 |
2018-05-10 |
Michel ABS; Willem KLEEVEN; Jarno VAN DE WALLE; Jérémy BRISON; Denis DESCHODT |
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). |
104 |
INSERTION DEVICE |
US15572261 |
2016-07-29 |
US20180124911A1 |
2018-05-03 |
Hideo KITAMURA; Masami ARAKAWA |
An insertion device includes first and second magnet arrays facing each other with a gap therebetween, magnet supporting members adapted to support the magnet arrays mounted thereto, a gap driving mechanism for driving the first and second magnet supporting members in the vertical direction for changing the gap size, a driving conjunction mechanism for coupling the gap driving mechanism and the magnet supporting members to each other, compensation spring mechanisms adapted to compensate for attractive forces acting on the first and second magnet arrays, a spring conjunction mechanism for coupling the compensation spring mechanisms and the magnet supporting members to each other, a first supporting frame for supporting the gap driving mechanism, a second supporting frame for supporting the compensation spring mechanisms, and a common base placed on a placement surface, wherein the first supporting frame and the second supporting frame are individually coupled to the common base. |
105 |
Connection plates for power feeding |
US15324494 |
2014-09-22 |
US09934884B2 |
2018-04-03 |
Ryusuke Aoki; Jun Obata |
Plural pairs of connection plates are placed circumferentially around a plurality of circularly-arranged electromagnets, in which the plural pairs are each a pair of two connection plates placed with a gap in a radial direction and are arranged in a longitudinal direction of the connection plates. At a portion where one of the two connection plates forming a pair and one of the adjacent two connection plates forming another pair are connected, an end portion of the one of the two connection plates forming the pair and an end portion of the one of the two connection plates forming the another pair, are configured to be bent in the radial direction so that these end portions are apart from the other one of the two connection plates forming the pair, whereby the connection plates in the pair and the connection plates in the another pair are serially connected. |
106 |
Eight piece quadrupole magnet, method for aligning quadrupole magent pole tips |
US15406437 |
2017-01-13 |
US09881723B1 |
2018-01-30 |
Mark S. Jaski; Jie Liu; Aric T. Donnelly; Joshua S. Downey; Jeremy J. Nudell; Animesh Jain |
The invention provides an alternative to the standard 2-piece or 4-piece quadrupole. For example, an 8-piece and a 10-piece quadrupole are provided whereby the tips of each pole may be adjustable. Also provided is a method for producing a quadrupole using standard machining techniques but which results in a final tolerance accuracy of the resulting construct which is better than that obtained using standard machining techniques. |
107 |
Beam transport system and particle beam therapy system |
US15313499 |
2014-09-12 |
US09881711B2 |
2018-01-30 |
Shuhei Odawara; Kazushi Hanakawa |
A beam shaping device included in a beam transport system is provided with: a pre-stage quadrupole electromagnet that reduces a distribution width of x-angle components that are inclinations in the x-direction of the charged particles in the beam with respect to the traveling direction; a penumbra expander that moderates an end profile of a particle-number distribution of the x-angle components in the beam having passed through the pre-stage quadrupole electromagnet; and a post-stage quadrupole electromagnet that adjusts a betatron phase in a phase-space distribution in the x-direction, of the beam having passed through the penumbra expander; wherein the post-stage quadrupole electromagnet adjusts a phase advance angle of the betatron phase from the penumbra expander to the isocenter, to be in a range of an odd multiple of 90 degrees±45 degrees. |
108 |
Wiring of assemblies and methods of forming channels in wiring assemblies |
US14650303 |
2013-12-06 |
US09831021B2 |
2017-11-28 |
Rainer Meinke; Gregory J Shoultz; Gerald M Stelzer |
A conductor assembly and method for making an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one series of embodiments the assembly comprises a spiral configuration, positioned along paths in a series of concentric cylindrical planes, with a continuous series of connected turns, each turn including a first arc, a second arc and first and second straight segments connected to one another by the first arc. Each of the first and second straight segments in a turn is spaced apart from an adjacent straight segment in an adjoining turn. |
109 |
Lithographic method |
US14900110 |
2014-06-17 |
US09823572B2 |
2017-11-21 |
Andrey Alexandrovich Nikipelov; Olav Waldemar Vladimir Frijns; Gosse Charles De Vries; Erik Roelof Loopstra; Vadim Yevgenyevich Banine; Pieter Willem Herman De Jager; Rilpho Ludovicus Donker; Han-Kwang Nienhuys; Borgert Kruizinga; Wouter Joep Engelen; Otger Jan Luiten; Johannes Antonius Gerardus Akkermans; Leonardus Adrianus Gerardus Grimminck; Vladimir Litvinenko |
A method of patterning lithographic substrates that includes using a free electron laser to generate EUV radiation and delivering the EUV radiation to a lithographic apparatus which projects the EUV radiation onto lithographic substrates. The method further includes reducing fluctuations in the power of EUV radiation delivered to the lithographic substrates by using a feedback-based control loop to monitor the free electron laser and adjust operation of the free electron laser accordingly, and applying variable attenuation to EUV radiation that has been output by the free electron laser in order to further control the power of EUV radiation delivered to the lithographic apparatus. |
110 |
PERIPHERAL HILL SECTOR DESIGN FOR CYCLOTRON |
US15594527 |
2017-05-12 |
US20170332475A1 |
2017-11-16 |
Willem Kleeven; Michel Abs |
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. |
111 |
ULTRA-COMPACT MASS ANALYSIS DEVICE AND ULTRA-COMPACT PARTICLE ACCELERATION DEVICE |
US15329153 |
2015-07-29 |
US20170330739A1 |
2017-11-16 |
Takashi HOSAKA |
A mass analyzer includes a main substrate, an upper substrate adhered to the main substrate, and a lower substrate. A mass analysis room (cavity) is formed in the main substrate and penetrates from an upper surface of the first main substrate to a lower surface of the first main substrate. A vertical direction (Z direction) to the main substrate by the upper substrate, both sides of the lower substrate, a travelling direction (X direction) of charged particles and a right angle to the Z direction by the main substrate, and both sides of a right-angled direction (Y to Z direction) and the X direction by a side surface of the main substrate are surrounded. A central hole is open in the side plate of the main substrate that the charged particles enter. The charged particles enter the mass analysis room through the central hole formed in the first main substrate. |
112 |
Method and device for changing the direction of movement of a beam of accelerated charged particles |
US14123896 |
2012-05-25 |
US09779905B2 |
2017-10-03 |
Muradin Abubekirovich Kumakhov |
A method and a device for changing direction of movement of a beam of accelerated charged particles are based on the use of a curved channel which is made from a material that is able to be electrically charged, and formation of the same kind of charge on an inside surface of the channel wall as that of the particles. Maintenance of a condition that relates an energy and a charge of the particles to geometrical parameters of the channel is required, in particular, a radius R of curvature of a longitudinal axis thereof, and to electrical strength of the wall material. The beam can possibly be rotated through large angles without loss of intensity, significantly simplifying a design, and also reducing the mass and dimensions of all devices, particularly by obviating a need for magnets and supply voltage and control voltage sources for such devices. |
113 |
HYBRID STANDING WAVE/TRAVELING LINEAR ACCELERATORS PROVIDING ACCELERATED CHARGED PARTICLES OR RADIATION BEAMS |
US15456057 |
2017-03-10 |
US20170265292A1 |
2017-09-14 |
Andrey MISHIN |
A hybrid linear accelerator is disclosed comprising a standing wave linear accelerator section (“SW section”) followed by a travelling wave linear accelerator section (“TW section”). In one example, RF power is provided to the TW section and power not used by the TW section is provided to the SW section via a waveguide. An RF switch, an RF phase adjuster, and/or an RF power adjuster is provided along the waveguide to change the energy and/or phase of the RF power provided to the SW section. In another example, RF power is provided to both the SW section and the TW section, and RF power not used by the TW section is provided to the SW section, via an RF switch, an RF phase adjuster, and/or an RF power. In another example, an RF load is matched to the output of the TW section by an RF switch. |
114 |
HIGH FREQUENCY COMPACT LOW-ENERGY LINEAR ACCELERATOR DESIGN |
US15503895 |
2014-08-15 |
US20170238408A1 |
2017-08-17 |
Alessandra Lombardi; Maurizio Vretenar; Serge Mathot; Alexej Grudiev |
A compact radio-frequency quadrupole ‘RFQ’ accelerator for accelerating charged particles, the RFQ accelerator comprising: a bunching section configured to have a narrow radio-frequency ‘rf’ acceptance such that only a portion of a particle beam incident on the bunching section is captured, and wherein the bunching section bunches the portion of the particle beam; an accelerating section for accelerating the bunched portion of the particle beam to an output energy; and, a means for supplying radio-frequency power. |
115 |
BEAM TRANSPORT SYSTEM AND PARTICLE BEAM THERAPY SYSTEM |
US15313499 |
2014-09-12 |
US20170213613A1 |
2017-07-27 |
Shuhei ODAWARA; Kazushi HANAKAWA |
A beam shaping device included in a beam transport system is provided with: a pre-stage quadrupole electromagnet that reduces a distribution width of x-angle components that are inclinations in the x-direction of the charged particles in the beam with respect to the traveling direction; a penumbra expander that moderates an end profile of a particle-number distribution of the x-angle components in the beam having passed through the pre-stage quadrupole electromagnet; and a post-stage quadrupole electromagnet that adjusts a betatron phase in a phase-space distribution in the x-direction, of the beam having passed through the penumbra expander; wherein the post-stage quadrupole electromagnet adjusts a phase advance angle of the betatron phase from the penumbra expander to the isocenter, to be in a range of an odd multiple of 90 degrees±45 degrees. |
116 |
Adjusting energy of a particle beam |
US15074975 |
2016-03-18 |
US09706636B2 |
2017-07-11 |
Gerrit Townsend Zwart; Kenneth P. Gall; Jan Van der Laan; Stanley Rosenthal; Michael Busky; Charles D. O'Neal, III; Ken Yoshiki Franzen |
An example particle accelerator includes a coil to provide a magnetic field to a cavity; a particle source to provide a plasma column to the cavity; a voltage source to provide a radio frequency (RF) voltage to the cavity to accelerate particles from the plasma column, where the magnetic field causes particles accelerated from the plasma column to move orbitally within the cavity; an enclosure containing an extraction channel to receive the particles accelerated from the plasma column and to output the received particles from the cavity; and a structure arranged proximate to the extraction channel to change an energy level of the received particles. |
117 |
CONNECTION PLATES FOR POWER FEEDING |
US15324494 |
2014-09-22 |
US20170194072A1 |
2017-07-06 |
Ryusuke AOKI; Jun OBATA |
Plural pairs of connection plates are placed circumferentially around a plurality of circularly-arranged electromagnets, in which the plural pairs are each a pair of two connection plates placed with a gap in a radial direction and are arranged in a longitudinal direction of the connection plates. At a portion where one of the two connection plates forming a pair and one of the adjacent two connection plates forming another pair are connected, an end portion of the one of the two connection plates forming the pair and an end portion of the one of the two connection plates forming the another pair, are configured to be bent in the radial direction so that these end portions are apart from the other one of the two connection plates forming the pair, whereby the connection plates in the pair and the connection plates in the another pair are serially connected. |
118 |
Particle beam therapy system |
US14890542 |
2013-08-29 |
US09694209B2 |
2017-07-04 |
Toshihiro Otani; Syuhei Odawara |
A particle beam transport section comprises a horizontal deflection electromagnet which deflects a particle beam to a direction which is parallel to an accelerator median plane of a circular accelerator, a first perpendicular electromagnet which deflects a particle beam whose travelling direction is deflected by the horizontal deflection electromagnet to a direction which is different from a direction which is parallel to the accelerator median and a second perpendicular electromagnet which deflects the particle beam whose travelling direction is deflected by the first perpendicular deflection to a direction which is parallel to the accelerator median plane, wherein the horizontal deflection electromagnet is provided on a floor which is different from a floor where a particle beam irradiation unit is provided. |
119 |
PARTICLE THERAPY SYSTEM AND METHOD WITH PARALLEL CONTROL OF ENERGY VARIATION AND BEAM POSITION VARIATION |
US15375259 |
2016-12-12 |
US20170165502A1 |
2017-06-15 |
Yves Claereboudt; Damien Prieels |
The present disclosure relates to a particle therapy system for irradiating a target with a scanning beam technique. In one implementation, the system includes an irradiation planning device with a planning algorithm configured to associate a particle beam energy E(i) to each spot of the irradiation plan and organize the spots in a sequence of spots according to energy. The system may further include a control system configured for controlling in parallel, from spot to spot, a variation of an output energy of a beam generator, a variation of a magnetic field of one or more electromagnets of a beam transport system and a variation of a magnetic field of the scanning magnet. |
120 |
Scanning system for a particle therapy system |
US14184990 |
2014-02-20 |
US09661736B2 |
2017-05-23 |
Charles D. O'Neal, III; Adam C. Molzahn |
An example particle therapy system includes: a particle accelerator to output a beam of charged particles; and a scanning system to scan the beam across at least part of an irradiation target. An example scanning system includes: a scanning magnet to move the beam during scanning; and a control system (i) to control the scanning magnet to produce uninterrupted movement of the beam over at least part of a depth-wise layer of the irradiation target so as to deliver doses of charged particles to the irradiation target; and (ii) to determine, in synchronism with delivery of a dose, information identifying the dose actually delivered at different positions along the depth-wise layer. |