Paper | Title | Other Keywords | Page |
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MOPO001 | A Real-Time Controller for Rapid Energy Degrading of the CYCIAE-230 Cyclotron Beam Production System | controls, real-time, proton, hardware | 47 |
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The energy selection system (ESS) plays an important role in a proton therapy system. Usually, it consists of an energy degrader, a set of achromatic bending magnets, an envelope collimator, and a momentum-selecting slit. In CIAE, a dedicated beam transportation line, including these essential elements, for the CYCIAE-230 superconducting cyclotron has been designed and manufactured for study purposes. To reduce the layer switching time, e.g. typically within 50 milliseconds, this ESS system takes advantage of VME-based real-time controller design. On one side, this controller uses S-curve to direct drive the step motors of various actuators, this is done by an off-the-shelf embedded controller. On the other hand, it uses Data Distribution Service (DDS) communication protocol to tap into the nozzle control system network directly. In such a manner, the energy requirement can be efficiently handled and the controller is also responsible for the current regulation of the 46 magnets. The design of this high-efficiency controller will be reported in this paper, both from hardware and software aspects. Preliminary test results will also be evaluated and analyzed to direct further improvement of the system. | |||
DOI • | reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO001 | ||
About • | Received ※ 20 October 2022 — Revised ※ 27 January 2023 — Accepted ※ 30 January 2023 — Issue date ※ 10 July 2023 | ||
Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||
WEPO007 | The Design of a Superconducting Dipole Magnet Based on Tilted Solenoids | superconducting-magnet, dipole, quadrupole, proton | 214 |
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As a core component of proton therapy equipment, the gantry can project the proton beam onto a tumor from different angles. The weight of the gantry with normal conducting magnets(mainly normal dipole magnets and quadrupole magnets) is usually more than 150 tons, which puts forward high requirements for the design, processing and fabrication. Thus, for the realization of light-weight gantry, this article puts forward a design of Canted-Cosine-Theta(CCT) superconducting magnet used on superconducting gantry. Since the superconducting CCT magnet can produce higher magnetic field, for the proton beam with the same magnetic stiffness, the deflection radius of the magnet can be significantly reduced, thus reducing the radius and volume of the gantry. The finite element analysis software and Biot-Savart principle were adopted in this article to establish the method of magnetic field calculation for CCT superconducting magnet, and MATLAB was used to simulation and validation of particle path, which finally realize the design of CCT superconducting magnet that is applied in gantry. | |||
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Poster WEPO007 [6.541 MB] | ||
DOI • | reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-WEPO007 | ||
About • | Received ※ 28 December 2022 — Revised ※ 12 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 10 July 2023 | ||
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THPO004 | CSPT: A GPU-Accelerated Lattice Design Toolkit Especially for CCT | toolkit, lattice, simulation, optics | 299 |
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Funding: This work was supported by the National Natural Science Foundation of China under Grant 11975107, 12205111. Canted-Cosine-Thera (CCT) superconducting magnet is a promising alternative for normal-conducting magnets in compact accelerator systems such as large hadron colliders or particle therapy facilities. For the convenience of lattice design with CCT, we develop the CCT Simulation and Particle Tracking (CSPT) toolkit. It’s a program that can perform both simulations of the beam dynamic process within particle accelerators and basic electromagnetic harmonic analysis. The charged-particle tracking and electromagnetic calculation process can be accelerated by either CPU multicore or GPU parallel, with a maximum speed-up ratio of 457. The simulation result of the program is well consistent with Opera and COSY Infinity. |
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Poster THPO004 [1.496 MB] | ||
DOI • | reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-THPO004 | ||
About • | Received ※ 30 November 2022 — Revised ※ 28 January 2023 — Accepted ※ 31 January 2023 — Issue date ※ 27 March 2023 | ||
Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||