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TUP01 |
Challenges of a Growing Installed Base and Pencil Beam Scanning Delivery in IBA Cyclone 230 | |
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| IBA’s Cyclone 230 is now installed and operated in more than 20 proton therapy centers worldwide and is delivering beam to treat patients with an uptime above 95%. The production and installation backlogs are still growing. The goal of this paper is to present and describe the latest developments delivered by IBA R&D and Operation teams to improve the robustness of the system over the years, from sourcing to assembly and testing, and to clinical operations. The first part of the paper will be dedicated to the technological R&D roadmap and to the new features implemented on the C230 which include, among others, the new “easy-removal” electrostatic deflector, the yoke heating system, the new single cast yoke and the research work to increase the PIG ion source stability and lifetime. The second part of the paper will focus on the new challenges brought by Pencil Beam Scanning PBS in terms of requirements on the cyclotron stability and reproducibility and more specifically on the stability of the beam spot size and position after maintenance and during daily operations. | ||
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| TUP02 | Cold Cathode Ion Source for IBA CYCLONE®230 | 164 |
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| At IBA, we use a P.I.G. floating cathode ion source for injection in the CYCLONE®230 cyclotron. The purpose of the project is to investigate how the pre-sent ion source could be replaced by a P.I.G. cold cathodes one with a longer lifetime. Experiments de-scribed in this article were done on a dedicated test setup to benchmark the different modes. A new chimney design has been developed to test cold cath-ode mode in CYCLONE®230 without any other me-chanical modifications. | ||
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| TUP03 | Extraction System Design for the New IBA Cyclotron for PET Radioisotope Production | 167 |
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| At IBA, we have designed, constructed, tested and industrialized an innovative isochronous cyclotron for PET isotope production. The design has been optimized for costeffectiveness, compactness, ease of maintenance and high performances, with a particular emphasis on its application and market. Multiple target stations can be placed around the vacuum chamber. An innovative extraction method (patent applications pending) has been designed which allows to obtain the same extracted beam sizes and properties on the target window independent of the target number. This is achieved by proper design and shaping of the magnet poles. This magnetic design is discussed together with beam dynamics simulations and beam extraction tests on the first machine. | ||
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Poster TUP03 [1.246 MB] | |
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| TUP07 | Commissioning and Testing of the First IBA S2C2 | 178 |
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| The first unit of the IBA superconducting synchrocyclotron (S2C2) has been installed in Nice, France, and is currently being commissioned. In this communication, we will present some issues encountered during the commissioning of our first synchrocyclotron for protontherapy. We will mainly focus on beam aspects, showing the influence of several machine parameters on beam properties like stability, energy and intensity. | ||
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Poster TUP07 [1.403 MB] | |
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| THB01 | The S2C2: From Source to Extraction | 285 |
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| Apart from being the first constructed superconducting accelerator, the S2C2 is also the first synchro-cyclotron at IBA. To study the beam dynamics, new computational tools had to be developed dealing with much larger number of turns, the longitudinal capture in the central region and the regenerative extraction. The S2C2 is a medical accelerator requiring a precise control of the beam characteristics so a deep understanding of beam dynamics is mandatory. Our simulation strategy allows to gain important insight in the acceleration process and beam characteristics: the beam emittance and energy spread, beam losses, effects of coil misalignments, median plane errors, resonances, etc. The simulation tools are split in three parts. At first, protons are tracked from the source up to about 3 MeV with the in-house tracking code AOC. In a second part, only the energy, RF phase and orbit centers are tracked as a function of time. Finally, a detailed tracking from 225 MeV up to extraction is performed with AOC. Simulations are compared to experimental observations during in-factory testing and commissioning of the first S2C2 installed in Nice, France. | ||
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Slides THB01 [2.574 MB] | |
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| THP01 | Development and Validation of a Fast Cryocooler Maintenance System | 301 |
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| At IBA, we have been developing and testing new systems to simplify cryocooler maintenance at a minimal cost (material, interruption of service). A local heating system has been designed to heat-up both stages of a cryocooler to room temperature while keeping the cold mass at a low temperature. The heating system has to fulfill severe requirements such as high power density, compatibility with vacuum and low temperature, and easy operation. The whole system has been designed and tested in a dedicated test bench and then duplicated onto a full-size superconducting coil. It has been extensively tested under different conditions to prove that the heating system is robust and reliable and has no impact on the superconducting coil performance. | ||
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FRA02 |
The IBA S2C2: From First Unit to Industrial Product | |
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| While the first unit of the S2C2, IBA's synchrocyclotron dedicated to proton therapy, was being tested and validated for clinical operation, the "Research and Development" and "Manufacturing and Supply Chain" departments teamed up to industrialize the design, start the series production of the first batch and planned for a production ramp up. In this communication, we will describe how the team was gathered, how IBA interfaced with suppliers who also had to ramp up the production of critical components, what deliverables were required for the industrialization and how the engineers were trained for the testing and installation. We will also present how IBA will increase its manufacturing capability to cope with the already high demand from the market for this new accelerator. | ||
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Slides FRA02 [6.712 MB] | |
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