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Title |
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| MOPOGE07 |
High Power RF Transmission Lines of the Light Proton Therapy Linac |
158 |
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- J.L. Navarro Quirante, D. Aguilera Murciano, S. Benedetti, G. Castorina, C. Cochrane, G. De Michele, J. Douthwaite, A. Eager, S. Fanella, M. Giles, D. Kaye, V.F. Khan, J. Mannion, J. Morris, J.F. Orrett, N. Pattalwar, E. Rose, D. Soriano Guillén
AVO-ADAM, Meyrin, Switzerland
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The LIGHT (Linac for Image-Guided Hadron Therapy) machine is designed to accelerate a proton beam up to 230 MeV to treat deep seated tumours. The machine consists of three different kinds of accelerators: RFQ (Radio-Frequency Quadrupole), SCDTL (Side Coupled Drift Tube Linac) and CCL (Coupled Cavity Linac). These accelerating structures are fed with RF power at 750 MHz (RFQ) and 3 GHz (SCDTLs and CCLs). This power is delivered to the accelerating structure via the high power RF transmission network (RF network). In addition, the RF network needs to offer other functionalities, like protection of the high RF power feeding stations, power splitting, phase and amplitude control and monitoring. The maximum power handling of the RF network corresponds to a peak RF power of 8 MW and an average RF power of 9 kW. It functions either in Ultra-High Vacuum (UHV) conditions at an ultimate operating pressure of 10-7 mbar, or under pressurized gas. The above listed requirements involve different challenges. In this contribution we exhibit the main aspects to be considered based on AVO experience during the commissioning of the RF network units.
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Poster MOPOGE07 [1.075 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOGE07
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| About • |
Received ※ 22 August 2022 — Revised ※ 28 August 2022 — Accepted ※ 29 August 2022 — Issue date ※ 02 September 2022 |
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| MOPOGE08 |
Low Level RF System of the Light Proton Therapy Linac |
161 |
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- D. Soriano Guillén, S. Benedetti, M. Cerv, G. De Michele, Ye. Ivanisenko
AVO-ADAM, Meyrin, Switzerland
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The LIGHT (Linac for Image-Guided Hadron Therapy) project was initiated to develop a modular proton accelerator delivering beam with energies up to 230 MeV for cancer therapy. The machine consists of three different kinds of accelerating structures: RFQ (Radio-Frequency Quadrupole), SCDTL (Side Coupled Drift Tube Linac) and CCL (Coupled Cavity Linac). These accelerating structures operate at 750 MHz (RFQ) and 3 GHz (SCDTL, CCL). The accelerator RF signals are generated, distributed, and controlled by a Low-Level RF (LLRF) system. The LIGHT LLRF system is based on a commercially available solution from Instrumentation Technologies with project specific customization. This LLRF system features high amplitude and phase stability, monitoring of the RF signals from the RF network and the accelerating structures at 200 Hz, RF pulse shaping over real-time interface integrated, RF breakdown detection, and thermal resonance frequency correction feedback. The LLRF system control is integrated in a Front-End Controller (FEC) which connects it to the LIGHT control system. In this contribution we present the main features of the AVO LLRF system, its operation and performance.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-LINAC2022-MOPOGE08
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| About • |
Received ※ 16 August 2022 — Revised ※ 25 August 2022 — Accepted ※ 28 August 2022 — Issue date ※ 05 September 2022 |
| Cite • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
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