Advancements in the modeling of IH-DTL cavities for control applications

Autores/as

DOI:

https://doi.org/10.17979/ja-cea.2026.47.13744

Palabras clave:

Identificación para control, Modelado de caja gris, Sistemas de parámetros concentrados, Aplicaciones de control

Resumen

El control activo de cavidades resonantes es esencial para optimizar el rendimiento de los aceleradores de partículas. Esto requiere un modelado preciso que caracterice la respuesta de la cavidad frente a diversos parámetros controlables. Una arquitectura compacta y eficiente para la aceleración de energías bajas-medias es el Interdigital H-Mode Drift Tube Linac (IH-DTL). Sin embargo, la literatura actual carece de modelos adecuados para simulaciones orientadas al control debido a que los enfoques estándar tratan la cavidad como una entidad monolítica. Esto impide el modelado de efectos posicionales cruciales, como el sintonizado (tuning) localizado. Este trabajo presenta una metodología para caracterizar cada sección de aceleración individual como parte de un circuito a parámetros concentrados y se valida utilizando una estructura IH-DTL real. Basándonos en esta discretización, presentamos un circuito equivalente distribuido diseñado para capturar dependencias espaciales localizadas. Esta representación de parámetros concentrados es particularmente ventajosa, ya que facilita su integración y simulación dentro de entornos de computación estándar.

Biografía del autor/a

  • Beñat González, Euskal Herriko Unibertsitatea (EHU)

    Beñat Gonzalez received the bachelor’s degree in physics and electronic engineering from the University of the Basque Country (EHU), Leioa, Spain, in 2024, where he is currently pursuing the master’s degree in the European Master for Industry in Microwave Electronics and Photonics (EMIMEP) programme. His main research interests include electromagnetic simulation and structures for particle acceleration.

  • Iñigo Arredondo, Euskal Herriko Unibertsitatea (EHU)

    I˜nigo Arredondo received the bachelor’s degree in electronic engineering from the University of the Basque Country (UPV/EHU), Leioa, Spain, in 2003, the degree in physics from the University of Cantabria, Santander, Spain, in 2004, and the Ph.D. degree from UPV/EHU, in 2009. He was with the Control Group of the European Spallation Source Consortium Bilbao, Zamudio, Spain, from 2009 to 2014, where he was promoted to the Head of the Group. He then went on to take up a teaching position at the Digipen-Europe Technological Institute, Bilbao, Spain, from 2014 to 2016. He is currently an Associate Professor of Electronics and Automation at the UPV/EHU. His main research interests include design and control of particle accelerators and control of nonlinear systems.

  • Joaquín Portilla, Euskal Herriko Unibertsitatea (EHU)

    Joaqu´ın Portilla received the bachelor’s degree in physics, specializing in electronics from the University of Cantabria, Santander, Spain, in 1990, and the Ph.D. degree from the University of Limoges, Limoges, France, in 1994. In 1994, he joined the Department of Communications Engineering,
    University of Cantabria, working on research and development projects in RF and microwave circuits for radiocommunications. He conducted his Ph.D. research at IRCOM (now XLIM), University of Limoges. He also collaborated in teaching within the Telecommunications Engineering Program. In 1997, he joined the Institute of Physics of Cantabria (IFCA), Santander, to develop radiometers for the ESA’s Planck Project. In 1998, he became part of the Department of Electricity and Electronics, University of the Basque Country (UPV/EHU), Leioa, Spain, where he coleads the RF and microwave research group and participates in research and development projects in radiocom- munications and scientific instrumentation. He has held various academic management roles and is currently part of the the team driving the Erasmus Mundus Master on Innovative Electronics and Photonics.

  • Markel Larrea, Euskal Herriko Unibertsitatea (EHU)

    Markel Larrea-Undabeitia received the bachelor’s degree in physics and electronic
    engineering from the University of the Basque Country (EHU), Leioa, Spain, in 2024, where he is currently pursuing the master’s degree in the European Master for Industry in Microwave Electronics and Photonics (EMIMEP) programme. His main research interests include electromagnetic simulation, magnetrons and high-power electronics.

Referencias

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Jia, X.-Y., Zheng, S.-X., Dec. 2013. Analyzing the effects of post couplers in dtl tuning by the equivalent circuit model. Chinese Physics C 37 (12), 127005. DOI: 10.1088/1674-1137/37/12/127005

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Lu, Y., Ratzinger, U., Schlitt, B., Tiede, R., 2007. The general rf tuning for ih-dtl linear accelerators. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 582 (2), 336–344. DOI: [https://doi.org/10.1016/j.nima.2007.08.177](https://doi.org/10.1016/j.nima.2007.08.177)

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Descargas

Publicado

01-09-2026

Número

Núm. 47 (2026)

Sección

Modelado, Simulación y Optimización

Licencia

Derechos de autor 2026 Beñat González, Iñigo Arredondo, Joaquín Portilla, Markel Larrea, Jorge Feuchtwangera, Andoni Egurrola

Creative Commons License

Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.