Adolfo Velez Saiz is a professor of accelerator physics at TU Dortmund

© HZB

Technische Universität Dortmund and Helmholtz-Zentrum Berlin have jointly appointed Prof. Adolfo Velez Saiz as a professor of accelerator physics. He heads the Cavity Development workgroup at the HZB institute SRF – Science and Technology. With this appointment, HZB is expanding its expertise in the development of new accelerator technologies.

Adolfo Velez Saiz is developing novel superconducting cavities made of niobium for the upgrade project BESSY VSR (Variable-pulse-length storage ring). Cavities are important components in accelerators. As electron bunches fly through these hollow resonators, they recover the energy that they had previously radiated off as X-ray light.

Superconducting cavities like those used for BESSY VSR must satisfy extreme requirements. Among other things, they must be able to withstand high currents and very high voltages. To make the cavities superconducting, they have to be cooled to minus 271 degrees Celsius. Velez Saiz and his team are working on the technical design of the cavities as well as the necessary cryo-modules hosting the cold-string inside. The first prototypes of four-celled cavities – as are planned to be used in BESSY VSR – are expected by the end of 2020.

With this joint professorship, HZB is reinforcing its cooperation with TU Dortmund, which has longstanding experience in accelerator physics and the development of new accelerator components. TU Dortmund operates the synchrotron radiation facility DELTA (Dortmund Electron Accelerator), which is available for user operation. Adolfo Velez Saiz will be offering lectures at the University during the coming winter semester.

Short biography

Adolfo Velez Saiz has worked at Helmholtz-Zentrum Berlin since 2013 in the institute SRF – Science and Technology under the direction of Prof. Jens Knobloch. Before that, the professor worked in the accelerator team at the Spanish neutron source ESS Bilbao. He studied and earned his doctorate in physics at Universitat Autònoma de Barcelona, where he also worked as a postdoctoral researcher.  

 

(sz)

You might also be interested in

  • 40 years of research with synchrotron light in Berlin
    News
    14.09.2022
    40 years of research with synchrotron light in Berlin
    Press release _ Berlin, 14 September: For decades, science in Berlin has been an important driver of innovation and progress. Creative, talented people from all over the world come together here and develop new ideas from which we all benefit as a society. Many discoveries – from fundamental insights to marketable products – are made by doing research with synchrotron light. Researchers have had access to this intense light in Berlin for 40 years. It inspires many scientific disciplines and is an advantage for Germany.

  • Professorship at the University of Augsburg for Felix Büttner
    News
    29.08.2022
    Professorship at the University of Augsburg for Felix Büttner
    Felix Büttner has led a junior research group at HZB. Now he has accepted a call to the University of Augsburg. As head of a joint research group, he will continue his studies of magnetic skyrmions at BESSY II.
  • Humboldt Fellow Alexander Gray comes to HZB
    News
    12.08.2022
    Humboldt Fellow Alexander Gray comes to HZB
    Alexander Gray from Temple University in Philadelphia, USA, is working with HZB physicist Florian Kronast to investigate novel 2D quantum materials at BESSY II. With the fellowship from the Alexander von Humboldt Foundation, he can now deepen this cooperation. At BESSY II, he wants to further develop depth-resolved X-ray microscopic and spectroscopic methods in order to investigate 2D quantum materials and devices for new information technologies even more thoroughly.