ESRF Upgrade Programme: Accelerator and X-ray source improvements

The reliability and high performance of the accelerator complex producing the X-ray beams has always been a key element of the ESRF’s success.

Accelerator and X-ray source improvements

Thanks to the Upgrade, the following developments are possible to maintain its capabilities at the forefront:

  • An improved beam position diagnostics system, installed in 2009, provides higher beam stability and reduces the vertical emittance to world-record values. An increase of the space available in the straight sections for undulators from five to six metres. This makes possible to install more undulators, notably in a canted set-up to feed two independent end stations in selected straight sections. As of December 2011, ID18, ID30, ID24 and ID20 are equipped with 6 m long narrow aperture vacuum chambers.
  • A new RF power source based on semiconductor technology will replace some of the klystron based transmitters. This new RF power source is a more modern and more stable alternative to the aging high power klystron technology. In autumn 2011, a first batch of four 352.2 MHz - 150 kW solid state amplifiers was delivered and after thorough testing connected to the booster cavities. Three more 150 kW amplifiers will later power the cavities of the storage ring.
  • Improved RF cavities with higher-order-mode damping to replace the current cavities designed in the 1980s. The new technology will ease the tuning of the machine and enable higher electron beam currents. Three cavities have been ordered from three different suppliers and are currently being tested one by one before their definitive installation during the summer of 2013.

This Upgrade will push the accelerators and X-ray source to limits beyond the most optimistic expectations at the time of their design. Since several years, the ESRF has in parallel looked at the prospect of a new “Ultimate Storage Ring” with a brilliance fifty or one hundred times higher than possible today. Today, these studies focus on a machine to be built in the existing storage ring tunnel, replacing only the curved sections with new ones, within the second phase of the ESRF Upgrade Programme after 2015.

What’s new

  • Jocelynchavy aerial esrf lr

    Four new beamlines get go ahead at the ESRF, opening new frontiers in X-ray science

    News | 28 Jun 2017

    Four new beamlines are to be built at the ESRF (The European Synchrotron, Grenoble, France), the world-leading synchrotron X-ray source, ensuring that Europe continues to lead the world in X-ray science. This major project will provide researchers with new tools to gain unprecedented understanding of the complex structure of materials and living matter.

  • Hmba lattice

    Dr Pantaleo Raimondi wins 2017 Gersh Budker prize

    News | 28 Mar 2017

    The European Physical Society Accelerator Group (EPS-AG) has awarded the ESRF’s Accelerator & Source Director, Dr. Pantaleo Raimondi, the 2017 Gersh Budker Prize, for his outstanding contribution to the accelerator field in the form of his “invention of the Hybrid Multi Bend Achromat (HMBA) lattice”,

  • The EIB finances the European synchrotron in Grenoble for 65M€

    News | 11 Dec 2015

    With innovation as a main priority in its support of programmes of excellence in fundamental and applied research, the European Investment Bank (EIB) has decided to support the project ESRF- Extremely Brilliant Source (ESRF-EBS) to the level of 65 million euros.

  • Magma

    Remnants of an ancient magma ocean in the deep Earth revealed

    News | 4 Nov 2015

    Scientists have revealed that silicate magmas, mainly composed of MgSiO3 are denser than the rocks of the lowermost mantle.

  • Esrf 450x252

    X-ray vision deciphers archaeological mystery

    News | 30 Oct 2015

    Synchrotron light has pierced the mysteries of a small 17th Century metallic box thanks to X-ray imaging techniques developed at the ESRF. Scientists were able to virtually reconstitute, in 3D and with astounding resolution, the inaccessible contents of the very fragile and badly damaged box.

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