Spectacular transport: Undulator moved to the electron storage ring BESSY II

A worldwide unique undulator developed at Helmholtz-Zentrum Berlin (HZB) was installed in the storage ring BESSY II on September 20, 2018.

It supplies the “Energy Materials In-Situ Lab EMIL” with the hard X-ray light from BESSY II. The transport of the six-ton device was spectacular: several cranes were used to transport the undulator just a few hundred meters from the production building to the storage ring.

Undulators are key components to operate electron storage rings. The electrons pass through complex magnetic structures and are forced into an undulating orbit. This generates synchrotron radiation of great brilliance. What is special about the new undulator is that the magnetic structures are located in a vacuum chamber and cooled with liquid nitrogen. This permits significantly stronger magnetic fields to be generated to deflect the electrons.

>Read more on the BESSY II at HZB website

Image: Arrival in the experimental hall. The undulator was lifted into the storage ring with the overhead crane.
Credit: HZB/S. Zerbe

Thailand is planning to build its ‘second’ Synchrotron Light Source

Synchrotron light source is the national infrastructure in science and technology for its contribution of research analysis from downstream, midstream, to upstream levels. Being an effective tool for advanced research, synchrotron promotes research targeting industrial applications for product development and innovation.

Thailand’s synchrotron radiation facility, the 2nd generation synchrotron light source, generates electron beam energy at 1.2 GeV covering spectral range from infrared to low-energy X-Rays. With such energy, the capacity of industrial and medical research is restricted due to the necessity of wider research techniques requiring higher energy and intensity of light. To produce high-energy X-Rays, Thailand should be compelled to develop the 4th generation of synchrotron light source with 2.5 times higher electron energy and 100,000 times higher intensity. This improvement aim to enhance research framework and facility service of Thailand to the leading position in medical, industrial, material, agricultural, food, and commercial research, including application and basic research, as well as becoming one of the top leaders in science and technology of Asia Pacific continent.

>Read more on the website of the Synchrotron Light Research Institute

Image: Architectural model of Thailand’s future second Synchrotron Light Source

MAX IV becomes the first synchrotron to successfully trial neon venting from CERN

The vacuum chambers of MAXIV are only 22 mm of diameter; the chamber size was chosen in order to fit inside the compact magnets of the storage ring. Due to the small diameter of the chamber, the conventional way of pumping using lumped pumps is not efficient nor practical, accordingly, the vacuum system of the 3 GeV storage ring is fully NEG (non-evaporable getter) coated vacuum system.
NEG coating provides the needed pumping and reduces the outgassing due to the photons hitting the chamber walls. For NEG coating to be pumping down it should be activated, activation means that the coating should be heated up to around 200˚C, consequently, any venting to atmosphere will cause the NEG coating to be saturated (can not pump) and should be followed with NEG activation to restore the coating performance. At MAX IV, in order to activate the NEG coating, a major intervention is needed, where the whole achromat (23 m) should be lifted and heated up inside an oven. Such an intervention would last from 2 weeks (if the achromat does not have insertion devices) up to 4 weeks (for achromats with insertion devices).

>Read more on the MAX IV Laboratory website


Call for nominations: Innovation Award on Synchrotron Radiation 2018

The Society of Friends of Helmholtz-Zentrum Berlin (HZB) announces the bestowal of the Innovation Award on Synchrotron Radiation*.

The award was established in 2001 for an excellent achievement which has contributed significantly to the further development of techniques, methods or uses of synchrotron radiation. Scientists and engineers from research institutions, universities, and industry within Europe are addressed. The Innovation Award includes a monetary prize of 3000 Euro and will be bestowed at the Users’ Meeting of HZB (BESSY II) in December 2018.

All nominations should be submitted to the Chair of the Society by September 30, 2018. Suggestions of candidates have to be addressed electronically and must include a concise, verifiable description in English of the scientific-technological achievement. The curriculum vitae, the publication list of the candidate(s) and at five most relevant publications have to be submitted. Two references should be named.

Please address nominations to:

Prof. Dr. Mathias Richter
Chair of the Society of Friends of Helmholtz-Zentrum Berlin
Head of Department Radiometry with Synchrotron Radiation, Physikalisch-Technische Bundesanstalt
Faculty of Mathematics and Natural Sciences, Technische Universität Berlin
Email: mathias.richter@ptb.de

*sponsored by SPECS GmbH and BESTEC GmbH, Berlin.

>Read more about the Friends of Helmholtz-Zentrum Berlin e.V. on the HZB website

Picture: Bessy II at Helmholtz-Zentrum Berlin.

Young talent from LNLS awarded at international conference

Work on components for Sirius was elected best poster.

Gabriel Vinícius Claudiano, member of the Brazilian Synchrotron Light Laboratory (LNLS), was awarded the prize for best poster in the category “young engineer under 30” during the tenth edition of the MEDSI (Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation) conference, which was held in Paris, France, between June 25th and 29th.

Gabriel’s work is related to the development of components for the beamlines of the new Brazilian synchrotron light source, Sirius. These components are located at the interface between the storage ring and the beamlines, which is called front-end, and their function is to absorb part of the synchrotron light beam to protect sensitive equipment.

>Read more on the LNLS website

Picture: Gabriel Vinícius Claudiano.

New approach to imaging single biological particles

As part of an international collaboration, scientists at European XFEL have developed and tested a novel approach for processing data from single biological particles such as proteins and viruses. Based on an idea first proposed over 40 years ago, the new method overcomes several problems of traditional approaches and could also have applications for other structural biology methods. The method is published today in the journal Physical Review Letters.

Read more on the European XFEL website

Image: Schematic illustration of the new approach. Many X-ray diffraction snapshots recorded in the XFEL experiment (left) […]. Source: European XFEL website

Pushing further towards higher brightness and coherence

The commissioning of the MAX IV synchrotron radiation facility in Lund marks the dawn of a new generation of storage-ring-based light sources. This new generation delivers one order of magnitude higher performance and allows realization of groundbreaking experiments on a variety of systems and materials at the atomic and molecular levels. This paper reviews the conceptual basis of the MAX IV design, briefly summarizes the most recent accelerator commissioning results and focusses on exploring a future development path for the MAX IV 3 GeV storage ring aimed at achieving the diffraction limit at hard x-ray wavelengths.

Read more on the MAX-IV website