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20. May 2022

Shutdown at BESSY II

New supply technology ensures long-term operation of the electron storage ring in Adlershof

Low voltage main distribution panel at BESSY II © HZB/A. Knoch
During the shutdown, the low voltage main distribution panel will be completely renewed (here in the picture: before the conversion). © HZB/A. Knoch

The X-ray source BESSY II is in a three-month period of shutdown. During this period, the low voltage main distribution panel in the supply building outside the electron storage ring is being renovated. This will secure the long-term operation of BESSY II over the next decade.

“The feeder cubicles for the power supply of the BESSY II machine are key to its reliable operation,” relates the responsible project manager Andreas Knoch from Technical Services (FM-T). The equipment section of the low voltage main distribution board comprises 36 control panels. They provide electricity to important components for operating the accelerator facility. These include, among other things, power supply units, magnets, high frequency systems, vacuum systems, climate control, osmosis water systems and IT systems.

“We need to replace the respective switchgear one-to-one, since there are no substitutes for the important components due to their age. The control cabinets will be equipped with components similar to the existing ones, except with adapted elements and additionally universal meters, active arc protection and new data bus technology in all outputs,” Knoch adds. Furthermore, new chillers will be installed during the shutdown. These will ensure the climate control in the electron storage ring runs reliably.

The interrelated work during the shutdown is being coordinated by Ingo Müller together with Christian Jung. The three months of “darkness” will therefore be used for other tasks as well: among others, for example, construction is continuing for the new experimental stations of the “BElChem” lab. In this joint project, the Max Planck Society and HZB are setting up new experimental capabilities at BESSY II for analysing material systems for electrochemical and catalytic applications. This work will continue even after the summer shutdown has ended.

Even if the shutdown were to continue into August, the interruption is the best alternative in which the least amount of measurement time is lost. “After all, all of our measures are aimed at one thing: that BESSY II will be available to our users stably and without unplanned interruptions,” says Christian Jung.

BESSY II will be started up again from 8 August 2022. Three weeks after that, on 30 August, HZB will once again be welcoming its users to the BESSY II beamlines.
 

Contact:

Helmholtz-Zentrum Berlin für Materialien und Energie
Albert-Einstein-Straße 15, 12489 Berlin
 

Contact Energy supply:

Email: FM-T-office(at)helmholtz-berlin.de
 

Contact coordination shutdown:

Ingo Müller
Department Accelerator Operation and Technology
Phone: +49 30 8062-14858
Email: ingo.mueller(at)helmholtz-berlin.de

Dr. Christian Jung
Main department Scientific-Technical Infrastructure
Phone: +49 30 8062-12944
Mobile: +49 172 3205867
Email: christian.jung(at)helmholtz-berlin.de

 

Press release HZB, 20 May 2022

Microsystems / Materials Research Photonics / Optics

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World map BESSY II users © HZB

International research at BESSY II continued even in the corona year 2021

Large scale research facility in Adlershof registered 1400 user visits from 34 countries
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The development of the Science and Technology Park Berlin Adlershof was and is co-financed by the European Union namely by EFRE. This concerns infrastructure development like construction of technology centres. Furthermore EFRE is used for international projects.

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