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14. January 2025

Significant energy savings through optimised operation of the Metrology Light Source

At PTB's Willy Wien Laboratory, 45 kW of electrical power is permanently saved by adjusting the operating parameters

Control room of the MLS: This is where all the important operating parameters of the electron storage ring are set. © PTB

PTB uses the Metrology Light Source (MLS) electron storage ring at the Willy Wien Laboratory in Berlin-Adlershof as a very bright and calculable light source for radiometric work in the vacuum and extreme ultraviolet spectral ranges. Due to their synchrotron radiation, electron storage rings are ideal and brilliant light sources in many respects and open up various unique measurement possibilities. In particular, PTB's strong position in metrology for EUV semiconductor lithography is based on the use of such a powerful light source.

However, electron storage rings are also very energy-hungry during operation. The experts in accelerator physics at the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), who operate the MLS for PTB, have now succeeded in significantly reducing energy consumption: By optimising the operating parameters, the power of the radio frequency transmitter, which maintains the necessary energy of the electrons in the storage ring, could be reduced without impairing the properties of the radiation source that are important for PTB. This means that 45 kW of electrical power can be permanently saved for the operation of the storage ring. This is approximately 10 % of the total electrical energy requirement of the Willi Wien Laboratory. This optimisation is particularly sustainable, as the lower load also increases the service life of important system components.

Contact:

Frank Scholze
Physikalisch-Technische Bundesanstalt (PTB)
Department 7.1: Radiometry with Synchrotron Radiation
frank.scholze(at)ptb.de

 

Credit: News from PTB website, 13 December 2024

Research Grand Challenges Photonics / Optics Sustainability

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Related Institutions

  • Physikalisch-Technische Bundesanstalt PTB
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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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