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Contact: Dr. Johannes Messinger
messinger@mpi-muelheim.mpg.de
49-208-306-3865
Max-Planck-Gesellschaft
Caption: The photosystem II crystal (center of image) is smaller than the head of a pin. In order to position it better, the scientists irradiate it with green light. Helium flowing in from above cools it to minus 260 degrees Celsius. The highly-pulsed and polarised X-ray hits the sample from bottom right. The tip of the EXAFS detector, which is equipped with 30 elements, protrudes from the left edge.
Credit: Johannes Messinger -- MPI for Bioinorganic Chemistry
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Related news release: Focus on photosynthesis
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