Ultra-high precision x-ray polarimetry with artificial diamond channel cuts at the beam divergence limit
Bernhardt H, Schmitt AT, Grabiger B, Marx-Glowna B, Loetzsch R, Wille HC, Bessas D, Chumakov A, Rueffer R, Roehlsberger R, Stoehlker T, Uschmann I, Paulus GG, Schulze KS (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 2
Article Number: 023365
Journal Issue: 2
DOI: 10.1103/PhysRevResearch.2.023365
Abstract
We report on the use of synthetic single-crystal diamonds for high definition x-ray polarimetry. The diamonds are precision mounted to form artificial channel-cut crystals (ACCs). Each ACC supports four consecutive reflections with a scattering angle 2ΘB of 90∘. We achieved a polarization purity of 3.0×10-10 at beamline ID18 of the European Synchrotron Radiation Facility (ESRF). When the x-ray beam's horizontal divergence was reduced through additional collimation from 17 to 8.4μrad, the polarization purity improved to 1.4×10-10. Precision x-ray polarimetry thus has reached the limit, where the purity is determined by the divergence of the beam. In particular, this result is important for polarimetry at fourth generation x-ray sources, which provide diffraction-limited x-ray beams. The sensitivity expected as a consequence of the present work will pave the way for exploring new physics such as the investigation of vacuum birefringence.
Involved external institutions
Friedrich-Schiller-Universität Jena
Germany (DE)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
European Synchrotron Radiation Facility (ESRF)
France (FR)
Germany (DE)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
European Synchrotron Radiation Facility (ESRF)
France (FR)
How to cite
APA:
Bernhardt, H., Schmitt, A.T., Grabiger, B., Marx-Glowna, B., Loetzsch, R., Wille, H.-C.,... Schulze, K.S. (2020). Ultra-high precision x-ray polarimetry with artificial diamond channel cuts at the beam divergence limit. Physical Review Research, 2(2). https://doi.org/10.1103/PhysRevResearch.2.023365
MLA:
Bernhardt, Hendrik, et al. "Ultra-high precision x-ray polarimetry with artificial diamond channel cuts at the beam divergence limit." Physical Review Research 2.2 (2020).
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