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The new dedicated HAXPES beamline P22 at PETRAIII
- Source :
- AIP conference proceedings 2054(1), 040010 (2019). doi:10.1063/1.5084611, 13th International Conference on Synchrotron Radiation Instrumentation, SRI2018, Taipei, Taiwan
- Publication Year :
- 2019
- Publisher :
- AIP Publ., 2019.
-
Abstract
- 13th International Conference on Synchrotron Radiation Instrumentation, SRI2018, Taipei, Taiwan; AIP conference proceedings 2054(1), 040010 (2019). doi:10.1063/1.5084611<br />A new undulator beamline (P22) for hard X-ray photoelectron spectroscopy (HAXPES) was built at PETRA III (DESY, Hamburg) to meet the increasing demand for HAXPES-based techniques. It provides four special instruments for high-resolution studies of the electronic and chemical structure of functional nano-materials and catalytic interfaces, with a focus on measurements under operando and/or ambient conditions: (i) a versatile solid-state spectroscopy setup with optional wide-angle lens and in-situ electrical characterization, (ii) a HAXPEEM instrument for sub-µm spectro-microscopy applications, (iii) an ambient pressure system (> 1 bar) for operando studies of catalytic reactions and (iv) a time-of-flight spectrometer as a full-field k-microscope for measurements of the 4D spectral function ρ(EB,k). The X-ray optics were designed to deliver high brightness photon flux within the HAXPES energy range 2.4 – 15 keV. An LN$_2$-cooled double-crystal monochromator with interchangeable pairs of Si(111) and (311) crystals is optionally combined with a double channel-cut post-monochromator to generate X-rays with variable energy bandpass adapted to the needs of the experiment. Additionally, the beam polarization can be varied using a diamond phase plate integrated into the beamline. Adaptive beam focusing is realized by Be compound refractive lenses and/or horizontally deflecting mirrors down to a spot size of ∼20x17 µm$^2$ with a flux of up to 1.1x10$^{13}$ ph/s (for Si(111) at 6 keV).<br />Published by AIP Publ., Melville, NY
- Subjects :
- Materials science
Optics
Beamline
business.industry
DESY
ddc:530
Undulator
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- AIP conference proceedings 2054(1), 040010 (2019). doi:10.1063/1.5084611, 13th International Conference on Synchrotron Radiation Instrumentation, SRI2018, Taipei, Taiwan
- Accession number :
- edsair.doi.dedup.....1233c151985d2ea24f60e28cfac3c92c
- Full Text :
- https://doi.org/10.1063/1.5084611