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Beamline-induced chromium structure in carbon K-edge absorption spectra

Schnadt, J. LU orcid ; Schiessling, J. LU ; O'Shea, J. N. ; Patthey, L. ; Shi, M. ; Puglia, C. ; Mårtensson, Nils and Brühwiler, P. A. (2001) In Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 184(4). p.609-614
Abstract

We show that Cr subcoatings in beamline optical elements can introduce an additional structure in C K-edge X-ray absorption measurements, which somewhat resembles the well-known losses produced by carbon contamination. The photon throughput variations induced by Cr and C require different treatments when correcting absorption spectra. The potential difficulties in unravelling the two effects could be avoided with efficient filtration of higher-order light.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Beamline instrumentation, C K-edge, Cr subcoating, X-ray absorption spectroscopy, X-ray optics
in
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
volume
184
issue
4
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:0035577638
ISSN
0168-583X
DOI
10.1016/S0168-583X(01)00796-0
language
English
LU publication?
no
id
2947d549-1b62-4218-ab4d-aec8d5591c97
date added to LUP
2018-08-07 22:13:41
date last changed
2025-10-14 10:48:01
@article{2947d549-1b62-4218-ab4d-aec8d5591c97,
  abstract     = {{<p>We show that Cr subcoatings in beamline optical elements can introduce an additional structure in C K-edge X-ray absorption measurements, which somewhat resembles the well-known losses produced by carbon contamination. The photon throughput variations induced by Cr and C require different treatments when correcting absorption spectra. The potential difficulties in unravelling the two effects could be avoided with efficient filtration of higher-order light.</p>}},
  author       = {{Schnadt, J. and Schiessling, J. and O'Shea, J. N. and Patthey, L. and Shi, M. and Puglia, C. and Mårtensson, Nils and Brühwiler, P. A.}},
  issn         = {{0168-583X}},
  keywords     = {{Beamline instrumentation; C K-edge; Cr subcoating; X-ray absorption spectroscopy; X-ray optics}},
  language     = {{eng}},
  month        = {{12}},
  number       = {{4}},
  pages        = {{609--614}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms}},
  title        = {{Beamline-induced chromium structure in carbon K-edge absorption spectra}},
  url          = {{http://dx.doi.org/10.1016/S0168-583X(01)00796-0}},
  doi          = {{10.1016/S0168-583X(01)00796-0}},
  volume       = {{184}},
  year         = {{2001}},
}