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Title: Laterally graded multilayer double-monochromator.

Abstract

The authors describe a tunable multilayer monochromator with an adjustable bandpass to be used for reflectivity and grazing incidence diffraction studies on surfaces at energies near 10 keV. Multilayers have a bandpass typically 100 times larger than the Si(111) reflection, and by using multilayers an experimenter can significantly increase data collection rates over those available with a Si monochromator. The transmission through 1 and 2 laterally graded multilayer (LGML) reflections was recorded versus photon energy. The identical LGMLs were comprised of 60 bilayers of W and C on 100 x 25 x 3 mm float glass with a bilayer spacing varying from 35 to 60 {angstrom}. The average gradient was 0.27 {angstrom}/mm along the long dimension. The rms deviation of the data for the bilayer spacing from a linear fit was 0.36 {angstrom}. Data were obtained for a nondispersive ({+-}) double-multilayer arrangement. The relative bandpass width (FWHM) when the two multilayers exposed the same bilayer spacing was measured to be 2.2% with a transmission of 78.7 {+-} 1.6%. This value is consistent with the transmission of 88.9% that they also measured for a single LGML at HASYLAB beamline D4. The bandpass was tunable in the range 1.1% to 2.2%.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
12436
Report Number(s):
ANL/XFD/CP-98505
TRN: US0102515
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: SPIE's Annual Meeting, Denver, CO (US), 07/18/1999--07/23/1999; Other Information: PBD: 1 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; DESIGN; DIFFRACTION; MONOCHROMATORS; REFLECTION; LAYERS; SILICON

Citation Formats

Als-Nielsen, J., Erdmann, J., Gaarde, P., Krasnicki, S., Liu, C., Macrander, A. T., Maj, J., and Mancini, D. Laterally graded multilayer double-monochromator.. United States: N. p., 1999. Web.
Als-Nielsen, J., Erdmann, J., Gaarde, P., Krasnicki, S., Liu, C., Macrander, A. T., Maj, J., & Mancini, D. Laterally graded multilayer double-monochromator.. United States.
Als-Nielsen, J., Erdmann, J., Gaarde, P., Krasnicki, S., Liu, C., Macrander, A. T., Maj, J., and Mancini, D. Wed . "Laterally graded multilayer double-monochromator.". United States. https://www.osti.gov/servlets/purl/12436.
@article{osti_12436,
title = {Laterally graded multilayer double-monochromator.},
author = {Als-Nielsen, J. and Erdmann, J. and Gaarde, P. and Krasnicki, S. and Liu, C. and Macrander, A. T. and Maj, J. and Mancini, D.},
abstractNote = {The authors describe a tunable multilayer monochromator with an adjustable bandpass to be used for reflectivity and grazing incidence diffraction studies on surfaces at energies near 10 keV. Multilayers have a bandpass typically 100 times larger than the Si(111) reflection, and by using multilayers an experimenter can significantly increase data collection rates over those available with a Si monochromator. The transmission through 1 and 2 laterally graded multilayer (LGML) reflections was recorded versus photon energy. The identical LGMLs were comprised of 60 bilayers of W and C on 100 x 25 x 3 mm float glass with a bilayer spacing varying from 35 to 60 {angstrom}. The average gradient was 0.27 {angstrom}/mm along the long dimension. The rms deviation of the data for the bilayer spacing from a linear fit was 0.36 {angstrom}. Data were obtained for a nondispersive ({+-}) double-multilayer arrangement. The relative bandpass width (FWHM) when the two multilayers exposed the same bilayer spacing was measured to be 2.2% with a transmission of 78.7 {+-} 1.6%. This value is consistent with the transmission of 88.9% that they also measured for a single LGML at HASYLAB beamline D4. The bandpass was tunable in the range 1.1% to 2.2%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Conference:
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