TY - JOUR
T1 - Analysis of tapered front-coupling X-ray waveguides
AU - Bukreeva, Inna
AU - Pelliccia, Daniele
AU - Cedola, Alessia
AU - Scarinci, Fernando
AU - Ilie, Mihaela
AU - Giannini, Cinzia
AU - De Caro, Liberato
AU - Lagomarsino, Stefano
PY - 2010
Y1 - 2010
N2 - The coupling and propagation of electromagnetic waves through planar X-ray waveguides (WG) with vacuum gap and Si claddings are analyzed in detail, starting from the source and ending at the detector. The general case of linearly tapered WGs (i.e. with the entrance aperture different from the exit one) is considered. Different kinds of sources, i.e. synchrotron radiation and laboratory desk-top sources, have been considered, with the former providing a fully coherent incoming beam and the latter partially coherent beams. It is demonstrated that useful information about the parameters of the WG can be derived, comparing experimental results with computer simulation based on analytical solutions of the Helmholtz equation which take into account the amplitude and phase matching between the standing waves created in front of the WG, and the resonance modes propagating into the WG. (c) 2010 International Union of Crystallography Printed in Singapore - all rights reserved
AB - The coupling and propagation of electromagnetic waves through planar X-ray waveguides (WG) with vacuum gap and Si claddings are analyzed in detail, starting from the source and ending at the detector. The general case of linearly tapered WGs (i.e. with the entrance aperture different from the exit one) is considered. Different kinds of sources, i.e. synchrotron radiation and laboratory desk-top sources, have been considered, with the former providing a fully coherent incoming beam and the latter partially coherent beams. It is demonstrated that useful information about the parameters of the WG can be derived, comparing experimental results with computer simulation based on analytical solutions of the Helmholtz equation which take into account the amplitude and phase matching between the standing waves created in front of the WG, and the resonance modes propagating into the WG. (c) 2010 International Union of Crystallography Printed in Singapore - all rights reserved
UR - http://www3.interscience.wiley.com.ezproxy.lib.monash.edu.au/journal/123238611/abstract?CRETRY=1&SRETRY=0
U2 - 10.1107/S0909049509038515
DO - 10.1107/S0909049509038515
M3 - Article
VL - 17
SP - 61
EP - 68
JO - Journal of Synchrotron Radiation
JF - Journal of Synchrotron Radiation
SN - 0909-0495
ER -