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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) December 11, 2015

Fast Calculation Algorithm Using Barton's Method for Reconstructing Three-Dimensional Atomic Images from X-ray Fluorescence Holograms

  • Tomohiro Matsushita EMAIL logo , Atsushi Kubota , Naohisa Happo , Kazuto Akagi , Natsuhiko Yoshinaga and Kouichi Hayashi

Abstract

A fast calculation algorithm for three-dimensional atomic image reconstruction from X-ray fluorescence holography (Barton's method) is described. This method employs HEALPix, an algorithm that is used to subdivide a spherical surface in which each pixel covers an identical surface area. Using this algorithm, the computing time for atomic image reconstruction is reduced by a factor of 14.5. The time can be reduced further by parallel processing and an optimization of the resolution parameter of HEALPix.

Acknowledgement

This research was supported by JSPS Grant-in-Aid for Scientific Research on Innovative Areas “3D Active-Site Science”: 26105013 2604.

Received: 2015-6-28
Accepted: 2015-11-16
Published Online: 2015-12-11
Published in Print: 2016-4-28

©2015 Walter de Gruyter Berlin/Boston

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