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1996Nåwåw@_w¶½Èwn¤Èp¶½HwêUC¹Bmi_wjB»w¤îbÈwÁÊ¤õCyV
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E­mail: shiroism.ac.jpêåFHwCMCîñ_mªðn
1996Nåwåw@Hwn¤ÈvHwêUC¹BmiHwjB»w¤îbÈwÁÊ¤õC³«ª¯¤õCãBHÆåw¶½ÌHw¤È³öðoÄv¤³öC2005N 4 æè»EB

Phase retrieval from a sparse scattering pattern
for single molecular structural analysis
Hidetoshi KONO
Shiro IKEDA
Abstract

Molecular Modeling and Simulation Group, Quantum Beam Science Directorate
Japan Atomic Energy Agency
8_1_7 Umemidai, Kizugawa, Kyoto, 619_
0215, JapanThe Institute of Statistical Mathematics
10_3 Midori­cho, Tachikawa, Tokyo 190_8562, JapanA new strong, short­pulse and coherent x­ray light source (SPring­8 Angstrom Compact Free
Electron Laser: SACLA), which has been built at SPring­8, is expected to achieve a single molecu­
lar imaging. With this 109 times brighter light than that of the current synchrotrons, we have tomeasure the diraction within a few femto­second before the molecule is destroyed due to theradiation damage. Thus, the obtained diraction pattern will be very sparse. We have recently de­veloped a phase retrieval method based on the Bayesian statistics that is applicable for such asparse diraction pattern. In this article, we introduce the method.

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