The phase retrieval problem in X-ray crystallography

Author

Kim, Wooshik ; Hayes, Monson H.

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

1991

fDate

14-17 Apr 1991

Firstpage

1765

Abstract

The authors introduce several techniques which are used in the X-ray crystallography phase retrieval problem and several unique problems associated with it. Phase retrieval involves signal reconstruction from its Fourier transform magnitude, which in this case is related to the X-ray diffraction pattern intensity. The following techniques are discussed: the isomorphic addition technique, the isomorphic replacement technique, and the multiple anomalous dispersion technique. Finally, a simulation result for the X-ray crystallography problem is presented

Keywords

Fourier transforms; X-ray crystallography technique; signal processing; Fourier transform magnitude; X-ray crystallography; X-ray diffraction pattern intensity; isomorphic addition technique; isomorphic replacement technique; multiple anomalous dispersion technique; phase retrieval problem; signal processing; signal reconstruction; Atomic measurements; Contracts; Crystallography; Electrons; Fourier transforms; Information retrieval; Iterative algorithms; Phase measurement; X-ray diffraction; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on

Conference_Location

Toronto, Ont.

ISSN

1520-6149

Print_ISBN

0-7803-0003-3

Type

conf

DOI

10.1109/ICASSP.1991.150666

Filename

150666