David Sayre

David Sayre
Born(1924-03-02)March 2, 1924
DiedFebruary 23, 2012(2012-02-23) (aged 87)
Alma materYale University
Oxford University
Known forSayre equation
X-ray microscopy
Coherent diffraction imaging
FORTRAN
AwardsEwald Prize
Scientific career
FieldsX-ray crystallography
X-ray microscopy
InstitutionsIBM
Stony Brook University
Doctoral advisorDorothy Hodgkin
Doctoral studentsJianwei (John) Miao

David Sayre (March 2, 1924 – February 23, 2012) was an American scientist, credited with the early development of direct methods for protein crystallography and of diffraction microscopy (also called coherent diffraction imaging). While working at IBM he was part of the initial team of ten programmers who created FORTRAN, and later suggested the use of electron beam lithography for the fabrication of X-ray Fresnel zone plates.

The International Union of Crystallography awarded Sayre the Ewald Prize in 2008 for the "unique breadth of his contributions to crystallography, which range from seminal contributions to the solving of the phase problem to the complex physics of imaging generic objects by X-ray diffraction and microscopy(...)".[1]

  1. ^ "Ewald Prize". Retrieved June 3, 2012.