Affiliation:
1. Northwestern University
2. Argonne National Laboratory
3. Chemistry of Life Processes Institute
Abstract
Scanning of lightweight circular diffractive optics, separate from
central stops and apertures, is emerging as an approach to exploit
advances in synchrotron x-ray sources. We consider the effects in a
scanning microscope of offsets between the optic and its central stop
and find that scan ranges of up to about half the diameter of the
optic are possible with only about a 10% increase in the focal spot
width. For large scanning ranges, we present criteria for the working
distance between the last aperture and the specimen to be imaged.
Funder
Basic Energy Sciences
National Institute of General Medical
Sciences
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering