title: High-resolution transparent x-ray beam location and imaging.
abstract: We present a high-resolution in situ imaging and localization method of energetic particle beams. Recording of the scattered radiation from a thin featureless foil, placed in the path of the beam, and taken with a pinhole or coded aperture camera arrangement magnifies beam movements at the sensor. At the same time, a magnified image of the beam is available with an exceptional signal-to-noise ratio. We show measurement results of the level of precision that can be achieved and compare them to theoretical limits based on the signal-to-noise levels.
authors.affiliation: University of Manchester, Manchester, United Kingdom. r.vansilfhout@manchester.ac.uk
authors.forename: Roelof
authors.initials: R
authors.lastname: van Silfhout
authors.forename: Anton
authors.initials: A
authors.lastname: Kachatkou
authors.forename: Nicholas
authors.initials: N
authors.lastname: Kyele
authors.forename: Peter
authors.initials: P
authors.lastname: Scott
authors.forename: Thierry
authors.initials: T
authors.lastname: Martin
authors.forename: Sergey
authors.initials: S
authors.lastname: Nikitenko