D. E. Moncton
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View article: Compact neutron imaging system using axisymmetric mirrors
Compact neutron imaging system using axisymmetric mirrors Open
A dispersed release of neutrons is generated from a source. A portion of this dispersed neutron release is reflected by surfaces of a plurality of nested, axisymmetric mirrors in at least an inner mirror layer and an outer mirror layer, wh…
View article: ASU Compact XFEL
ASU Compact XFEL Open
ASU is pursuing a concept for a compact x-ray FEL (CXFEL) that uses nanopatterning of the electron beam via electron diffraction and emittance exchange to enable fully coherent x-ray output from electron beams with an energy of a few tens …
View article: Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation
Nanomodulated electron beams via electron diffraction and emittance exchange for coherent x-ray generation Open
We present a new method for generation of relativistic electron beams with current modulation on the nanometer scale and below. The current modulation is produced by diffracting relativistic electrons in single crystal Si, accelerating the…
View article: Optics for Advanced Neutron Imaging and Scattering
Optics for Advanced Neutron Imaging and Scattering Open
During the report period, we continued the work as outlined in the original proposal. We have analyzed potential optical designs of Wolter mirrors for the neutron-imaging instrument VENUS, which is under construction at SNS. In parallel, w…
View article: Magnetic ordering in rare-earth ternary superconductors
Magnetic ordering in rare-earth ternary superconductors Open
A review is given of current neutron scattering studies of rare-earth(R) ternary superconductors: RMo/sub 6/X/sub 8/(X = S or Se) and ErRh/sub 4/B/sub 4/. Most of these compounds develop antiferromagnetic long-range order which coexists mi…
View article: Nested Kirkpatrick–Baez (Montel) optics for hard X-rays
Nested Kirkpatrick–Baez (Montel) optics for hard X-rays Open
A comprehensive description and ray-tracing simulations are presented for symmetric nested Kirkpatrick–Baez (KB) mirrors, commonly used at synchrotrons and in commercial X-ray sources. This paper introduces an analytical procedure for dete…