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Results for “BEAM”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Correcting the beam centroid motion in an induction accelerator and reducing the beam breakup instability
Not Available
Measurements and Analysis of a High-Brightness Electron Beam Collimated in a Magnetic Bunch Compressor
Abstract Not Provided
Compensation of the long-range beam-beam interactions as a path towards new configurations for the high luminosity LHC
Not Available
Focused ion beam preparation of samples for X-ray nanotomography
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A Microwave Resonance Diagnostic for Measuring Characteristics of Pulsed Ion Beams.
Abstract not provided.
On-Sun Evaluation of the PHLUX Method for Heliostat Beam Characterization.
Abstract not provided.
Transport properties of Bi 2 (Se 1-x Te x ) 3 thin films grown by molecular beam epitaxy
Not provided.
Temperature-dependent growth window of CaTiO 3 films grown by hybrid molecular beam epitaxy
Not provided.
Improved control of electron computer-generated holographic grating groove profiles using ion beam gas-assisted etching
In a transmission electron microscope, electrons are described by matter-waves with wavelengths five orders of magnitude smaller than optical electromagnetic waves. Analogous to optical holography, electron wavefronts can be shaped using nanoscale holographic gratings. Here we demonstrate a novel, scalable nanofabrication method for creating off-axis holographic gratings that demonstrate near ideal diffraction efficiencies for binary, sinusoidal, and blazed grating groove profiles. We show that this method can produce up to 50 µm diameter area gratings that diffract up to 68% of the transmitted electron wave into a desired diffraction order with less than 7% into any other order. Additionally, we find that the amount of inelastically scattered electrons from the material gratings remaining in the coherent diffraction orders from the gratings is negligible in the far field.