Results 41 to 50 of about 3,829 (116)
PLoS ONE, 2020 Flash-cooling of macromolecular crystals for X-ray diffraction analysis is usually performed in liquid nitrogen (LN2). Cryogens different than LN2 are used as well for this procedure but are highly underrepresented, e.g., liquid propane and liquid ethane.
Jean-Marc Jeckelmann +3 more
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A Knittable Neural‐Inspired MXene‐Aramid Fiber for Wearable High‐Fidelity Signal Transmission
Small StructuresKnittable conductive fibers have emerged as key components for multifunctional textiles used in energy storage, sensing, and protective wear. A persistent challenge in this field, however, is maintaining signal integrity across extended distances within ...
Jizhen Zhang +6 more
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Beam halo collimation in heavy ion synchrotrons
Physical Review Special Topics. Accelerators and Beams, 2015 This paper presents a systematic study of the halo collimation of ion beams from proton up to uranium in synchrotrons. The projected Facility for Antiproton and Ion Research synchrotron SIS100 is used as a reference case.
I. Strašík +2 more
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Atomic resolution coherent x-ray imaging with physics-based phase retrieval
npj Computational MaterialsCoherent x-ray imaging and scattering from accelerator based sources such as synchrotrons continue to impact biology, medicine, technology, and materials science.
Jason Meziere +4 more
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Overcoming an intrinsic depolarizing resonance with a partial Siberian snake
Physical Review Special Topics. Accelerators and Beams, 2004 An 11.4% partial Siberian snake was used to successfully accelerate polarized protons through a strong intrinsic depolarizing spin resonance in the Alternating Gradient Synchrotron (AGS). No noticeable depolarization was observed.
H. Huang +14 more
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Complex bend: Strong-focusing magnet for low-emittance synchrotrons
Physical Review Accelerators and Beams, 2018 Modern synchrotron light sources are competing intensively to increase x-ray brightness and, eventually, approach the diffraction limit, which sets the final goal of lattice emittance.
G. Wang +7 more
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Possibility of crystal extraction and collimation in the sub-GeV range
Physical Review Special Topics. Accelerators and Beams, 2007 Bent crystal situated in a circulating beam can serve for efficient slow extraction or active collimation of the beams. This technique, well established at 1–1000 GeV, could be efficient also at the energies as low as 0.1–1 GeV according to the computer ...
S. Bellucci, V. M. Biryukov
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Dipole fringe field thin map for compact synchrotrons
Physical Review Special Topics. Accelerators and Beams, 2015 The Lie map generator of the dipole fringe field is derived up to the 4th order of canonical variables. We discovered significant closed orbit deviation and octupolelike potential when the bending radius ρ is small.
Kilean Hwang, S. Y. Lee
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Transverse beam instabilities in low-emittance booster synchrotrons
Physical Review Accelerators and BeamsAs the ring-based light source community is moving toward fourth-generation light sources, many facilities plan to upgrade their boosters in parallel to meet the more demanding beam properties for the storage ring, especially in terms of a much lower ...
W. Foosang +3 more
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Generalized threshold of longitudinal multibunch instability in synchrotrons
Physical Review Accelerators and BeamsBeam stability is a crucial requirement for all particle accelerators. Coupled-bunch instability (CBI) is driven by beam interaction with narrowband impedance of the resonant accelerator components.
Ivan Karpov, Elena Shaposhnikova
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