Technical note: Characteristics of the energy spread kernels of scattered radiation in an x-ray room.
Sign Up to like & getrecommendations! Published in 2022 at "Medical physics"
DOI: 10.1002/mp.15891
Abstract: PURPOSE To describe the scattered radiation spectra inside an x-ray room for different scatteringĀ conditions. METHODS Monte Carlo simulations of an x-ray room using phantoms of different size, varying field sizes and a range of mono-energetic… read more here.
Keywords: ray room; energy spread; energy; radiation ... See more keywords
Energy spread estimation of radioactive oxygen ion beams using optical imaging.
Sign Up to like & getrecommendations! Published in 2020 at "Physics in medicine and biology"
DOI: 10.1088/1361-6560/abc304
Abstract: Radioactive ion beams combined with in-beam positron emission tomography (PET) enable accurate in situ beam range verification in heavy ion therapy. However, the energy spread of the radioactive beams generated as secondary beams is wider… read more here.
Keywords: ion beams; spread estimation; energy; energy spread ... See more keywords
Antiproton beams with low energy spread for antihydrogen production
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/14/05/p05009
Abstract: A low energy antiproton transport from the ASACUSA antiproton accumulation trap (MUSASHI trap) to the antihydrogen production trap (double cusp trap) is developed. The longitudinal antiproton energy spread after the transport line is 0.23 +-… read more here.
Keywords: antihydrogen production; antihydrogen; low energy; energy ... See more keywords
The longitudinal energy spread of ion beams extracted from an electron cyclotron resonance ion source
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/18/04/p04018
Abstract: We present a study of factors affecting the energy spread of ion beams extracted from a Charge Breeder Electron Cyclotron Resonance Ion Source (CB-ECRIS). The comprehensive simulations, supported by experiments with a Retarding Field Analyser… read more here.
Keywords: magnetic field; energy spread; ion;
Using the optical-klystron effect to increase and measure the intrinsic beam energy spread in free-electron-laser facilities
Sign Up to like & getrecommendations! Published in 2017 at "Physical review accelerators and beams"
DOI: 10.1103/physrevaccelbeams.20.040702
Abstract: We present a setup based on the optical klystron concept, consisting of two undulator modules separated by a magnetic chicane, that addresses two issues in free-electron-laser (FEL) facilities. On the one hand, it allows increasing… read more here.
Keywords: laser; energy spread; free electron; optical klystron ... See more keywords
Combined influence of beamstrahlung and coupling impedance on beam energy spread and length in future lepton colliders
Sign Up to like & getrecommendations! Published in 2020 at "Physical review accelerators and beams"
DOI: 10.1103/physrevaccelbeams.23.101003
Abstract: A semianalytical model has been developed to study a combined effect of beamstrahlung due to beam-beam interaction and beam coupling impedance in the future lepton colliders CEPC and FCC-ee. This model allows evaluating an impact… read more here.
Keywords: coupling impedance; energy spread; future lepton; lepton colliders ... See more keywords
Reduction of arrival time jitter or energy spread with arclike variable bunch compressors
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review Accelerators and Beams"
DOI: 10.1103/physrevaccelbeams.27.110702
Abstract: Synchronizing free-electron laser pulses for time-resolved experiments is necessary as an unsynchronized system reduces the effective repetition rate of the experiment. Additionally, free-electron laser longitudinal coherence and spectral brightness are limited by electron beam energy… read more here.
Keywords: time jitter; variable bunch; time; arrival time ... See more keywords
Modeling and design of compact, permanent-magnet transport systems for highly divergent, broad energy spread laser-driven proton beams
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review Accelerators and Beams"
DOI: 10.1103/physrevaccelbeams.28.033501
Abstract: Laser-driven (LD) ion acceleration has been explored in a newly constructed short focal length laser beamline at the BELLA petawatt facility (interaction point 2, iP2). For applications utilizing such LD ion beams, a beam transport… read more here.
Keywords: transport; proton; energy; biology ... See more keywords
Phase Space Dynamics of a Plasma Wakefield Dechirper for Energy Spread Reduction.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.204804
Abstract: Plasma-based accelerators have made impressive progress in recent years. However, the beam energy spread obtained in these accelerators is still at the ā¼1% level, nearly one order of magnitude larger than what is needed for… read more here.
Keywords: energy spread; reduction; energy; phase space ... See more keywords
Ultracold Electrons via Near-Threshold Photoemission from Single-Crystal Cu(100).
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.054801
Abstract: Achieving a low mean transverse energy or temperature of electrons emitted from the photocathode-based electron sources is critical to the development of next-generation and compact x-ray free electron lasers and ultrafast electron diffraction, spectroscopy, and… read more here.
Keywords: photoemission; near threshold; threshold photoemission; energy ... See more keywords
Effects of energy spread on brightness and coherence of undulator sources.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of synchrotron radiation"
DOI: 10.1107/s1600577518010330
Abstract: The (spectral) brightness for partially transverse coherent sources such as synchrotron radiation and free-electron laser sources can be defined as the maximum of the Wigner distribution. Then, the brightness includes information on both coherence and… read more here.
Keywords: energy spread; brightness; undulator; radiation ... See more keywords