Note: Single-shot continuously time-resolved MeV ultrafast electron diffraction

Li, Renkai; Huang, Wenhui; Du, Yingchao; Yan, Ling‐Qi; Du, Qiang; Shi, Jiaru; Hua, Jianfei; Chen, Huaibi; Du, Tingting; Xu, Haisheng; Tang, Chuanxiang

doi:10.1063/1.3361196

Cited by 64 publications

(38 citation statements)

References 17 publications

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“…statistical broadening (as well as space-charge broadening) can be reduced by the use of a high beam energy [36].…”

Section: Properties Of Pulsed Electron Beamsmentioning

confidence: 99%

Outrun radiation damage with electrons?

Egerton

2015

Adv Struct Chem Imag

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The diffract-before-destroy method, using 50-to 100-fs x-ray pulses from a free-electron laser, was designed to determine the three-dimensional structure of biological macromolecules in close to their natural state. Here we explore the possibility of using short electron pulses for the same purpose and the related question of whether radiation damage can be outrun with electrons. Major problems include Coulomb repulsion within the incident beam and the need for high lateral coherence, difficulties that are discussed in terms of existing and future electron sources. Using longer pulses of electrons appears to make the attainment of near-atomic resolution more feasible, at least for nanocrystalline particles, whereas obtaining this information from single-molecule particles in an aqueous environment seems a more distant goal. We also consider the possibility of serial crystallography using a liquid jet injector with a continuous electron beam in a transmission electron microscope (TEM).

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“…statistical broadening (as well as space-charge broadening) can be reduced by the use of a high beam energy [36].…”

Section: Properties Of Pulsed Electron Beamsmentioning

confidence: 99%

Outrun radiation damage with electrons?

Egerton

2015

Adv Struct Chem Imag

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“…A temporal pulse characterization by ultrafast streaking [205][206][207][208]. The electron pulses are channeled through a narrow and rapidly changing electromagnetic field normal to their propagation direction.…”

Section: Alternative Approaches To Determine the Pulse Durationmentioning

confidence: 99%

Development of an Ultrafast Low-Energy Electron Diffraction Setup

Gulde

2015

Springer Theses

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“…The emittance required for single-shot imaging depends on the size of the object being imaged: larger object sizes or crystal periods require lower emittance to generate useful coherent diffraction patterns. Ultrafast single-shot electron diffraction has been achieved from large single crystal and polycrystalline samples using a variety of photocathode based sources [13][14][15][16][17] , but insufficient source brightness has prevented demonstration for micro or nanocrystals, or single molecules.…”

Section: Introductionmentioning

confidence: 99%

Single-shot electron diffraction using a cold atom electron source

Speirs

Putkunz

McCulloch

et al. 2015

J. Phys. B: At. Mol. Opt. Phys.

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Cold atom electron sources are a promising alternative to traditional photocathode sources for use in ultrafast electron diffraction due to greatly reduced electron temperature at creation, and the potential for a corresponding increase in brightness. Here we demonstrate single-shot, nanosecond electron diffraction from monocrystalline gold using cold electron bunches generated in a cold atom electron source. The diffraction patterns have sufficient signal to allow registration of multiple single-shot images, generating an averaged image with significantly higher signal-to-noise ratio than obtained with unregistered averaging. Reflection high-energy electron diffraction (RHEED) was also demonstrated, showing that cold atom electron sources may be useful in resolving nanosecond dynamics of nanometre scale near-surface structures.

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Note: Single-shot continuously time-resolved MeV ultrafast electron diffraction

Cited by 64 publications

References 17 publications

Outrun radiation damage with electrons?

Outrun radiation damage with electrons?

Development of an Ultrafast Low-Energy Electron Diffraction Setup

Single-shot electron diffraction using a cold atom electron source

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