Coulomb interaction-induced jitter amplification in RF-compressed high-brightness electron source ultrafast electron diffraction

Qi, Yingpeng; Pei, Minjie; Qi, Dalong; Li, Jing; Yang, Yan; Jia, Tianqing; Zhang, Shian; Sun, Zhenrong

doi:10.1088/1367-2630/aa59ad

Cited by 5 publications

(1 citation statement)

References 48 publications

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“…The second scheme is to leave the space-charge broadening initially, and then compress the bunch duration all the way to sub-ps range right at its arrival at sample's location. [32][33][34] In this case, 10 5 to 10 6 electrons per pulse are achieved with subps longitudinal duration, or very few electrons are bunched for even shorter duration (fs scale). [35] In this paper, we will focus on the second scheme, which is applied for the UED station in SECUF.…”

Section: Advantage and Disadvantage In Using Electronsmentioning

confidence: 99%

Ultrafast electron diffraction

Wang¹,

Li²

2018

Chinese Phys. B

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Ultrafast electron diffraction (UED) technique has proven to be an innovative tool for providing new insights in lattice dynamics with unprecedented temporal and spatial sensitivities. In this article, we give a brief introduction of this technique using the proposed UED station in the Synergetic Extreme Condition User Facility (SECUF) as a prototype. We briefly discussed UED's functionality, working principle, design consideration, and main components. We also briefly reviewed several pioneer works with UED to study structure-function correlations in several research areas. With these efforts, we endeavor to raise the awareness of this tool among those researchers, who may not yet have realized the emerging opportunities offered by this technique.

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Section: Advantage and Disadvantage In Using Electronsmentioning

confidence: 99%

Ultrafast electron diffraction

Wang¹,

Li²

2018

Chinese Phys. B

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Photochemistry

Schalk¹,

Tapavicza

Burda³

et al. 2020

ACS in Focus

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Gigahertz streaking and compression of low-energy electron pulses

Epp,

Schröder,

Möller

et al. 2024

Structural Dynamics

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Although radio frequency (RF) technology is routinely employed for controlling high-energy pulses of electrons, corresponding technology has not been developed at beam energies below several kiloelectronvolts. In this work, we demonstrate transverse and longitudinal phase-space manipulation of low-energy electron pulses using RF fields. A millimeter-sized photoelectron gun is combined with synchronized streaking and compression cavities driven at frequencies of 0.5 and 2.5 GHz, respectively. The phase-controlled acceleration and deceleration of photoelectron pulses is characterized in the energy range of 50–100 eV. Deflection from a transient space-charge cloud at a metal grid is used to measure a fourfold compression of 80−eV electron pulses, from τ=34 to τ=8 ps pulse duration.

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Coulomb interaction-induced jitter amplification in RF-compressed high-brightness electron source ultrafast electron diffraction

Cited by 5 publications

References 48 publications

Ultrafast electron diffraction

Ultrafast electron diffraction

Photochemistry

Gigahertz streaking and compression of low-energy electron pulses

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