Control of electron beam polarization in the bubble regime of laser-wakefield acceleration

Fan, H. C.; Liu, X. Y.; Li, X. F.; Qu, J. F.; Yu, Q.; Kong, Q.; Weng, S. M.; Chen, M.; Büscher, M.; Gibbon, P.; Kawata, S.; Sheng, Z. M.

doi:10.48550/arxiv.2201.02969

“…Detailed theoretical studies (like the ones in Ref. [46]) reveal that intense highly-polarized electron beams can be accelerated to multi-MeV energies via the "standard" bubble mechanism with 100-TW class lasers. It has been shown that the final spin direction strongly depends on the self-injection process (see Fig.…”

Section: Polarized Electronsmentioning

confidence: 98%

Snowmass Whitepaper AF6: Plasma-Based Particle Sources

Fuchs¹,

Shadwick²,

Vafaei-Najafabadi³

et al. 2022

Preprint

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“…The third pulse then drives a plasma wave and injected electrons are accelerated. Suitable regimes to maintain the beam polarization during the acceleration have been found in simulations [4,8].…”

Section: Polarized Beams From a Pre-polarized Gas Jet Targetmentioning

confidence: 99%

Polarized Electron Beams from Laser Plasma Acceleration and Their Polarimetry

Popp

¹

,

Bohlen

²

,

Felix

³

et al. 2022

Proceedings of the 24th International Spin Symposium (SPIN2021)

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In recent years, Laser Plasma Acceleration (LPA) has become a promising alternative to conventional RF accelerators. However, so far, it has only been theoretically shown that generating polarized LPA beams is possible. The LEAP (Laser Electron Acceleration with Polarization) project at DESY aims to demonstrate this experimentally for the first time, using a pre-polarized plasma target. The electron polarization will be measured with photon transmission polarimetry, which makes use of the production of circularly polarized bremsstrahlung during the passage of the electron beams through a suitable converter target. The photon polarization is then measured with the aid of transmission asymmetry arising from reversing the magnetization direction of an iron absorber. In this contribution an overview of the LEAP project is presented, detailing the generation of the polarized electron beams along with the design and simulation studies of the polarimeter.

show abstract

Polarized Electron Beams from Laser Plasma Acceleration and Their Polarimetry

Popp¹,

Bohlen²,

Felix³

et al. 2022

Preprint

0

View full text Add to dashboard Cite

In recent years, Laser Plasma Acceleration (LPA) has become a promising alternative to conventional RF accelerators. However, so far, it has only been theoretically shown that generating polarized LPA beams is possible. The LEAP (Laser Electron Acceleration with Polarization) project at DESY aims to demonstrate this experimentally for the first time, using a pre-polarized plasma target. The electron polarization will be measured with photon transmission polarimetry, which makes use of the production of circularly polarized bremsstrahlung during the passage of the electron beams through a suitable converter target. The photon polarization is then measured with the aid of transmission asymmetry arising from reversing the magnetization direction of an iron absorber. In this contribution an overview of the LEAP project is presented, detailing the generation of the polarized electron beams along with the design and simulation studies of the polarimeter.

show abstract

Control of electron beam polarization in the bubble regime of laser-wakefield acceleration

Cited by 3 publications

References 48 publications

Snowmass Whitepaper AF6: Plasma-Based Particle Sources

Snowmass Whitepaper AF6: Plasma-Based Particle Sources

Polarized Electron Beams from Laser Plasma Acceleration and Their Polarimetry

Polarized Electron Beams from Laser Plasma Acceleration and Their Polarimetry

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