Speaker
Description
The ongoing Plasma-driven Attosecond X-ray source experiment (PAX) at FACET-II aims to produce coherent soft X-ray pulses of attosecond duration using a plasma wakefield accelerator [1]. These X-ray pulses can be used to study chemical processes where attosecond-scale electron motion is important. For this first stage of the experiment[KS1.1], PAX plans to demonstrate that <100 nm bunch length electron beams can be generated using the 10 GeV, 20 um duration beam accelerated in the FACET-II linac and using the plasma cell to give it a percent-per-micron chirp. The strongly chirped beam can then be compressed in a weak chicane to sub-100nm length, producing coherent synchrotron radiation [KS2.1]in the final chicane magnet at wavelengths as low as 10s of nm. In this contribution we describe the results of recent experiments aiming to produce these ultra-compressed bunches and generate this single-cycle radiation, as well as the completion of the experimental setup of the PAX.
[1] C. Emma, X.Xu et al APL Photonics 6, 076107 (2021)
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