| Title |
Generating High Repetition Rate X-ray Attosecond Pulses in SAPS |
| Authors |
- W. Liu, X. Liu, Y. Zhao
IHEP CSNS, Guangdong Province, People’s Republic of China
- Y. Jiao, X. Li, S. Wang
IHEP, Beijing, People’s Republic of China
|
| Abstract |
Attosecond, which refers to 10⁻¹⁸ seconds, is the timescale of electron motion within an atom. Accurate observation of electron motion helps deepen the understanding of microscopic quantum processes such as charge transfer in molecules, wave packet dynamics, and charge transfer in organic photovoltaic materials. To meet the needs of relevant research, the South Advanced Photon Source (SAPS), currently in the design phase, is considering the construction of an attosecond beamline. This paper presents relevant research on achieving high-repetition-rate coherent attosecond pulses on the fourth-generation storage ring at SAPS. Realizing attosecond pulses in a storage ring requires femtosecond to sub-femtosecond-level longitudinal modulation of the beam, and the modulation scheme needs to consider multiple factors to avoid a significant impact on other users. The study shows that with high-power, few-cycle lasers, and advanced beam modulation techniques, the photon flux of attosecond pulses can be significantly enhanced with a minimal impact on the brightness of synchrotron radiation. Adopting high-repetition-rate lasers and precise time delay control, the repetition rate of attosecond pulses at SAPS can reach the megahertz level. Currently, the design wavelength range for attosecond pulses covers the water window (2.3-4.4 nm), which is "transparent" to water but strongly absorbed by elements constituting living organisms. This wavelength range has significant application value in fields such as biology and chemistry.
|
| Paper |
download MO3B4.PDF [0.396 MB / 4 pages] |
| Slides |
download MO3B4_TALK.PDF [3.400 MB] |
| Cite |
download ※ BibTeX
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※ EndNote |
| Conference |
FLS2023 |
| Series |
ICFA Advanced Beam Dynamics Workshop (67th) |
| Location |
Luzern, Switzerland |
| Date |
27 August-01 September 2023 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Hans-Heinrich Braun (PSI, Villigen, Switzerland); Jan Chrin (PSI, Villigen, Switzerland); Romain Ganter (PSI, Villigen, Switzerland); Nicole Hiller (PSI, Villigen, Switzerland); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-224-0 |
| Online ISSN |
2673-7035 |
| Received |
23 August 2023 |
| Revised |
24 August 2023 |
| Accepted |
31 August 2023 |
| Issued |
02 December 2023 |
| DOI |
doi:10.18429/JACoW-FLS2023-MO3B4 |
| Pages |
22-25 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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