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Title: Control of the Lasing Slice by Transverse Mismatch in an X-Ray Free-Electron Laser

Abstract

We demonstrated selective slice-dependent lasing by controlling the matching to the undulator of different slices within an electron bunch. The slice-dependent mismatch was realized through quadrupole wakefield generated in a corrugated structure. A deterministic procedure based on empirical beam transport and phase space information is used to match selected slices by turns to lase in the undulator while keeping all other slices from lasing, thus staying fresh. Measurements of time-resolved electron bunch energy loss by a transverse deflecting cavity confirmed the predicted behavior.

Authors:
 [1];  [2];  [1];  [1];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Peking Univ., Beijing (China). Inst. of Heavy Ion Physics, School of Physics
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1468726
Alternate Identifier(s):
OSTI ID: 1459436; OSTI ID: 1463371
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 6; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Chao, Yu-Chiu, Qin, Weilun, Ding, Yuantao, Lutman, Alberto A., and Maxwell, Timothy. Control of the Lasing Slice by Transverse Mismatch in an X-Ray Free-Electron Laser. United States: N. p., 2018. Web. doi:10.1103/physrevlett.121.064802.
Chao, Yu-Chiu, Qin, Weilun, Ding, Yuantao, Lutman, Alberto A., & Maxwell, Timothy. Control of the Lasing Slice by Transverse Mismatch in an X-Ray Free-Electron Laser. United States. doi:https://doi.org/10.1103/physrevlett.121.064802
Chao, Yu-Chiu, Qin, Weilun, Ding, Yuantao, Lutman, Alberto A., and Maxwell, Timothy. Wed . "Control of the Lasing Slice by Transverse Mismatch in an X-Ray Free-Electron Laser". United States. doi:https://doi.org/10.1103/physrevlett.121.064802. https://www.osti.gov/servlets/purl/1468726.
@article{osti_1468726,
title = {Control of the Lasing Slice by Transverse Mismatch in an X-Ray Free-Electron Laser},
author = {Chao, Yu-Chiu and Qin, Weilun and Ding, Yuantao and Lutman, Alberto A. and Maxwell, Timothy},
abstractNote = {We demonstrated selective slice-dependent lasing by controlling the matching to the undulator of different slices within an electron bunch. The slice-dependent mismatch was realized through quadrupole wakefield generated in a corrugated structure. A deterministic procedure based on empirical beam transport and phase space information is used to match selected slices by turns to lase in the undulator while keeping all other slices from lasing, thus staying fresh. Measurements of time-resolved electron bunch energy loss by a transverse deflecting cavity confirmed the predicted behavior.},
doi = {10.1103/physrevlett.121.064802},
journal = {Physical Review Letters},
number = 6,
volume = 121,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
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Citation Metrics:
Cited by: 2 works
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Figures / Tables:

Fig. 1 Fig. 1: FIG. 1. Schematic layout of the LCLS for matching-based slice-dependent lasing control. Section 1 is used to generate and manipulate head-vs-tail mismatch by controlling the transverse beam profile in the corrugated structure (the wakefield generating device). Section 2 is used to deterministically rematch selected temporal slices to themore » undulator for lasing.« less

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