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Title: Two mirror X-ray pulse split and delay instrument for femtosecond time resolved investigations at the LCLS free electron laser facility

We built a two-mirror based X-ray split and delay (XRSD) device for soft X-rays at the Linac Coherent Light Source free electron laser facility. The instrument is based on an edge-polished mirror design covering an energy range of 250 eV-1800 eV and producing a delay between the two split pulses variable up to 400 femtoseconds with a sub-100 attosecond resolution. We present experimental and simulation results regarding molecular dissociation dynamics in CH3I and CO probed by the XRSD device. In conclusion, we observed ion kinetic energy and branching ratio dependence on the delay times which were reliably produced by the XRSD instrument.
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [5] ;  [5] ;  [1] ;  [5] ;  [6] ;  [5] ;  [5]
  1. Univ. of Connecticut, Storrs, CT (United States). Physics Dept.
  2. Univ. of Texas at Austin, Austin TX (United States). Center for High Energy Density Science
  3. Western Michigan Univ., Kalamazoo, MI (United States). Physics Dept.
  4. Univ. of Turku, Turku (Finland). Dept. of Physics and Astronomy
  5. SLAC National Laboratory, Menlo Park, CA (United States). LCLS
  6. SLAC National Laboratory, Menlo Park, CA (United States). PULSE Institute
Publication Date:
OSTI Identifier:
Grant/Contract Number:
SC0002004; SC0012376; NA0002008; AC02-76SF00515
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 24; Journal Issue: 11; Journal ID: ISSN 1094-4087
Optical Society of America (OSA)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; extreme-ultraviolet; ionization; operation; coherent; charge