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Title: Pulse intensity characterization of the LCLS nanosecond double-bunch mode of operation

Journal Article · · Journal of Synchrotron Radiation (Online)
ORCiD logo [1];  [2];  [2];  [2];  [2];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Stanford Univ., CA (United States). Dept. of Physics
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)

The recent demonstration of the 'nanosecond double-bunch' operation mode,i.e.two X-ray pulses separated in time between 0.35 and hundreds of nanoseconds and by increments of 0.35 ns, offers new opportunities to investigate ultrafast dynamics in diverse systems of interest. However, in order to reach its full potential, this mode of operation requires the precise characterization of the intensity of each X-ray pulse within each pulse pair for any time separation. Here, a transmissive single-shot diagnostic that achieves this goal for time separations larger than 0.7 ns with a precision better than 5% is presented. Lastly, it also provides real-time monitoring feedback to help tune the accelerator parameters to deliver double pulse intensity distributions optimized for specific experimental goals.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1438814
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 3 Vol. 25; ISSN 1600-5775; ISSN JSYRES
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (9)

Coherence and pulse duration characterization of the PAL-XFEL in the hard X-ray regime journal March 2019
Universal link between the boson peak and transverse phonons in glass journal October 2008
Coherence and pulse duration characterization of the PAL-XFEL in the hard X-ray regime journal March 2019
Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay journal March 2020
Dynamics of soft nanoparticle suspensions at hard X-ray FEL sources below the radiation-damage threshold journal October 2018
Very high brightness and power LCLS-II hard X-ray pulses journal April 2019
First x-ray test of the Icarus nanosecond-gated camera
  • Hart, Philip A.; Carpenter, Andrew C.; Claus, Liam D.
  • X-Ray Free-Electron Lasers: Advances in Source Development and Instrumentation V https://doi.org/10.1117/12.2520974
conference May 2019
Dynamics of soft nanoparticle suspensions at hard X-ray FEL sources below the radiation damage threshold text January 2018
Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard split-and-delay text January 2020

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