skip to main content

SciTech ConnectSciTech Connect

This content will become publicly available on August 8, 2017

Title: Measurement of high-dynamic range x-ray Thomson scattering spectra for the characterization of nano-plasmas at LCLS

Atomic clusters can serve as ideal model systems for exploring ultrafast (~100 fs) laser-driven ionization dynamics of dense matter on the nanometer scale. Resonant absorption of optical laser pulses enables heating to temperatures on the order of 1 keV at near solid density conditions. To date, direct probing of transient states of such nano plasmas was limited to coherent x-ray imaging. Here we present the first measurement of spectrally-resolved incoherent x-ray scattering from clusters, enabling measurements of transient temperature, densities and ionization. Single shot x-ray Thomson scatterings signals were recorded at 120 Hz using a crystal spectrometer in combination with a single-photon counting and energy-dispersive pnCCD. A precise pump laser collimation scheme enabled recording near background-free scattering spectra from Ar clusters with an unprecedented dynamic range of more than 3 orders of magnitude. As a result, such measurements are important for understanding collective effects in laser-matter interactions on femtosecond timescales, opening new routes for the development of schemes for their ultrafast control.
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ; ORCiD logo [7] ;  [8] ;  [6] ;  [6] ;  [6] ;  [6] ;  [3] ;  [9] ;  [6] ;  [10] ;  [11] ;  [6] ;  [6] ;  [3] more »;  [11] ;  [11] ;  [6] ;  [12] ;  [11] ;  [3] « less
  1. Univ. of Michigan, Ann Arbor, MI (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Technische Univ., Berlin (Germany)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States); Argonne National Lab. (ANL), Lemont, IL (United States)
  5. California Lutheran Univ., Thousand Oaks, CA (United States)
  6. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  7. Univ. of Michigan, Ann Arbor, MI (United States)
  8. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., Stanford, CA (United States)
  9. Univ. of California, Berkeley, CA (United States)
  10. Franklin W. Olin College of Engineering, Needham, MA (United States)
  11. Univ. Rostock, Rostock (Germany)
  12. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
OSTI Identifier:
1257740
Report Number(s):
SLAC-PUB-16558
Journal ID: ISSN 0034-6748; RSINAK
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Conference: Contributed toHigh-temperature plasma diagnostics, Madison, WI (United States), 5-9 Jun 2016; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
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 Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; INST; XFEL