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Title: Generation and structure of extremely large clusters in pulsed jets

Extremely large xenon clusters with sizes exceeding the predictions of the Hagena scaling law by several orders of magnitude are shown to be produced in pulsed gas jets. The cluster sizes are determined using single-shot single-particle imaging experiments with short-wavelength light pulses from the free-electron laser in Hamburg (FLASH). Scanning the time delay between the pulsed cluster source and the intense femtosecond x-ray pulses first shows a main plateau with size distributions in line with the scaling laws, which is followed by an after-pulse of giant clusters. For the extremely large clusters with radii of several hundred nanometers the x-ray scattering patterns indicate a grainy substructure of the particles, suggesting that they grow by cluster coagulation.
Authors:
; ; ; ; ; ; ;  [1] ; ;  [1] ;  [2] ;  [3] ;  [4] ;  [2]
  1. IOAP, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin (Germany)
  2. (United States)
  3. FLASH, DESY, Notkestraße 85, 22603 Hamburg (Germany)
  4. Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025 (United States)
Publication Date:
OSTI Identifier:
22419936
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 141; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; FORECASTING; FREE ELECTRON LASERS; PARTICLES; PULSES; SCALING LAWS; WAVELENGTHS; X RADIATION; XENON; X-RAY DIFFRACTION