Demonstration of Feasibility of X-Ray Free Electron Laser Studies of Dynamics of Nanoparticles in Entangled Polymer Melts
Year: 2014
Type: article
Abstract: The recent advent of hard x-ray free electron lasers (XFELs) opens new areas of science due to their exceptional brightness, coherence, and time structure. In principle, such sources enable studies of dynamics of condensed matter systems over times ranging from femtoseconds to seconds. However, the studies of "slow" dynamics in polymeric materials still remain in question due to the characteristics of the XFEL beam and concerns about sample damage. Here we demonstrate the feasibility of measuring the relaxation dynamics of gold nanoparticles suspended in polymer melts using X-ray photon correlation spectroscopy (XPCS), while also monitoring eventual X-ray induced damage. In spite of inherently large pulse-to-pulse intensity and position variations of the XFEL beam, measurements can be realized at slow time scales. The X-ray induced damage and heating are less than initially expected for soft matter materials.
Source: Scientific Reports
DOI: 10.1038/srep06017
Authors: Jerome Carnis, Wonsuk Cha, James Wingert, Jinback Kang, Zhang Jiang, Sanghoon Song, Marcin Sikorski, Aymeric Robert, Christian Gutt, San-Wen Chen, Yeling Dai, Yicong Ma, Hongyu Guo, Laurence B. Lurio, Oleg Shpyrko, Suresh Narayanan, Mengmeng Cui, Irem Kosif, Todd Emrick, Thomas P. Russell, Hae Cheol Lee, Chung-Jong Yu, Gerhard Grübel, Sunil K. Sinha, Hyunjung Kim
Institutions: Sogang University, University of California San Diego, Argonne National Laboratory, Advanced Photon Source, SLAC National Accelerator Laboratory, Linac Coherent Light Source, University of Siegen, Deutsches Elektronen-Synchrotron DESY, Hamburg Centre for Ultrafast Imaging, Northern Illinois University, University of Massachusetts Amherst, Pohang Accelerator Laboratory
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: G1480955277, G222768804, DYNAMICAL SELF-ASSEMBLY: STRUCTURE DYNAMICS FUNCTION RELATIONS IN HETEROGENEOUS PHOSPHOLIPID ..., G2677224781, DYNAMICAL SELF-ASSEMBLY: STRUCTURE DYNAMICS FUNCTION RELATIONS IN HETEROGENEOUS PHOSPHOLIPID MEMBRANES, NEW; NANOSCALE X-RAY IMAGING AND DYNAMICS OF ELECTRONIC AND MAGNETIC MATERIALS; PI-OLEG SHPYRKO, INTERFACIAL ASSEMBLY & CHEMICAL ACTIVITY OF NANOPARTICLES, G5648016710, NEW; NANOSCALE X-RAY IMAGING AND DYNAMICS OF ELECTRONIC AND MAGNETIC MATERIALS; PI-OLEG SHPYRKO, DYNAMICAL SELF-ASSEMBLY: STRUCTURE DYNAMICS FUNCTION RELATIONS IN HETEROGENEOUS PHOSPHOLIPID MEMBRANES, G716838824
OpenAlex ID: W2064892119