Open AccessPushing x-ray photon correlation spectroscopy beyond the continuous frame rate limit
Author(s) -
Eric M. Đufresne,
Suresh Narayanan,
Alec Sandy,
David Kline,
Qingteng Zhang,
Eric C. Landahl,
Stephen K. Ross
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.000355
Subject(s) - microsecond , optics , physics , spectroscopy , frame rate , photon , millisecond , detector , photon counting , temporal resolution , resolution (logic) , synchrotron , scattering , computer science , quantum mechanics , astronomy , artificial intelligence
We demonstrate delayed-frame X-ray Photon Correlation Spectroscopy with 120 microsecond time resolution, limited only by sample scattering rates, with a prototype Pixel-array detector capable of taking two image frames separated by 153 ns or less. Although the overall frame rate is currently limited to about 4 frame pairs per second, we easily measured millisecond correlation functions. This technology, coupled to the use of brighter synchrotrons such as Petra III or the NSLS-II should enable X-ray Photon Correlation Spectroscopy on microsecond time scales on a wider variety of materials.