Pushing x-ray photon correlation spectroscopy beyond the continuous frame rate limit.
Opt Express
; 24(1): 355-64, 2016 Jan 11.
Article
en En
| MEDLINE
| ID: mdl-26832265
ABSTRACT
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.
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