Open AccessSubmillisecond X‐ray photon correlation spectroscopy from a pixel array detector with fast dual gating and no readout dead‐time
Author(s) -
Zhang Qingteng,
Dufresne Eric M.,
Grybos Pawel,
Kmon Piotr,
Maj Piotr,
Narayanan Suresh,
Deptuch Grzegorz W.,
Szczygiel Robert,
Sandy Alec
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516005166
Subject(s) - detector , physics , optics , pixel , frame rate , photon counting , photon , resolution (logic) , dead time , gating , spectroscopy , frame (networking) , image resolution , scattering , computer science , artificial intelligence , physiology , quantum mechanics , biology , telecommunications
Small‐angle scattering X‐ray photon correlation spectroscopy (XPCS) studies were performed using a novel photon‐counting pixel array detector with dual counters for each pixel. Each counter can be read out independently from the other to ensure there is no readout dead‐time between the neighboring frames. A maximum frame rate of 11.8 kHz was achieved. Results on test samples show good agreement with simple diffusion. The potential of extending the time resolution of XPCS beyond the limit set by the detector frame rate using dual counters is also discussed.