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Titolo:
Area detector based photon correlation in the regime of short data batches: Data reduction for dynamic x-ray scattering
Autore:
Lumma, D; Lurio, LB; Mochrie, SGJ; Sutton, M;
Indirizzi:
MIT, Dept Phys, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Dept Phys, Cambridge, MA 02139 USA MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139 T, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada McGill Univ MontrealPQ Canada H3A 2T8 Phys, Montreal, PQ H3A 2T8, Canada
Titolo Testata:
REVIEW OF SCIENTIFIC INSTRUMENTS
fascicolo: 9, volume: 71, anno: 2000,
pagine: 3274 - 3289
SICI:
0034-6748(200009)71:9<3274:ADBPCI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTENSITY FLUCTUATION SPECTROSCOPY; COLLOIDAL SUSPENSIONS; LIGHT-SCATTERING; BROWNIAN-MOTION; SPECKLE; CAMERA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Lumma, D MIT, Dept Phys, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139 T, Dept Phys, Cambridge, MA 02139 USA
Citazione:
D. Lumma et al., "Area detector based photon correlation in the regime of short data batches: Data reduction for dynamic x-ray scattering", REV SCI INS, 71(9), 2000, pp. 3274-3289

Abstract

A method for reducing time sequences of raw scattering images to intensitytime-autocorrelation functions is presented. The procedure is based on theuse of a charge coupled device (CCD) area detector, and optimized for operating in the regime of short data batches. Its application to x-ray photon correlation spectroscopy (XPCS) measurements is described in detail. Using a slow-scan CCD, we explain how to achieve data acquisition on a 30 ms or faster time scale, while simultaneously acquiring data from many coherence areas in parallel. The statistical uncertainties of the acquired XPCS data are quantified experimentally, and compared to the theoretically expected noise levels of the correlation functions. (C) 2000 American Institute of Physics. [S0034-6748(00)03509-7].

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Documento generato il 25/09/20 alle ore 22:25:08