Hard X-Ray Photon Correlation Spectroscopy Methods for Materials Studies
نویسندگان
چکیده
منابع مشابه
Indirectly illuminated X-ray area detector for X-ray photon correlation spectroscopy.
An indirectly illuminated X-ray area detector is employed for X-ray photon correlation spectroscopy (XPCS). The detector consists of a phosphor screen, an image intensifier (microchannel plate), a coupling lens and either a CCD or CMOS image sensor. By changing the gain of the image intensifier, both photon-counting and integrating measurements can be performed. Speckle patterns with a high sig...
متن کاملDevelopment of a hard X-ray delay line for X-ray photon correlation spectroscopy and jitter-free pump–probe experiments at X-ray free-electron laser sources
A hard X-ray delay line capable of splitting and delaying single X-ray pulses has been developed with the aim of performing X-ray photon correlation spectroscopy (XPCS) and X-ray pump-probe experiments at hard X-ray free-electron laser sources. The performance of the device was tested with 8.39 keV synchrotron radiation. Time delays up to 2.95 ns have been demonstrated. The feasibility of the d...
متن کاملStudies of atomic scale diffusion by X-ray photon correlation spectroscopy
Although Quasielastic Neutron Scattering (QNS) has proven successful in investigating diffusive dynamics at the atomic level in solid state physics, the limits for the diffusion coefficient are relatively low. Therefore QNS is in general limited to measurements in the vicinity of the melting transition. Also, because of the specific scattering cross section of neutrons, it favors selected atoms...
متن کاملMulti-speckle X-ray photon correlation spectroscopy in the ultra-small-angle X-ray scattering range
Multi-speckle X-ray photon correlation spectroscopy (XPCS) measurements in the ultra-small-angle range are performed using a long pinhole collimation instrument in combination with two-dimensional photon-counting and high-sensitivity imaging detectors. The feasibility of the presented setup to measure dynamics on different time and length scales pertinent to colloidal systems is shown. This set...
متن کاملOn the use of two-time correlation functions for X-ray photon correlation spectroscopy data analysis
Multi-time correlation functions are especially well suited to study non-equilibrium processes. In particular, two-time correlation functions are widely used in X-ray photon correlation experiments on systems out of equilibrium. One-time correlations are often extracted from two-time correlation functions at different sample ages. However, this way of analysing two-time correlation functions is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annual Review of Materials Research
سال: 2018
ISSN: 1531-7331,1545-4118
DOI: 10.1146/annurev-matsci-070317-124334