scholarly journals Depolarized Photon Correlation Spectroscopy and Shear Stress Relaxation Modulus of Polystyrene

1994 ◽  
Vol 26 (4) ◽  
pp. 431-438 ◽  
Author(s):  
H L Lin ◽  
Y S Chen ◽  
T L Yu
Keyword(s):  
Shear Stress ◽  
Stress Relaxation ◽  
Photon Correlation Spectroscopy ◽  
Relaxation Modulus ◽  
Correlation Spectroscopy ◽  
Photon Correlation ◽  
Shear Stress Relaxation

scholarly journals Numerical determination of shear stress relaxation modulus of polymer glasses

2017 ◽  
Vol 40 (4) ◽  
Author(s):  
I. Kriuchevskyi ◽  
J. P. Wittmer ◽  
O. Benzerara ◽  
H. Meyer ◽  
J. Baschnagel
Keyword(s):  
Shear Stress ◽  
Stress Relaxation ◽  
Relaxation Modulus ◽  
Numerical Determination ◽  
Polymer Glasses ◽  
Shear Stress Relaxation

scholarly journals From Femtoseconds to Hours–Measuring Dynamics over 18 Orders of Magnitude with Coherent X-rays

2021 ◽  
Vol 11 (13) ◽  
pp. 6179
Author(s):  
Felix Lehmkühler ◽  
Wojciech Roseker ◽  
Gerhard Grübel
Keyword(s):  
Time Scales ◽  
Free Electron Laser ◽  
Photon Correlation Spectroscopy ◽  
Signal To Noise Ratio ◽  
Coherent Scattering ◽  
Correlation Spectroscopy ◽  
X Rays ◽  
Photon Correlation ◽  
X Ray ◽  
Scattering Technique

X-ray photon correlation spectroscopy (XPCS) enables the study of sample dynamics between micrometer and atomic length scales. As a coherent scattering technique, it benefits from the increased brilliance of the next-generation synchrotron radiation and Free-Electron Laser (FEL) sources. In this article, we will introduce the XPCS concepts and review the latest developments of XPCS with special attention on the extension of accessible time scales to sub-μs and the application of XPCS at FELs. Furthermore, we will discuss future opportunities of XPCS and the related technique X-ray speckle visibility spectroscopy (XSVS) at new X-ray sources. Due to its particular signal-to-noise ratio, the time scales accessible by XPCS scale with the square of the coherent flux, allowing to dramatically extend its applications. This will soon enable studies over more than 18 orders of magnitude in time by XPCS and XSVS.

scholarly journals Grain Growth and Coarsening Dynamics in a Compositionally Asymmetric Block Copolymer Revealed by X-ray Photon Correlation Spectroscopy

2020 ◽  
Vol 53 (19) ◽  
pp. 8233-8243
Author(s):  
Ronald M. Lewis ◽  
Grayson L. Jackson ◽  
Michael J. Maher ◽  
Kyungtae Kim ◽  
Suresh Narayanan ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Grain Growth ◽  
Photon Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Photon Correlation ◽  
X Ray ◽  
Coarsening Dynamics
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