Dynamic Temperature and Velocity Measurements Using Neutron Resonance Spectroscopy

DYE JET VELOCITY DISTRIBUTION MEASUREMENTS USING PHOTOTHERMAL DEFLECTION SPECTROSCOPY

We demonstrate that photothermal deflection spectroscopy can be used to measure velocity distributions in dye jets. Such measurements are useful in determining the quality of flow in dye jets, The quality of jets is very important for a stable and naanow linewidth operation of dye lasers

ابررساناهای دمای بالا- با دید نوترونها

  Neutron scattering is proved to be a vital probe in unveiling the magnetic properties of high temperature superconductors (HTSC). Detailed information about the energy and momentum dependence of the magnetic dynamics of HTSC have been obtained directly by this technique. Over the past decade by improving the crystal growth methods, large and high quality single crystals of HTSC, which are ess...

Chain and local dynamics of polyisoprene as probed by experiments and computer simulations

The dynamics of designed short polyisoprene ~PI! chains in the melt is investigated on a wide temperature window using dielectric relaxation spectroscopy and pulsed field gradient nuclear magnetic resonance ~NMR!. At high temperatures, molecular dynamics ~MD! simulations performed using two different models ~an explicit atom model and a united atom one! capture very well the dynamic properties ...

Experimental setup for simultaneous measurements of neutron diffraction and dielectric spectroscopy during crystallization of liquids

The Possibility of Flux Flow Spectroscopy.

In this Letter we examine the feasibility of performing spectroscopic measurements of the excitations reflected as a resonance in the dynamic susceptibility xs $ q, vd using flux flow devices. These devices can be fabricated from high temperature superconductors and used to probe the properties of another material (the specimen) placed in close proximity. A broad range of wave vector, $ q, and ...