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Introduction

This tutorial aims to show typical workflows. It is not thought to be thoughtlessly copied but rather to show how some of the commands in Frida-1 can be used. Hopefully, one feels eager to further explore this powerful program…

Read Data, subtract a background, &c.

Some Basic Relations in Neutron Scattering

That is not an extensive document about all the possible relationships in neutron scattering, the relationships are written here, as the users need them…

• From meV to frequency: 1meV=240GHz
• Resolution function with = maximum accesible time τ(ps)=0.658/Res(meV)
• Wavelength of Thermal Neutrons: 1.8Å
• Bose Factor 1/(exp(h·f/kBT)-1). If h·f=E(meV), then the Boltzmann constant kB = 0.08617373 meV/K
• If you get ω from the quasielastic line, plotted as a function of Q2, the slope is the diffusion coeficient in meV·Å2. To get it in 10-4 cm2/s, multiply it by 1.519
• To calculate the susceptibility from s(q,w): chi''=s(q,w)*hw/(KbT)