jaxrts.free_bound.FreeBoundFlippedSetup.frc_exponent

FreeBoundFlippedSetup.frc_exponent: float

Exponent of the frequency redistribution correction in the differential cross-section.

\[\left(\frac{\omega_\text{out}}{\omega_\text{in}}\right)^\nu S(\omega, k)\]

See [Crowley and Gregori, 2013].

Defaults to 0.

• If 0, the methods probe() and evaluate() will return dynamic structure factors (this is the default behavior of jaxrts).

• However, when comparing to experimental data in which the signal is proportional to the number of photons on the detector, the apt comparison is to the differential cross-section, which is proportional to \(\frac{\omega_\text{out}}{\omega_\text{in}} S(\omega, k)\) i.e., \(\nu = 1\).

• If the detector-signal is proportional to the deposited energy instead (as is should be the case for CCD detectors if no further processing occurs), an additional scaling with energy is introduced and frc_exponent should be set to 2.