paramagpy.metal.Metal.fast_ccr

Metal.fast_ccr(posarray, gammaarray, dstarray)[source]

Vectorised version of paramagpy.metal.Metal.ccr()

This is generally used for speed in fitting DDxDSA data

If the metal has an anisotropic magnetic susceptibility, this is taken into account.

Parameters

  • posarray (array with shape (n,3)) – array of positions in meters

  • gammaarray (array with shape (n,3)) – array of gyromagnetic ratios of the spins

  • dstarray (array with shape (n,3,3)) – array of nuclear dipole shift tensors arising from the coupling partners

Returns

rates – The R2 differential line broadening rates in /s

Return type

array with shape (n,1)