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guilgautier avatar guilgautier commented on June 28, 2024

The modes "Y" and "T" corresponds to different valid transformation matrices H involved in the computation of the Hankel transform as presented by Baddour and Chouinard https://doi.org/10.1364/JOSAA.32.000611

structure-factor/src/structure_factor/transforms.py

Lines 215 to 229 in a6392e5

if mode == "Y":
H = bessel1(n, np.outer(jk / jN, jk)) / np.square(bessel1(n + 1, jk))
H *= 2 / jN
ht_k = H.dot(function(r))
ht_k *= r_max ** 2 / jN
return k, ht_k
elif mode == "T":
H = bessel1(n, np.outer(jk / jN, jk))
Jn1 = bessel1(n + 1, jk)
H /= np.outer(Jn1, Jn1)
H *= 2 / jN
ht_k = H.dot(function(r) / Jn1)
ht_k *= r_max ** 2 / jN
return k, ht_k

from structure-factor.

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