On Fri, Apr 17, 2009 at 8:08 AM, Cammelli Sebastiano
wrote:
>
> In the case of a linear combination fitting on the k space performed by
> ATHENA, the <∆chi> needs a correction. Is it correct to write:
>
> R_factor ≡ < ∆chi(k space))> = √[ ∑ (chi_C(ki) – chi_E(ki))2 / ∑(
> chi_E(ki))2] ?
>
> Where
Dear iffefit user,
I found on a paper (E.A. Stern et al. /Physica B 208&209 (1995) 117 120) the
definition of R quality factor as:
R_factor ≡ < ∆chi(R space))> = √[ ∑ |chi_C(Ri) – chi_E(Ri)|2 / ∑( chi_E(Ri))2]
> formula 3
Where Chi(Ri) is a complex function (imaginary and real par
