Re: [Ifeffit] Multiple scattering path parameters

2016-07-29 Thread Bruce Ravel
On 07/28/2016 05:52 PM, Neil M Schweitzer wrote: Are there standard ways of relating the parameters (deltaR and sigma^2) of multiple scattering paths to the parameters of the single scattering paths based on the type of MS path? For example, would deltaR_MS = deltaR_SS*2 if the MS was a “forward

Re: [Ifeffit] Multiple scattering path parameters

2016-07-28 Thread Scott Calvin
Hi Neil, For some kinds of paths, the answer is unambiguously “yes.” For example, consider the path A -> B -> A -> B -> A, where A is the absorbing atom and B is another atom; i.e., the path has four legs and 180 degree angles between each leg. In that case deltaR_MS = deltaR_SS, and sigma2_MS

[Ifeffit] Multiple scattering path parameters

2016-07-28 Thread Neil M Schweitzer
Are there standard ways of relating the parameters (deltaR and sigma^2) of multiple scattering paths to the parameters of the single scattering paths based on the type of MS path? For example, would deltaR_MS = deltaR_SS*2 if the MS was a "forward through" geometry? What about other geometries