Re: [Ifeffit] More for dealing the LCF

2011-09-09 Thread Bruce Ravel
> 1. Constraining the sum of components fractions to one – > - when to apply? *If* your set of standards is complete and fully describes the sample and *if* all of your data are normalized accurately and *if* none of your data is effected by measurement uncertainty of any sort, then the sum of co

[Ifeffit] Fwd: Re: XAFS and feffit

2011-09-09 Thread Bruce Ravel
Hi everyone, This fellow clearly did not take my hint that he should ask his question on the Ifeffit mailing list, so I am taking the liberty of forwarding his questions along. As for his first question: http://cars9.uchicago.edu/ifeffit/FAQ/RunningFeff#crystal The second question is rather

[Ifeffit] XAFS of poly-metals contaminated soil samples

2011-09-09 Thread Xia Bing
Dear members of the mailing list: This year we have applied the synchrotron radiation and get the chance to Beijing Synchrotron Radiation Facility at beamline 1W1B-XAFS. It is the first time to use this equipment to measure our samples. We communicate with the beamline staff for some guideline an

Re: [Ifeffit] XAFS of poly-metals contaminated soil samples

2011-09-09 Thread Matthew Marcus
If you're using an energy-dispersive detector like a solid-state detector, then the Cu will not cause too much of a problem because only the Kb line will interfere, and that's smaller in intensity than the Zn Ka line and will have little EXAFS on it. As for Fe, you can get considerable reductio

Re: [Ifeffit] XAFS of poly-metals contaminated soil samples

2011-09-09 Thread Matt Newville
Hi Xia, --Matt Newville 630-252-0431 On Fri, Sep 9, 2011 at 12:23 PM, Xia Bing wrote: > > Dear members of the mailing list: > This year we have applied the synchrotron radiation and get the chance to > Beijing  Synchrotron Radiation Facility at beamline 1W1B-XAFS. It is the > first time to

Re: [Ifeffit] XAFS of poly-metals contaminated soil samples

2011-09-09 Thread Hana
Hi Xia - please see my comment below Xia Bing writes: > > Dear members of the mailing list: > This year we have applied the synchrotron radiation and get the chance to Beijing  Synchrotron Radiation Facility at beamline 1W1B-XAFS. It is the first time to use this equipment to measure our sampl