Re: [Ifeffit] Effect of gradual thickness variation in beam

2016-01-27 Thread Anatoly I Frenkel
Hi Jason, You are saying that the outer diameter is 1000 um and that the center of the beam will pass through 1000 micron of the sample... How possible? The tube is not infinitely thin... The sensitivity of transmission XAS to the non-uniformity of the sample will be different at different

[Ifeffit] Effect of gradual thickness variation in beam

2016-01-27 Thread Jason Gaudet
Sample cell Hi all, I'm planning on some transmission-mode XAS with smaller than usual sample tubes. I'm realizing I might be in danger of creating excessive non-uniformity in my samples by having the beam size on the same order of magnitude as the sample tube radius. For example, let's say I w

Re: [Ifeffit] FW: Data summation - missing groups

2016-01-27 Thread Bruce Ravel
On 01/27/2016 11:24 AM, Godfrey, Ian wrote: Having said that, I've downloaded and applied the patches from github and have found a slightly annoying behaviour. Everytime I use the the buttons under the plotlist (both the orange ones and the purple ones) the component lists reset. i.e. I set up a

Re: [Ifeffit] FW: Data summation - missing groups

2016-01-27 Thread Godfrey, Ian
Having said that, I've downloaded and applied the patches from github and have found a slightly annoying behaviour. Everytime I use the the buttons under the plotlist (both the orange ones and the purple ones) the component lists reset. i.e. I set up a sum with component 1 as, say, HAuCl4 standa

Re: [Ifeffit] FW: Data summation - missing groups

2016-01-27 Thread Bruce Ravel
On 01/27/2016 11:24 AM, Godfrey, Ian wrote: Having said that, I've downloaded and applied the patches from github and have found a slightly annoying behaviour. Everytime I use the the buttons under the plotlist (both the orange ones and the purple ones) the component lists reset. i.e. I set up a

Re: [Ifeffit] Data summation - missing groups

2016-01-27 Thread Bruce Ravel
On 01/27/2016 06:21 AM, Godfrey, Ian wrote: On a related note, I’m not sure I fully understand how the data summation is different from the merge? Clearly data summation allows you more control (arbitrary weighting of groups etc.) and is intended for XANES analysis, but is it a fundamentally diff

Re: [Ifeffit] FW: Data summation - missing groups

2016-01-27 Thread Bruce Ravel
On 01/27/2016 06:33 AM, Godfrey, Ian wrote: Sorry, I’ve just seen that this has already been reported. Indeed: http://millenia.cars.aps.anl.gov/pipermail/ifeffit/2015-November/008320.html This problem will be fixed whenever the next version of Demeter comes out. I apologize for the inconven

[Ifeffit] FW: Data summation - missing groups

2016-01-27 Thread Godfrey, Ian
Sorry, I've just seen that this has already been reported. Ian From: Godfrey, Ian Sent: 27 January 2016 11:21 To: 'XAFS Analysis using Ifeffit' Subject: Data summation - missing groups Dear All, When using the data summation tool in Athena (0.9.24 x64 on Win10 Pro) the first group in the grou

[Ifeffit] Data summation - missing groups

2016-01-27 Thread Godfrey, Ian
Dear All, When using the data summation tool in Athena (0.9.24 x64 on Win10 Pro) the first group in the group list seems to be missing from the dropdown showing the potential components of a summation (see attached screenshot). To reproduce: 1) Open attached project file and import with "selec