Hi Sebastian,
Is I0 the same for all measurements? Mu being about the same jump just
means that about
the same amount of absorber is in the beam. It doesn't rule out an
instrumentation issue.
Start by checking I0, then It. Identify where the noise is manifesting.
-R.
On 2024-04-29 5:17 a.m., Sebastian Kunze wrote:
Greetings, I recently did in-situ QEXAFS at Ag K-edge, expecting to
see structure loss starting from crystalline (metallic) state. While
we can see that, in addition we also see an increase in noise(?) in
the xanes region (compare start and
ZjQcmQRYFpfptBannerStart
This Message Is From an External Sender
This message came from outside your organization.
ZjQcmQRYFpfptBannerEnd
Greetings,
I recently did in-situ QEXAFS at Ag K-edge, expecting to see structure
loss starting from crystalline (metallic) state. While we can see
that, in addition we also see an increase in noise(?) in the xanes
region (compare start and end in the attached image). I am confused by
this because the amount of material did not change, so I did not
expect a difference in the signal/noise ratio at the absorption edge.
And it is reproducible across several samples, so not instrument
related. Could anyone point me in the right direction as to what I am
missing?
Thank you!
Best,
Sebastian Kunze
_______________________________________________
Ifeffit mailing list
Ifeffit@millenia.cars.aps.anl.gov
https://urldefense.us/v3/__http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit__;!!G_uCfscf7eWS!fWsYAatgn9ghAnT9beKT8yAAdkY4UjnsDGG080jsUw76VDZAoZDTiDI_qaSCUuY_fLrv2AkFwkuGCjPlklxylreS7W6N1PJeOOg1qZM$
Unsubscribe:https://urldefense.us/v3/__http://millenia.cars.aps.anl.gov/mailman/options/ifeffit__;!!G_uCfscf7eWS!fWsYAatgn9ghAnT9beKT8yAAdkY4UjnsDGG080jsUw76VDZAoZDTiDI_qaSCUuY_fLrv2AkFwkuGCjPlklxylreS7W6N1PJea47y2ig$
_______________________________________________
Ifeffit mailing list
Ifeffit@millenia.cars.aps.anl.gov
http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit
