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Questions related from Charles Ewing
Considering ideal XRD output for Dolomite and Calcite, there is an XRD peak at approximately 2.93 degrees 2-theta to the left (low angle) of each primary line (peak) when the primary line is very...
09 March 2021 769 3 View
What I think I need to know is: 1) What is the current accepted shape of the Milky Way galaxy, and its sub-parts, such as core, halo, etc? Some documentation shows a sphere for dark halo, but...
31 August 2019 7,817 5 View
When scanning Dolomite/Gypsum samples with the Bruker Tracer IV-SD, what element could cause very high enhancement in Rhodium, precisely at 2.70 keV? The clear center of our peak is at that value,...
26 September 2017 8,664 11 View
The sample shows definite Mg, Sr, S, Cl, Rh (from the tool), Ar, K, Ca, Fe, and what appears to be Yb at 7.4kev. Scanning with no filter, Helium flushing, 15kV, 35microA. Raw photon counts seem...
14 May 2017 3,589 8 View
See project log for details so far. We're trying to reduce surface chlorides so that Rh indices can be easily inspected without adjacent interference. I've read some silly things, like using warm...
02 April 2017 4,955 2 View
While sampling various materials, I've ended up with a somewhat electroplated appearance in my plastic ED-XRF powder sample dish. When I don't have enough powder sample to scan, I get signatures...
01 January 1970 5,306 1 View