[GSAS-II] Advice on high temperature instrument parameter files

[Brown, Matthew]

Hello all

Sorry if this is a very basic question. I’m doing high temperature experiments over a wide temperature range (25 C to 750 C, with a focus just below 660 C when Al melts). Should I be preparing instrument parameter files (using LaB6) at various temperatures, or would just one at room temperature be fine? I gathered all the data, as my first instinct was to always prepare the IP file under the exact same conditions as the actual measurement. However, now I’m thinking, the LaB6 is going to have it’s lattice parameters change with temperature, so if GSAS-II isn’t expecting that, I could actually be making things worse.

Is there a good introduction to high temperature experiments in PXRD?

Thanks all!

Dr. Matthew L. Brown  (he/him, they/them)
Lab Technician V (Chemistry, Crystallography)
Office: 250-807-8365

UBC School of Engineering
1540 Innovation Dr.
Kelowna, BC
V1V 1V7

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