rockjock: RockJock reference library

In benmbutler/powdR: Full Pattern Summation of X-Ray Powder Diffraction Data

Description

A powdRlib object of 168 pure reference patterns from the RockJock library (Cu K-alpha radiation) along with reference intensity ratios. Note that compared to same library supplied with RockJock the powdR patterns have been normalised to 10,000 counts and reference intensity ratios transformed so that all are relative to that of corundum, which has been set to a value of 1.0. Can be used with the fps() and afps() functions for quantitative analysis. Example mixtures for testing the rockjock library with known concentrations are available in the rockjock_mixtures data. See ?rockjock_mixtures.

Usage

rockjock

Format

A powdRlib object of 3 components

xrd

A dataframe of all the count intensities of all reference patterns. Column names denote the unique phase ID of each reference pattern

tth

A vector of the 2theta scale for all reference patterns in the library

phases

A dataframe the phase IDs, names and reference intensity ratios (RIR)

Author(s)

Dennis Eberl

References

Eberl, D.D., 2003. User's guide to RockJock - A program for determining quantitative mineralogy from powder X-ray diffraction data. Boulder, CA.

benmbutler/powdR documentation built on Nov. 29, 2021, 1:05 p.m.