OVERVIEW    

The 10.3.2 beamline software is comprised of many data acquisition, utilities, and data analysis programs. The program names and their purpose is laid out below:

    XY Mapping

            This is the program used for x-ray fluorescence  mapping of a sample. It gives a 2 dimensional view of the elemental distribution in the sample.

          EXAFS

                This program allows the determination of the fine structure of elements including chemical state and structure.

        MCA

                This program allows a real time elemental full spectrum survey of anywhere the beam is hitting.

Data Analysis Software

EXAFS:

        EXAFS Editor - Display and first stages of processing raw data

Kspace&background removal - Remove pre-edge and convert to knc(k)

Fourier filtering - Isolate shells and filter

Linear fit - fit data to sums of references, with optional E0 shift

EXAFS linear least-squares fit, combinations - find best combinations of 1,2,3... references to represent data

PCA - Principal components analysis, with target transformation

EXAFSfit - Multishell fitting with variable distance, CN, Ds2, DE0, asymmetry

Polarization fit - Analyzes data taken at various angles for polarization effect

XRF Mapping

XY Display - Display, tricolor maps, scatterplots and cross-correlation

Difference Map - Difference between maps taken at different energies

Mix&Match maps - take a channel from one map and put it into another

Ratio Map - Ratio between maps taken at different energies

Register - Shifts one map to make it line up with another

Decontaminate - Remove "leakage" of one channel into another

Other

MCA Reader - Reads and displays MCA spectra

2-Column data editor - General program for operations on Y vs. X data

Plot, add, multiply - Plots several graphs on one page, also does weighted sums or products

 Manuals

    EXAFS editor
    Decontaminate
    Fourier filtering for EXAFS
    Linear Fit
    MCA spectrum reader
    Mix and match maps
    NLSfit
    PCA
    Plot
    Ratio Map