# XAID
Software tools for visualization and analysis of XAFS spectra

XAID is a user-friendly package to perform XAFS data analysis. It is intended for visualization, averaging, extraction, filtering, etc. of multiple sets of raw data.

For a more sophisticated analysis, including fitting to a model or ab-initio calculations, other codes should be used.

XAID is distributes as an extension of the XOP software package. See the XOP Web page for further instructions, or access directly to XOP main help.

## Main application window

For starting the different applications, use the XAID main window:

## Main modules for XAFS analysis:

- XAID_MU2CHI EXAFS signal Extraction
- XAID_FF Fourier Filtering of EXAFS signals

- XAID_CALIB Calibration of dispersive XAFS spectra

## Modules for multiple spectra analysis

- EXODUS Visualization, interpolation, reesampling, averaging, linear combination and fit from multiple spectra contained either in SPEC file or in multiple ASCII files.
- DELIA Simultaneous visualization, interpolation, calibration, extraction and Fourier filtering on a bunch of spectra (typically dispersive XAFS experiments).

## XANES normalization

- XANES normalization can be performed using EXODUS.

## DABAX tools

- Tables of atomic scattering factors f1 and f2
- McKale phases
- EXAFS spectra database
- XANES spectra database

## Starting the program

Start XOP. From the main window Xop->Load Extension... and select xaid (must be installed):

## Installation

XAID can be freely installed in virtually any kind of machine. It is distributed as a part of the XOP software package.See the XOP Web page for further instructions.

## For programmers

The source code (in IDL) of XAID is available in the extensions/xaid/src directory of the XOP installation.

## Acknowledgement

Thanks to the ID24 and BM29 staff, in particular Sakura Pascarelli, Moniek Tromp and Carmelo Prestipino for providing me with the example data, and for helpful feedback and discussions.