# Xop 2.3

XOP (X-ray Oriented Programs) is a widget-based driver program that is used as a common front-end interface for computer codes of interest to the synchrotron radiation community.

It provides codes for (functional classification):

- x-ray sources (e.g., synchrotron radiation sources, such as undulators and wigglers)

- x-ray optics (characteristics of mirror, filters, crystals, multilayers, etc.)

- multipurpose data visualizations and analyses

Adding external software packages (called "extensions") that are optionally installed easily expands the functionality of XOP. Typical extensions are:

- SHADOWVUI, a Visual User Interface for the SHADOW ray-tracing code

- XAID, a package for XAFS data analysis.

The current version of XOP (v2.3) runs on most Unix, Windows and MacIntosh (OSX) platforms and is available free of charge to the scientific community.

The XOP web page is at:

http://www.esrf.eu/UsersAndScience/Experiments/TBS/SciSoft/xop2.3/

XOP is developed and maintained by Manuel Sanchez del Rio and Roger J. Dejus

When citing XOP, please use this reference:

- M. Sanchez del Rio and R. J. Dejus "Status of XOP: an x-ray optics software toolkit" SPIE Proceedings Vol. 5536 (2004) pp.171-174