AMPX

AMPX-2000 is a modular system of FORTRAN computer programs that relate to nuclear analysis with a primary emphasis on tasks associated with the production and use of multigroup and continuous energy cross sections. AMPX-2000 is currently being tested and will be released as the successor to the AMPX-77 code system. AMPX-2000 accepts basic cross-section data from ENDF/B libraries. As opposed to previous versions of AMPX, the current version processes the latest ENDF/B version VI formats. AMPX-2000 can be used to generate a variety of multigroup libraries multigroup libraries that can be used with modern transport codes to perform nuclear analyses. Continuous energy or "point" cross-section libraries can be produced for use in Monte Carlo codes and other applications. One of the new features in AMPX is the capability to process cross-section uncertainty information into multigroup covariance matrices http://www.ornl.gov/sci/scale/utilities/puff_poster.htm that can subsequently be used in radiation transport sensitivity analyses. In addition, AMPX has an internal multigroup format that can be read by various AMPX modules as well as codes outside the system. For example, the Standardized Computer Analyses for Licensing Evaluation (SCALE) system has the capability to read AMPX formatted cross-section libraries. In short, AMPX-2000 is a robust and modular code system that can be used to perform a wide variety of cross-section processing tasks.

For additional information contact: Maurice N. Greene or Mike Dunn