1. Overview

The OpenBPS is developing to solve nuclide transfromation problem due to the decay process. The minimal information is necessary to solve such problem is information about material with number of isotope and their nuclear concentrations and a file with all required transition from one nuclides to others called a chain. File format specification is .xml.The short description of inputs in the table below:

Table 1. Description of input OpenBPS files

Filename

Description

Configure.xml

Main configuration file with settings and information about placement of other files. configure.xml should be placed itself by default in directory where OpenBPS executive are called from

Materials.xml (name of file can be arbitrary)

All about material nuclides composition along with power [Wt] normalization and volume [cm^3] attributes.

Chain.xml (name of file can be arbitrary)

Nuclides changing through decay process information including data for transformation by external field. For neutrons it could be capture, fission, e.t.c.

Nuclides.xml (name of file can be arbitrary) optional

The individual nuclide data including mass [a.e.m], index (ZAM), and other specific features.

Reactions.xml (name of file can be arbitrary) optional

For material under induced radiation is provided values with reaction rates, flux and/or cross-section structure.

Number of Xslibs.xml (names of files can be arbitrary) optional

Additional cross-section data in multi- group energy discretization. The data could be used only with reactions.xml file. Number of cross-section files is not restricted