Cross-section reconstruction Resonance formalisms for the calculation of Resonance integrals with the spectral code TOTMOS

Automatic translation: This work deals with the resonance effects of cross sections. These occur at different energy levels depending on the reactants involved on. About the influence of resonance on calculations with the neutron transport code To capture TOTMOS, the present program should be expanded with a new module will. This should use the parameters stored in databases to determine the course of the Calculate the effective cross section for the elements required in the calculation. The databases are available in the internationally standardized ENDF-6 format. Thanks to This standardized form of database makes it very easy to change the basis of calculation. This also leads to an extension of the calculation possibilities of the code TOTMOS. First, as part of a literature search, an overview of the current methods used by TOTMOS and those obtained by other codes. This Findings then flowed into the implementation of the new module. Fortran was used as the programming language. This choice was obvious, since TOTMOS is a program implemented in Fortran. Thus, additional problems that arise when coupling codes, for example for parameter transfer can, avoided. The implementation of the reconstruction was through the use carried out by formalisms according to Breit and Wigner and Reich and Moore. For this possible implementation strategies were first examined. In addition, before At the beginning of programming tries to localize as many possible difficulties as possible. Knowing about these should help in assessing what is needed Provide assistance with the time required to implement sub-parts of the program. After the programming implementation of reading in the data in the ENDF-6 Once the database format was complete, the formalisms were implemented. When describing the programming, the focus was on various aspects. First, the structuring of the program in Fortran was presented. For that resorted to the graphical representation of access processes. Subsequently the problems that arise in the implementation of mathematical operations in the complex number space, which occurred several times.