COMPARISON OF CONSTANT TEMPERATURE MODEL AND BACK-SHIFTED FERMI GAS MODEL FOR THE 244;245Cm (n; f) REACTION CROSS SECTION CALCULATION USING TALYS

• Main Author: BUDI RAYOGA (NIM: 10211029), DANI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/21561
• Institution: Institut Teknologi Bandung

After the discovery of nuclear reaction by Rutherford, nuclear reaction experiments <br /> <br /> have been done to study the atomic nucleus. Until now, the nuclear <br /> <br /> experiments was performed to obtain a nuclear data. The nuclear data libraries <br /> <br /> that are constructed with the experimental results provide essential information <br /> <br /> for existing and new nuclear technologies. Level densities model is one of <br /> <br /> the nuclear model that could be used for nuclear reaction and nuclear data <br /> <br /> calculation in TALYS program. TALYS is a computer code system for the <br /> <br /> analysis and prediction of nuclear reactions. In this paper, the result of 244Cm <br /> <br /> (n; f) and 245Cm (n; f) reaction cross section calculation using two different <br /> <br /> level densities model, Constant Temperature Model (CTM) and Back-Shifted <br /> <br /> Fermi Gas Model (BSFGM), will be compared each other. The calculation of <br /> <br /> cross section using CTM and BSFGM showed discrepancies because of different <br /> <br /> value of pairing energy parameter. In addition, the calculation also show that <br /> <br /> effect of odd-even nuclei affect the 244Cm (n; f) and 245Cm (n; f) reaction <br /> <br /> cross section. This study shows that when compared with data from ENDF, <br /> <br /> cross section calculation using CTM and BSFGM with TALYS give good result.