Processing Of High Temperature Continuous Energy Nuclear Data Generation Using Sigace Code

Abstract:

Generation of high temperature nuclear data library of continuous energy (ACE-file) has been done without using nuclear data processing commonly used such as NJOY code. The generation process of nuclear data libraries using SIGACE code for high temperature by utilizing the ACE-file available at a low temperature (300K).

The ACE-file at a temperature of 300K is usually already included with the Monte Carlo MCNP/MCNPX package code. Nuclear data library processing of continuous energy at high temperatures such as 600K, 900K, 1200K and 1500K for 10B, 11B, 12C, 16O, 28Si, 235U and 238U isotopes are created with SIGACE code. The NJOY99.v364 code is defined as standard compared code. The 300K ACE-file processed by NJOY99.v364 code is as basic input of SIGACE code. Visual verification has been done using COMPLOT-2010 code. The ACE-file nuclear data processing is validated by Monte Carlo MCNP5v1.2 code for reactor multiplication calculation of pebble-bed fuel containing UO2 TRISO for RGTT200K. Overall results of nuclear data processing with SIGACE code are relatively good. While the results of validation based on reactor multiplication calculations (SIGACE/NJOY99.v364) are relatively small differences (maximum around ± 0.75%) for all high temperatures processed. Therefore we can conclude that generation of high temperature continuous energy nuclear data library (ACE-file) with SIGACE code can be used if there are not available nuclear data processing code such as NJOY andEvaluated Nuclear Data Files (ENDFs).

Keywords: nuclear data processing, ACE-file, SIGACE, NJOY, MCNP/MCNPX

Suwoto, Zuhair dan Hery Adrial
Pusat Teknologi Reaktor dan Keselamatan Nuklir - BATAN
Kawasan Puspiptek, gedung 80 Serpong
Email :suwoto@batan.go.id