• A benchmark study on uncertainty of ALICE ASH 1.0, TALYS 1.0 and MCNPX 2.6 codes to estimate production yield of accelerator-based radioisotopes

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/081/01/0087-0101

• # Keywords

Accelerator-based radioisotope; production yield; ALICE ASH 1.0; TALYS 1.0; MCNPX 2.6.

• # Abstract

Radioisotopes find very important applications in various sectors of economic significance and their production is an important activity of many national programmes. Some deterministic codes such as ALICE ASH 1.0 and TALYS 1.0 are extensively used to calculate the yield of a radioisotope via numerical integral over the calculated cross-sections. MCNPX 2.6 stochastic code is more interesting among the other Monte Carlo-based computational codes for accessibility of different intranuclear cascade physical models to calculate the yield using experiment-based cross-sections. A benchmark study has been proposed to determine the codes' uncertainty in such calculations. ${}^{109}$Cd, ${}^{86}$Y and ${}^{85}$Sr production yields by proton irradiation of silver, rubidium chloride and strontium carbonate targets are studied. $^{109}$Cd, $^{86}$Y and $^{85}$Sr cross-sections are calculated using ALICE ASH 1.0 and TALYS 1.0 codes. The evaluated yields are compared with the experimental yields. The targets are modelled using MCNPX 2.6 code. The production yields are calculated using the available physical models of the code. The study shows acceptable relative discrepancies between theoretical and experimental results. Minimum relative discrepancy between experimental and theoretical yields is achievable using ISABEL intranuclear model in most of the targets simulated by MCNPX 2.6. The stochastic code utilization can be suggested for calculating $^{109}$Cd, $^{86}$Y and $^{85}$Sr production yields. It results in more valid data than TALYS 1.0 and ALICE ASH 1.0 in noticeably less average relative discrepancies.

• # Author Affiliations

1. Department of Radiation Application, Shahid Beheshti University, G.C., Tehran, Iran
2. Department of Physics, Talca University, Talca, Chile
3. Department of Physics, Zanjan University, Zanjan, Iran
4. Department of Physics, Amirkabir University, Tehran, Iran
5. Department of Physics, Firoozkooh Branch, Islamic Azad University, Firoozkooh, Iran
6. Department of Energy Science, Sungkyunkwan University, 300 Cheoncheon-dong, Suwon, Korea

• # Pramana – Journal of Physics

Volume 94, 2020
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019