• Role of $(n, xn)$ reactions in ADS, IAEA-benchmark and the Dubna Cascade Code

• # Fulltext

https://www.ias.ac.in/article/fulltext/pram/068/02/0315-0324

• # Keywords

Accelerator driven sub-critical system; IAEA Benchmark; Cascade Code; spallation neutron; simulation, $(n, xn)$ reaction cross-section; heat; isotopic yield.

• # Abstract

Dubna Cascade Code (version-2004) has been used for the Monte Carlo simulation of the 1500 MW$_{t}$ accelerator driven sub-critical system (ADS) with 233U + 232Th fuel using the IAEA benchmark. Neutron spectrum, cross-section of $(n, xn)$ reactions, isotopic yield, heat spectra etc. are simulated. Many of these results that help in understanding the IAEA benchmark are presented. It is revealed that the code predicts the proton beam current required for the 1500 MW$_{t}$ ADS for $K_{\text{eff}} = 0.98$ to be 11.6 mA. Radial distribution of heat is fairly in agreement with other codes like the EA-MC and it needs nearly 1% less enrichment than given by other codes. This may be because the code takes care of the role of larger order of the $(n, xn)$ reactions. It is emphasized that there is a strong need to study $(n, xn)$ reactions both theoretically and experimentally for better design.

• # Author Affiliations

1. High Energy Nuclear Physics Laboratory, Department of Physics, University of Rajasthan, Jaipur 302 004, India

• # Pramana – Journal of Physics

Volume 94, 2020
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019