This work is focused on the strategy for utilizing high-burnup fuel in pressurized water
reactors (PWR) with special emphasis on the full array of neutronic considerations. The …

Mechanical vibrations of core internals are among the main perturbations that induce
oscillations in the neutron flux field, also known as neutron noise. In this work, different …

Recent fuel anomalies at a Swiss power plant have motivated the development at PSI of the
“Cycle Check-Up”(CHUP) methodology which consists in performing Monte Carlo transport …

Presently, a criticality safety evaluation methodology for the final geological disposal of
Swiss spent nuclear fuel is under development at the Paul Scherrer Institute in collaboration …

This report summarizes the different scenarios corresponding to the presence of various
noise sources in nuclear reactors. The definition of the noise sources and their modelling …

Nuclear fuel management entails making decisions that influence how a reactor core's
reactivity and flux, power and burnup spatial distributions vary. These spatial distributions …

This paper assesses the performance of internally and externally cooled annular fuel in a
four-loop pressurized water reactor during a variety of transients and accidents, namely, the …

Abstract At the Paul Scherrer Institute (PSI), a computational scheme aimed at high fidelity
fast neutron fluence estimations for Light-Water-Reactors (LWRs) was in previous years …

In order to reduce the response time when simulating large reactors in detail, a parallel
version of the thermal–hydraulic subchannel code COBRA-TF (CTF) has been developed …

The Best Estimate analysis consists of a coupled thermal-hydraulic and neutronic
description of the nuclear system's behavior; uncertainties from both aspects should be …