The Generation IV high temperature pebble bed reactor has garnered interest over the years
as a viable solution for reducing overall carbon emissions. The potential for enhanced …

The Karhunen–Loeve procedure and the associated polynomial chaos expansion have
been employed to solve a simple first order stochastic differential equation which is typical of …

A method for designing and optimizing recirculating pebble-bed reactor cores is presented.
At the heart of the method is a new reactor physics computer code, PEBBED, which …

In this study, the criticality analysis for a pebble bed reactor, HTR-10, is performed with
Monte Carlo simulations. The MCNP4B code package is utilized in the analysis with ENDF/B …

A method is developed for the computation of infinite-medium Dancoff factors for spherical
kernels with a stochastic packing as used in high-temperature reactors. The method is used …

A new mathematical model, the dual-sphere model, is proposed to analytically evaluate
Dancoff factors of TRISO fuel kernels based on the chord method. The accurate evaluation …

Reprocessing of spent LWR fuel is an intrinsic part of the closed fuel cycle. While current
technologies treat recovered minor actinides as high level wastes, the primary objective of …

Statistical aspects of particle transport in spatially random media in one dimension are
studied analytically using the dichotomic and the binomial binary random processes as two …

The concept of optimal moderation is introduced as a reactor configuration in which any
change in the fuel-to-moderator ratio causes a reduction in reactivity. It is shown that such a …

The Dancoff factor is used in deterministic codes for the calculation of resonance absorption.
In using the Monte Carlo simulation, some techniques, such as repeated structure, are …