The monitoring of detailed 3-Dimensional (3D) core power distribution is a prerequisite for the operation of nuclear power reactors to ensure that various safety limits imposed on the fuel pellets and fuel clad barriers, such as the Local Power Density (LPD) and the Departure from the Nucleate Boiling Ratio (DNBR), are not violated during the reactor’s operation. The LPD and DNBR need to be cal...

The paper demonstrates the development of a numerical algorithm to solve a set of nonlinear hyperbolic equations in time domain in Eulerian frame of reference using a characteristics based finite difference implicit scheme to analyze density wave oscillations in boiling water nuclear reactor. The present algorithm removes the uncertainties existing in literature over the treatment of boundary c...

Cubic-meter-sized antineutrino detectors can be used to non intrusively, robustly, and automatically monitor and safeguard a wide variety of nuclear reactor types, including power reactors, research reactors, and plutonium production reactors. Since the antineutrino spectra and relative yields of fissioning isotopes depend on the isotopic composition of the core, changes in composition can be o...

The safe operation of a fast burst reactor (FBR) depends directly on the knowledge, experience, and judgment of the operating staff to understand the mechanisms by which experiments influence the reactor’s behavior. Fast burst reactors are a unique class of research reactors that generate high yield, self-terminated power pulses from reactivity insertions exceeding prompt critical. These reacto...

I apply Barwise and Seligman’s theory of information flow to understand how sets of signals can carry information. More precisely I focus on the case where the information of interest is not present in any individual signal, but rather is carried by correlations between signals. This focus has the virtue of highlighting an oft-neglected process, viz., the different methods that apply categories...

Fast reactor fuel cycle (FRFC) is regaining importance because of its vital role in the long term development of nuclear power. The safety issues associated with the fast reactors are now well understood and newer designs can address those from the lessons learned in the past. The same cannot be ascertained about their safeguards issues. Primary reason being the presence of special nuclear mate...