Design and Testing of Long-lifetime Active Sensor Arrays for In-core Multi-dimensional Flux Measurements
Title | Design and Testing of Long-lifetime Active Sensor Arrays for In-core Multi-dimensional Flux Measurements PDF eBook |
Author | Tyrel Daniel Frank George |
Publisher | |
Pages | |
Release | 2016 |
Genre | |
ISBN |
Fission chambers are a common type of detector used to determine the neutron flux and power of a nuclear reactor. Due to the limited space and high neutron flux in a reactor core, it is difficult to perform real-time flux measurements with present-day in-core instrumentation. Micro-pocket fission detectors, or MPFDs, are relatively small in size and have low neutron sensitivity while retaining a large neutron to gamma ray discrimination ratio, thereby, allowing them to be used as active neutron flux monitors inside a nuclear reactor core. The micro-pocket fission chamber allows for multiple detectors to be inserted into a flux port or other available openings within the nuclear reactor core. Any material used to construct the MPFD must be rugged and capable of sustaining radiation damage for long periods of time. Each calibrated MPFD provides measurements of the flux for a discrete location. The size of these detectors allows for a spatial map of the flux to be developed, enabling real-time analysis of core burnup, power peaking, and rod shadowing. Small diameter thermocouples can be included with the array to also measure the temperature at each location. The following document details the research and development of MPFDs for long term use in nuclear power reactors. Previous MPFD designs were improved, miniaturized, and optimized for long term operations in reactor test ports designed for passive measurements of fluence using iron wires. Detector chambers with dimensions of 0.08 in x 0.06 in x 0.04 in were attached to a common cathode and individual anodes to construct an array of the MPFDs. Each array was tested at the Kansas State University TRIGA Mark II nuclear reactor to demonstrate functionality. The linear response in reactor power was measured. These arrays have also demonstrated reactor power tracking by following reactivity changes in steady state operations and reactor pulsing events. Stability testing showed consistent operation at 100 kW for several hours. The MPFDs have been demonstrated to be a viable technology for in-core measurements.
Sensor Arrays and Multi-Dimensional Sensor Systems
Title | Sensor Arrays and Multi-Dimensional Sensor Systems PDF eBook |
Author | J. R. Stetter |
Publisher | The Electrochemical Society |
Pages | 45 |
Release | 2008-03 |
Genre | Science |
ISBN | 1566776201 |
The papers included in this issue of ECS Transactions were originally presented in the symposium ¿Sensor Arrays and Multi-Dimensional Sensor Systems¿, held during the 212th meeting of The Electrochemical Society, in Washington, DC, from October 7 to 12, 2007.
Simulation-based Optimum Design of Sensor Arrays Using Multi-objective Tabu Search
Title | Simulation-based Optimum Design of Sensor Arrays Using Multi-objective Tabu Search PDF eBook |
Author | Zongyu Geng |
Publisher | |
Pages | |
Release | 2010 |
Genre | Chemical detectors |
ISBN |
Sensor Arrays and Multi-dimensional Sensor Systems
Title | Sensor Arrays and Multi-dimensional Sensor Systems PDF eBook |
Author | Electrochemical Society (Ecs) |
Publisher | Curran Associates Incorporated |
Pages | 35 |
Release | 2008 |
Genre | Technology & Engineering |
ISBN | 9781605601892 |
Bulletin of the Atomic Scientists
Title | Bulletin of the Atomic Scientists PDF eBook |
Author | |
Publisher | |
Pages | 88 |
Release | 1961-05 |
Genre | |
ISBN |
The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Scientific and Technical Aerospace Reports
Title | Scientific and Technical Aerospace Reports PDF eBook |
Author | |
Publisher | |
Pages | 704 |
Release | 1995 |
Genre | Aeronautics |
ISBN |
Applied Mechanics Reviews
Title | Applied Mechanics Reviews PDF eBook |
Author | |
Publisher | |
Pages | 390 |
Release | 1994 |
Genre | Mechanics, Applied |
ISBN |