Apparatus for in situ determination of burnup, cooling time and fissile content of an irradiated nuclear fuel assembly in a fuel storage pond
Abstract
A detector head for in situ inspection of irradiated nuclear fuel assemblies submerged in a water-filled nuclear fuel storage pond. The detector head includes two parallel arms which extend from a housing and which are spaced apart so as to be positionable on opposite sides of a submerged fuel assembly. Each arm includes an ionization chamber and two fission chambers. One fission chamber in each arm is enclosed in a cadmium shield and the other fission chamber is unshielded. The ratio of the outputs of the shielded and unshielded fission chambers is used to determine the boron content of the pond water. Correcting for the boron content, the neutron flux and gamma ray intensity are then used to verify the declared exposure, cooling time and fissile material content of the irradiated fuel assembly.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 865404
- Patent Number(s):
- 4510117
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; situ; determination; burnup; cooling; time; fissile; content; irradiated; nuclear; fuel; assembly; storage; pond; detector; head; inspection; assemblies; submerged; water-filled; parallel; arms; extend; housing; spaced; apart; positionable; opposite; arm; ionization; chamber; fission; chambers; enclosed; cadmium; shield; unshielded; ratio; outputs; shielded; determine; boron; water; correcting; neutron; flux; gamma; ray; intensity; verify; declared; exposure; material; irradiated nuclear; fuel assemblies; gamma ray; nuclear fuel; spaced apart; neutron flux; fuel assembly; fissile material; ionization chamber; irradiated fuel; detector head; fuel storage; storage pond; boron content; situ determination; fissile content; /376/976/
Citation Formats
Phillips, John R, Halbig, James K, Menlove, Howard O, and Klosterbuer, Shirley F. Apparatus for in situ determination of burnup, cooling time and fissile content of an irradiated nuclear fuel assembly in a fuel storage pond. United States: N. p., 1985.
Web.
Phillips, John R, Halbig, James K, Menlove, Howard O, & Klosterbuer, Shirley F. Apparatus for in situ determination of burnup, cooling time and fissile content of an irradiated nuclear fuel assembly in a fuel storage pond. United States.
Phillips, John R, Halbig, James K, Menlove, Howard O, and Klosterbuer, Shirley F. Tue .
"Apparatus for in situ determination of burnup, cooling time and fissile content of an irradiated nuclear fuel assembly in a fuel storage pond". United States. https://www.osti.gov/servlets/purl/865404.
@article{osti_865404,
title = {Apparatus for in situ determination of burnup, cooling time and fissile content of an irradiated nuclear fuel assembly in a fuel storage pond},
author = {Phillips, John R and Halbig, James K and Menlove, Howard O and Klosterbuer, Shirley F},
abstractNote = {A detector head for in situ inspection of irradiated nuclear fuel assemblies submerged in a water-filled nuclear fuel storage pond. The detector head includes two parallel arms which extend from a housing and which are spaced apart so as to be positionable on opposite sides of a submerged fuel assembly. Each arm includes an ionization chamber and two fission chambers. One fission chamber in each arm is enclosed in a cadmium shield and the other fission chamber is unshielded. The ratio of the outputs of the shielded and unshielded fission chambers is used to determine the boron content of the pond water. Correcting for the boron content, the neutron flux and gamma ray intensity are then used to verify the declared exposure, cooling time and fissile material content of the irradiated fuel assembly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.