skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nuclear reactor neutron shielding

Abstract

A nuclear reactor includes a reactor pressure vessel and a nuclear reactor core comprising fissile material disposed in a lower portion of the reactor pressure vessel. The lower portion of the reactor pressure vessel is disposed in a reactor cavity. An annular neutron stop is located at an elevation above the uppermost elevation of the nuclear reactor core. The annular neutron stop comprises neutron absorbing material filling an annular gap between the reactor pressure vessel and the wall of the reactor cavity. The annular neutron stop may comprise an outer neutron stop ring attached to the wall of the reactor cavity, and an inner neutron stop ring attached to the reactor pressure vessel. An excore instrument guide tube penetrates through the annular neutron stop, and a neutron plug comprising neutron absorbing material is disposed in the tube at the penetration through the neutron stop.

Inventors:
; ;
Publication Date:
Research Org.:
BWXT mPower, Inc., Charlotte, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1389838
Patent Number(s):
9,761,332
Application Number:
14/299,353
Assignee:
BWXT mPower, Inc. IDO
DOE Contract Number:
NE0000583
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 09
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS

Citation Formats

Speaker, Daniel P, Neeley, Gary W, and Inman, James B. Nuclear reactor neutron shielding. United States: N. p., 2017. Web.
Speaker, Daniel P, Neeley, Gary W, & Inman, James B. Nuclear reactor neutron shielding. United States.
Speaker, Daniel P, Neeley, Gary W, and Inman, James B. Tue . "Nuclear reactor neutron shielding". United States. doi:. https://www.osti.gov/servlets/purl/1389838.
@article{osti_1389838,
title = {Nuclear reactor neutron shielding},
author = {Speaker, Daniel P and Neeley, Gary W and Inman, James B},
abstractNote = {A nuclear reactor includes a reactor pressure vessel and a nuclear reactor core comprising fissile material disposed in a lower portion of the reactor pressure vessel. The lower portion of the reactor pressure vessel is disposed in a reactor cavity. An annular neutron stop is located at an elevation above the uppermost elevation of the nuclear reactor core. The annular neutron stop comprises neutron absorbing material filling an annular gap between the reactor pressure vessel and the wall of the reactor cavity. The annular neutron stop may comprise an outer neutron stop ring attached to the wall of the reactor cavity, and an inner neutron stop ring attached to the reactor pressure vessel. An excore instrument guide tube penetrates through the annular neutron stop, and a neutron plug comprising neutron absorbing material is disposed in the tube at the penetration through the neutron stop.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 12 00:00:00 EDT 2017},
month = {Tue Sep 12 00:00:00 EDT 2017}
}

Patent:

Save / Share: