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Title: Sodium leak detection system for liquid metal cooled nuclear reactors

Abstract

A light source is projected across the gap between the containment vessel and the reactor vessel. The reflected light is then analyzed with an absorption spectrometer. The presence of any sodium vapor along the optical path results in a change of the optical transmissivity of the media. Since the absorption spectrum of sodium is well known, the light source is chosen such that the sensor is responsive only to the presence of sodium molecules. The optical sensor is designed to be small and require a minimum of amount of change to the reactor containment vessel.

Inventors:
 [1]
  1. 12 La Vista Verde, Rancho Palos Verdes, CA 90274
Issue Date:
Research Org.:
PHYSICAL RESEARCH INC
OSTI Identifier:
868035
Patent Number(s):
5059383
Assignee:
Modarres, Dariush (12 La Vista Verde, Rancho Palos Verdes, CA 90274)
DOE Contract Number:  
AC03-88ER80665
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
sodium; leak; detection; liquid; metal; cooled; nuclear; reactors; light; source; projected; gap; containment; vessel; reactor; reflected; analyzed; absorption; spectrometer; presence; vapor; optical; path; results; change; transmissivity; media; spectrum; chosen; sensor; responsive; molecules; designed; require; minimum; amount; leak detection; reactor containment; nuclear reactors; containment vessel; light source; reactor vessel; nuclear reactor; liquid metal; optical path; metal cooled; reflected light; cooled nuclear; absorption spectrum; optical sensor; sodium vapor; absorption spectrometer; /376/976/

Citation Formats

Modarres, Dariush. Sodium leak detection system for liquid metal cooled nuclear reactors. United States: N. p., 1991. Web.
Modarres, Dariush. Sodium leak detection system for liquid metal cooled nuclear reactors. United States.
Modarres, Dariush. Tue . "Sodium leak detection system for liquid metal cooled nuclear reactors". United States. https://www.osti.gov/servlets/purl/868035.
@article{osti_868035,
title = {Sodium leak detection system for liquid metal cooled nuclear reactors},
author = {Modarres, Dariush},
abstractNote = {A light source is projected across the gap between the containment vessel and the reactor vessel. The reflected light is then analyzed with an absorption spectrometer. The presence of any sodium vapor along the optical path results in a change of the optical transmissivity of the media. Since the absorption spectrum of sodium is well known, the light source is chosen such that the sensor is responsive only to the presence of sodium molecules. The optical sensor is designed to be small and require a minimum of amount of change to the reactor containment vessel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}

Patent:

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