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Title: Systems and methods for retaining and removing irradiation targets in a nuclear reactor

Abstract

A retainer is placed on a conduit to control movement of objects within the conduit in access-restricted areas. Retainers can prevent or allow movement in the conduit in a discriminatory fashion. A fork with variable-spacing between prongs can be a retainer and be extended or collapsed with respect to the conduit to change the size of the conduit. Different objects of different sizes may thus react to the fork differently, some passing and some being blocked. Retainers can be installed in inaccessible areas and allow selective movement in remote portions of conduit where users cannot directly interface, including below nuclear reactors. Position detectors can monitor the movement of objects through the conduit remotely as well, permitting engagement of a desired level of restriction and object movement. Retainers are useable in a variety of nuclear power plants and with irradiation target delivery, harvesting, driving, and other remote handling or robotic systems.

Inventors:
; ; ;
Issue Date:
Research Org.:
GE-Hitachi Nuclear Energy Americas, LLC, Wilmington, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1230018
Patent Number(s):
9208909
Application Number:
13/710,090
Assignee:
GE-Hitachi Nuclear Energy Americas, LLC
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G - PHYSICS G21 - NUCLEAR PHYSICS G21G - CONVERSION OF CHEMICAL ELEMENTS
DOE Contract Number:  
FC52-09NA29626
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Dec 10
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS

Citation Formats

Runkle, Gary A., Matsumoto, Jack T., Dayal, Yogeshwar, and Heinold, Mark R. Systems and methods for retaining and removing irradiation targets in a nuclear reactor. United States: N. p., 2015. Web.
Runkle, Gary A., Matsumoto, Jack T., Dayal, Yogeshwar, & Heinold, Mark R. Systems and methods for retaining and removing irradiation targets in a nuclear reactor. United States.
Runkle, Gary A., Matsumoto, Jack T., Dayal, Yogeshwar, and Heinold, Mark R. Tue . "Systems and methods for retaining and removing irradiation targets in a nuclear reactor". United States. https://www.osti.gov/servlets/purl/1230018.
@article{osti_1230018,
title = {Systems and methods for retaining and removing irradiation targets in a nuclear reactor},
author = {Runkle, Gary A. and Matsumoto, Jack T. and Dayal, Yogeshwar and Heinold, Mark R.},
abstractNote = {A retainer is placed on a conduit to control movement of objects within the conduit in access-restricted areas. Retainers can prevent or allow movement in the conduit in a discriminatory fashion. A fork with variable-spacing between prongs can be a retainer and be extended or collapsed with respect to the conduit to change the size of the conduit. Different objects of different sizes may thus react to the fork differently, some passing and some being blocked. Retainers can be installed in inaccessible areas and allow selective movement in remote portions of conduit where users cannot directly interface, including below nuclear reactors. Position detectors can monitor the movement of objects through the conduit remotely as well, permitting engagement of a desired level of restriction and object movement. Retainers are useable in a variety of nuclear power plants and with irradiation target delivery, harvesting, driving, and other remote handling or robotic systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

Works referenced in this record:

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patent, February 1976


Irradiation surveillance specimen assembly
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Valve construction for sand and slurry service
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Reactor for production of U-233
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System for and method of producing and retaining tritium
patent, May 1987


Method and apparatus for the production and extraction of molybdenum-99
patent, June 1999


Method and apparatus for producing radioisotopes
patent, January 2004


Irradiation Target Retention Assemblies for Isotope Delivery System
patent-application, March 2011