Sensors for measuring thermal conductivity and related methods

Daw, Joshua; Unruh, Troy C.

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Title: Sensors for measuring thermal conductivity and related methods

Abstract

A sensor for measuring thermal conductivity includes an insulator, a test material over the insulator, a conductor over the test material, and a gas within an open volume adjacent the test material and the conductor. An electrical source is configured to provide an alternating current through the conductor to heat the test material. Leads are connected to the conductor and configured to connect to a voltmeter. A method of measuring thermal conductivity includes disposing the sensor in a reactor core in which a nuclear fuel undergoes irradiation and radioactive decay. An alternating current is provided from the electrical source through the conductor to heat the test material. A voltage is measured as a function of time at the leads connected to the conductor. A thermal conductivity of the test material is calculated based on the voltage measured as a function of time. Methods of forming a sensor are also disclosed.

Inventors:: Daw, Joshua; Unruh, Troy C.

Issue Date:: 2020-10-20

Research Org.:: Idaho National Laboratory (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1771534

Patent Number(s):: 10809213

Application Number:: 15/827,891

Assignee:: Battelle Energy Alliance, LLC (Idaho Falls, ID)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N25/005 - {by investigating specific heat}
G01N25/18 - by investigating thermal conductivity
G01N27/002 - {by investigating the work function voltage}
G01N27/18 - caused by changes in the thermal conductivity of a surrounding material to be tested

Show less

DOE Contract Number:: AC07-05ID14517

Resource Type:: Patent

Resource Relation:: Patent File Date: 11/30/2017

Country of Publication:: United States

Language:: English

Citation Formats


                    Daw, Joshua, and Unruh, Troy C. Sensors for measuring thermal conductivity and related methods.  United States: N. p., 2020. 
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                    Daw, Joshua, & Unruh, Troy C. Sensors for measuring thermal conductivity and related methods.  United States.

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                    Daw, Joshua, and Unruh, Troy C. Tue .  
        "Sensors for measuring thermal conductivity and related methods".  United States.  https://www.osti.gov/servlets/purl/1771534.

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@article{osti_1771534,

  title        = {Sensors for measuring thermal conductivity and related methods},

  author       = {Daw, Joshua and Unruh, Troy C.},

  abstractNote = {A sensor for measuring thermal conductivity includes an insulator, a test material over the insulator, a conductor over the test material, and a gas within an open volume adjacent the test material and the conductor. An electrical source is configured to provide an alternating current through the conductor to heat the test material. Leads are connected to the conductor and configured to connect to a voltmeter. A method of measuring thermal conductivity includes disposing the sensor in a reactor core in which a nuclear fuel undergoes irradiation and radioactive decay. An alternating current is provided from the electrical source through the conductor to heat the test material. A voltage is measured as a function of time at the leads connected to the conductor. A thermal conductivity of the test material is calculated based on the voltage measured as a function of time. Methods of forming a sensor are also disclosed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {10}

}

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Title: Sensors for measuring thermal conductivity and related methods

Abstract

Citation Formats

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein patent, April 2004

Method and system for high-speed, 3D imaging of optically-invisible radiation and detector and array of such detectors for use therein patent-application, January 2005

Coated semiconductor devices for neutron detection patent, November 2002

Non-Streaming High-Efficiency Perforated Semiconductor Neutron Detectors, Methods of Making Same and Measuring Wand and Detector Modules Utilizing Same patent-application, December 2009

Radiation assisted electron emission device patent, May 2003

Apparatus and method for determination of one or more free neutron characteristics patent, April 2017

Apparatus and systems for measuring elongation of objects, methods of measuring, and reactor patent, November 2011

Non-streaming high-efficiency perforated semiconductor neutron detectors, methods of making same and measuring wand and detector modules utilizing same patent, December 2010

Micro neutron detectors patent-application, December 2006

Micro-pocket fission detectors (MPFD) for in-core neutron flux monitoring journal, December 2005

Non-contact photothermal method for measuring thermal diffusivity and electronic defect properties of solids patent, September 1997

Method of fabricating a neutron detector such as a microstructured semiconductor neutron detector patent, July 2014

Micro Neutron Detectors patent-application, March 2006

Apparatus and Method for the Determination of One or More Neutron Source Characteristics patent-application, June 2017

Method and system for high-speed, 3D imaging of optically-invisible radiation patent, November 2004

Laser flash thermal conductivity apparatus and method patent, May 1990

Gas-Filled Neutron Detectors and Imaging System and Array of Such Detectors patent-application, September 2013

Micro neutron detectors patent-application, March 2006

Collimated radiation detector assembly, array of collimated radiation detectors and collimated radiation detector module patent-application, February 2003

High Temperature Thermocouple Design and Fabrication patent-application, August 2008

Tubular Gas Guide Element, Gas Generation and Feed Unit and Curtain Airbag Unit patent-application, September 2008

Apparatus and Systems for Measuring Elongation of Objects, Methods of Measuring, and Reactor patent-application, October 2010

High-resolution ionization detector and array of such detectors patent, January 2001

High-temperature thermocouples and related methods patent, January 2011

Method and system for measuring neutron emissions and ionizing radiation, solid state detector for use therein, and imaging system and array of such detectors for use therein patent, July 2005

High-efficiency neutron detectors and methods of making same patent-application, November 2005

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein patent, March 2003

Hot wire needle probe for thermal conductivity detection patent, November 2015

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein patent-application, July 2003

Micro neutron detectors patent-application, February 2006

Gas-Filled Neutron Detectors Having Improved Detection Efficiency patent-application, August 2012

Thermo-Acoustic Nuclear Power Distribution Measurement Assembly patent-application, December 2014

Process of Forming a Crystal Having a Particular Shape and the Crystal Formed by the Process patent-application, February 2013

Apparatus and method for determination of one or more free neutron characteristics patent, July 2015

Analysis of the 3-omega method for thermal conductivity measurement journal, March 2009

Method of Fabricating a Neutron Detector Such as a Microstructured Semiconductor Neutron Detector patent-application, December 2013

High-Efficiency Microstructured Semiconductor Neutron Detectors and Process to Fabricate High-Efficiency Microstructured Semiconductor Neutron Detectors patent-application, January 2017

Collimated radiation detector assembly, array of collimated radiation detectors and collimated radiation detector module patent, August 2004

Flexible temperature sensor and sensor array patent, July 2014

Micro neutron detectors patent-application, January 2007

Method and system for detecting ionizing radiation patent-application, March 2003

Method and system for detecting ionizing radiation patent, October 2004

Pocked surface neutron detector patent, April 2003

Apparatus and method for the determination of one or more neutron source characteristics patent, October 2016

Gas-filled neutron detectors having improved detection efficiency patent, August 2013

Array Indexing with Sequential Address Generator for a Multi-Dimensional Array Having Fixed Address Indices patent-application, March 2002

High-efficiency neutron detectors and methods of making same patent, January 2007

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein
patent, April 2004

Method and system for high-speed, 3D imaging of optically-invisible radiation and detector and array of such detectors for use therein
patent-application, January 2005

Coated semiconductor devices for neutron detection
patent, November 2002

Non-Streaming High-Efficiency Perforated Semiconductor Neutron Detectors, Methods of Making Same and Measuring Wand and Detector Modules Utilizing Same
patent-application, December 2009

Radiation assisted electron emission device
patent, May 2003

Apparatus and method for determination of one or more free neutron characteristics
patent, April 2017

Apparatus and systems for measuring elongation of objects, methods of measuring, and reactor
patent, November 2011

Non-streaming high-efficiency perforated semiconductor neutron detectors, methods of making same and measuring wand and detector modules utilizing same
patent, December 2010

Micro neutron detectors
patent-application, December 2006

Micro-pocket fission detectors (MPFD) for in-core neutron flux monitoring
journal, December 2005

Non-contact photothermal method for measuring thermal diffusivity and electronic defect properties of solids
patent, September 1997

Method of fabricating a neutron detector such as a microstructured semiconductor neutron detector
patent, July 2014

Micro Neutron Detectors
patent-application, March 2006

Apparatus and Method for the Determination of One or More Neutron Source Characteristics
patent-application, June 2017

Method and system for high-speed, 3D imaging of optically-invisible radiation
patent, November 2004

Laser flash thermal conductivity apparatus and method
patent, May 1990

Gas-Filled Neutron Detectors and Imaging System and Array of Such Detectors
patent-application, September 2013

Micro neutron detectors
patent-application, March 2006

Collimated radiation detector assembly, array of collimated radiation detectors and collimated radiation detector module
patent-application, February 2003

High Temperature Thermocouple Design and Fabrication
patent-application, August 2008

Tubular Gas Guide Element, Gas Generation and Feed Unit and Curtain Airbag Unit
patent-application, September 2008

Apparatus and Systems for Measuring Elongation of Objects, Methods of Measuring, and Reactor
patent-application, October 2010

High-resolution ionization detector and array of such detectors
patent, January 2001

High-temperature thermocouples and related methods
patent, January 2011

Method and system for measuring neutron emissions and ionizing radiation, solid state detector for use therein, and imaging system and array of such detectors for use therein
patent, July 2005

High-efficiency neutron detectors and methods of making same
patent-application, November 2005

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein
patent, March 2003

Hot wire needle probe for thermal conductivity detection
patent, November 2015

Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein
patent-application, July 2003

Micro neutron detectors
patent-application, February 2006

Gas-Filled Neutron Detectors Having Improved Detection Efficiency
patent-application, August 2012

Thermo-Acoustic Nuclear Power Distribution Measurement Assembly
patent-application, December 2014

Process of Forming a Crystal Having a Particular Shape and the Crystal Formed by the Process
patent-application, February 2013

Apparatus and method for determination of one or more free neutron characteristics
patent, July 2015

Analysis of the 3-omega method for thermal conductivity measurement
journal, March 2009

Method of Fabricating a Neutron Detector Such as a Microstructured Semiconductor Neutron Detector
patent-application, December 2013

High-Efficiency Microstructured Semiconductor Neutron Detectors and Process to Fabricate High-Efficiency Microstructured Semiconductor Neutron Detectors
patent-application, January 2017

Collimated radiation detector assembly, array of collimated radiation detectors and collimated radiation detector module
patent, August 2004

Flexible temperature sensor and sensor array
patent, July 2014

Micro neutron detectors
patent-application, January 2007

Method and system for detecting ionizing radiation
patent-application, March 2003

Method and system for detecting ionizing radiation
patent, October 2004

Pocked surface neutron detector
patent, April 2003

Apparatus and method for the determination of one or more neutron source characteristics
patent, October 2016

Gas-filled neutron detectors having improved detection efficiency
patent, August 2013

Array Indexing with Sequential Address Generator for a Multi-Dimensional Array Having Fixed Address Indices
patent-application, March 2002

High-efficiency neutron detectors and methods of making same
patent, January 2007