Clarice Phelps

Clarice Phelps

Clarice Evone Phelps (née Salone) is an American chemist and researcher at Oak Ridge National Laboratory. She was part of the team involved with the discovery of element 117, Tennessine. Her research includes actinide and lanthanide separations for medical use isotopes.

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Clarice Phelps made history twice when she helped discover a new element, and was the first African-American woman to do so. She was then wiped off Wikipedia. - The Brilliant

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August 12, 2020

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Claiming A Seat At The Periodic Table | Clarice Phelps | TEDxNashvilleWomen

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Phelps collaborated with the Argonne National Laboratory’s Californium Rare Isotope Breeder Upgrade (CARIBU) to electroplate platimum and stainless-steel plates with californium-252 for nuclear fission fragment analysis. CARIBU (California Rare Isotope Breeder Upgrade) creates beams of californium-252 fission fragments, neutron-rich isotopes, allowing physicists to study the nuclear structure of atoms.

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ThePhelps collaborated with the Argonne National Laboratory’s Californium Rare Isotope Breeder Upgrade (CARIBU) to electroplate platimum and stainless-steel plates with californium-252 for nuclear fission fragment analysis. PhelpsCARIBU performed(California electrodepositionRare workIsotope withBreeder Cf-252Upgrade) creates beams of californium-252 fission fragments, neutron-rich isotopes, allowing physicists to study the nuclear structure of atoms.

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Clarice Phelps: Dedicated service to science and community

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Phelps was one of the authors on a technical report for the DOE on the separation of plutonium from uranium using hydroxylamine nitrate (HAN) in 2015. It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel. Phelps is an author on a 2019 report for the DOE titled, “Dissolution of Light Curium Oxide with a Catalyzed Electrolytic Process". aboutThe theirreport includes research on a method to improve the curium feed material for more efficient production of transcurium elements and isotopes such as berkelium-249 and californium-252 (Cf-252).

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Colleagues at the Joint Institute for Nuclear Research in Russia used the purified berkelium-249 to create and confirm the existence of tennessine. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48. Tennessine is called a super-heavy element since its atomic number is 100 or higher, meaning it has 100 or more protons in its nuclei. Tennessine formed when calcium with atomic number 20 and berkelium with atomic number 97 fused to make an element with 117 protons in its nuclei. Researchers are interested in superheavy elements to understand the limits of existence of matter.

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Researchers are interested in superheavy elements to understand the limits of existence of matter. Phelps is mentioned in the book Superheavy: Making and Breaking the Periodic Table by Kit Chapman. She is thought to be the first African American woman to help discover an element.

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Colleagues at the Joint Institute for Nuclear Research in Russia used the purified berkelium-249 to create and confirm the existence of tennessine. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48. Tennessine is called a super-heavy element since its atomic number is 100 or higher, meaning it has 100 or more protons in its nuclei. Tennessine formed when calcium with atomic number 20 and berkelium with atomic number 97 fused to make an element with 117 protons in its nuclei. Researchers are interested in superheavy elements to understand the limits of existence of matter.

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PurificationPhelps participated in the purification of berkelium-249, used to confirm the discovery of element 117, tennessine. Tennessine is a radioactive metal of which only a few atoms of it have ever been made. International Union of Pure and Applied Chemistry (IUPAC) confirmed the discovery by scientists from the Joint Institute for Nuclear Research in Dubna, Russia, the Lawrence Livermore National Laboratory in California, USA, and ORNL.

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ORNL produced berkelium with its nuclear reactor and was the only place that could produce berkelium at significant quantities. Phelps was part of a small team, which included Rose Boll and Shelly Van Cleve, that purified berkelium-249, from a 27 milligram sample. Manipulations were performed inside radiation-proof glove boxes to remove specks of impurity that could interfere with the reaction that would make tennessine and theythe lostteam managed to lose less than a milligram of material in the process. Colleagues at the Joint Institute for Nuclear Research in Russia used the purified berkelium-249 to create the new element and confirm the existence of tennessine. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48.

Colleagues at the Joint Institute for Nuclear Research in Russia used the purified berkelium-249 to create and confirm the existence of tennessine. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48. Tennessine is called a super-heavy element since its atomic number is 100 or higher, meaning it has 100 or more protons in its nuclei. Tennessine formed when calcium with atomic number 20 and berkelium with atomic number 97 fused to make an element with 117 protons in its nuclei.

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Phelps was one of the authors on a technical report for the DOE on the separation of plutonium from uranium using hydroxylamine nitrate (HAN) in 2015. It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel. Phelps is an author on a 2019 report for the DOE titled, “Dissolution of Light Curium Oxide with a Catalyzed Electrolytic Process.” This reportProcess outlinesabout their research on a method to improve the production of transcurium elements and isotopes.

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Clarice Phelps

Clarice Evone Phelps (née Salone) is an American chemist and researcher at Oak Ridge National Laboratory. She was part of the team involved with the discovery of element 117, Tennessine. SheHer studiesresearch includes actinide and lanthanide separations for medical use isotopes.

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Phelps joined Oak Ridge National Laboratory (ORNL) as a nuclear operation technician in 2009. ORNL is a research laboratory managed by UT-Battelle, LLC, for the U.S. Department of Energy (DOE) which is primarily a facility for open research with user facilities available to researchers from other national labs, academia and industry. Phelps is program manager for the nickel-63 and selenium-75 industrial use isotope programs. Nickel-63 is used for detecting explosives and in some electronic devices such as surge protectors. Selenium-75 is used in medical imaging. Phelps also performs research on separation and anaysisanalysis of of elements such as europium, samarium, actinium and lanthanum in the Medical, Industrial and Research Isotopes Group (MIRIG).

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She is an alumna of the Tennessee Aquatic Project, a youth basebased organization that provides at-risk and inner city youth personal development tools and uses aquatics and travel as incentives.

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Phelps is one of the authors on a technical report for the DOE on the separation of plutonium from uranium using hydroxylamine nitrate (HAN). It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel.

Phelps was one of the authors on a technical report for the DOE on the separation of plutonium from uranium using hydroxylamine nitrate (HAN) in 2015. It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel. Phelps is an author on a 2019 report for the DOE titled, “Dissolution of Light Curium Oxide with a Catalyzed Electrolytic Process.” This report outlines their research on a method to improve the production of transcurium elements and isotopes.

Meredith Hanel
Meredith Hanel edited on 4 May, 2019
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Phelps joined Oak Ridge National Laboratory (ORNL) as a nuclear operation technician in 2009. ORNL is a research laboratory managed by UT-Battelle, LLC, for the U.S. Department of Energy (DOE) which is primarily a facility for open research with user facilities available to researchers from other national labs, academia and industry. Phelps is program manager for the nickel-63 and selenium-75 industrial use isotope programs. Phelps also performs research on separation and anaysis of of elements such as europium, samarium, actinium and lanthanum in the Medical, Industrial and Research Isotopes Group (MIRIG). Phelps is one of the authors on a technical report on the separation of plutonium from uranium using hydroxylamine nitrate (HAN). It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel.

Phelps is one of the authors on a technical report for the DOE on the separation of plutonium from uranium using hydroxylamine nitrate (HAN). It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel.

Meredith Hanel
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Purification of berkelium-249, used to confirm the discovery of element 117, tennessine. Tennessine is a radioactive metal andof which only a few atoms of it have ever been made. International Union of Pure and Applied Chemistry (IUPAC) confirmed the discovery by scientists from the Joint Institute for Nuclear Research in Dubna, Russia, the Lawrence Livermore National Laboratory in California, USA, and ORNL. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48. Phelps is mentioned in the book Superheavy: Making and Breaking the Periodic Table by Kit Chapman. Clarice Phelps is thought to be the first African American woman to help discover an element.

Phelps was part of a small team, which included Rose Boll and Shelly Van Cleve, that purified berkelium-249, from a 27 milligram sample. Manipulations were performed inside radiation-proof glove boxes to remove specks of impurity that could interfere with the reaction that would make tennessine and they lost less than a milligram of material in the process. Colleagues at the Joint Institute for Nuclear Research in Russia used the purified berkelium-249 to create the new element and confirm the existence of tennessine. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48.

Phelps is mentioned in the book Superheavy: Making and Breaking the Periodic Table by Kit Chapman. She is thought to be the first African American woman to help discover an element.

...

Phelps works with the graduate chapter of Alpha Kappa AlphaAlpha Kappa Alpha sorority’s toASCEND developprogram which teaches Knoxville high school students about robotics programs for young people. Phelps is on the education committee for, Oakdrones, Ridgecircuitry Nationaland Laboratorycoding. Phelps is a member of the American Chemical Society as well as the Educational Outreach Committee for the NuclearORNL Scienceas andthe Engineeringdiversity Directoratechair for Knox County Schools.

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What it takes to make a superheavy element

April 24, 2019

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Purification of berkelium-249, used to confirm the discovery of element 117, tennessine. Tennessine is a radioactive metal and only a few atoms of it have ever been made. International Union of Pure and Applied Chemistry (IUPAC) confirmed the discovery by scientists from the Joint Institute for Nuclear Research in Dubna, Russia, the Lawrence Livermore National Laboratory in California, USA, and ORNL. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48. Phelps is mentioned in the book Superheavy: Making and Breaking the Periodic Table by Kit Chapman. Clarice Phelps is thought to be the first African American woman to help discover an element.

Clarice Phelps is thought to be the first African American woman to help discover an element.

Meredith Hanel
Meredith Hanel edited on 3 May, 2019
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The Argonne National Laboratory’s Californium Rare Isotope Breeder Upgrade (CARIBU) to electroplate platimum and stainless-steel plates with californium-252 for nuclear fission fragment analysis. Phelps performed electrodeposition work with Cf-252.

Meredith Hanel
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Phelps joined Oak Ridge National Laboratory (ORNL) as a nuclear operation technician in 2009. ORNL is a research laboratory managed by UT-Battelle, LLC, for the U.S. Department of Energy which is primarily a facility for open research with user facilities available to researchers from other national labs, academia and industry. Phelps is program manager for the nickel-63 and selenium-75 industrial use isotope programs. Phelps also performs research on separation and anaysis of of elements such as europium, samarium, actinium and lanthanum in the Medical, Industrial and Research Isotopes Group (MIRIG). Phelps is one of the authors on a technical report on the separation of plutonium from uranium using hydroxylamine nitrate (HAN). It outlines safe methods to decompose HAN in the reprocessing of nuclear fuel.

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The NASA plutionium-238 project, performing work on plutonium and neptunium.

The NASA plutonium-238 project, performing work on plutonium and neptunium. The radioactive decay of Plutonium-238 (Pu-238) produces a steady heat that is used as an electrical power source for U.S. space missions.

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Clarice Phelps is thought to be the first African American woman to help discover an element.

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Phelps was the recipient of the 2017 YWCA Knoxville Tribute to Women in the Women technology, research, and innovation category.

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Phelps was the recipient of the 2017 YWCA Knoxville Tribute to Women in the Women technology, research, and innovation category.

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Science outreach work
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ShePhelps works with the Alpha Kappa Alpha sorority to develop robotics programs for young people. Phelps is on the education committee for Oak Ridge National Laboratory, and has been featured by them as a STEM. exemplar.PhelpsPhelps is a member of the American Chemical Society as well as the Educational Outreach Committee for the Nuclear Science and Engineering Directorate.

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Phelps joined Oak Ridge National Laboratory (ORNL) as a nuclear operation technician in 2009. ORNL is a research laboratory managed by UT-Battelle, LLC, for the U.S. Department of Energy which is primarily a facility for open research with user facilities available to researchers from other national labs, academia and industry. Phelps is program manager for the nickel-63 and selenium-75 industrial use isotope programs. Phelps also performs research on separation and anaysis of of elements such as europium, samarium, actinium and lanthanum in the Medical, Industrial and Research Isotopes Group (MIRIG).

Notable projects to which Phelps has contributed

The Argonne National Laboratory’s Californium Rare Isotope Breeder Upgrade (CARIBU) to electroplate platimum and stainless-steel plates with californium-252 for nuclear fission fragment analysis.

The NASA plutionium-238 project, performing work on plutonium and neptunium.

Purification of berkelium-249, used to confirm the discovery of element 117, tennessine. Tennessine is a radioactive metal and only a few atoms of it have ever been made. International Union of Pure and Applied Chemistry (IUPAC) confirmed the discovery by scientists from the Joint Institute for Nuclear Research in Dubna, Russia, the Lawrence Livermore National Laboratory in California, USA, and ORNL. Tennessine was produced by bombarding atoms of berkelium-249 with ions of calcium-48.

Phelps was the recipient of the 2017 YWCA Knoxville Tribute to Women in the Women technology, research, and innovation category.

She joined Oak Ridge National Laboratory as a nuclear operation technician in 2009. Phelps works in the isotopes group at Oak Ridge National Laboratory, where she is program manager for the Ni-63/ Se-75. In particular, she aided in the purification of Berkelium. In 2010, she was involved in the discovery of Tennessine, element 117, as part of the team that accomplished "the purification of the Bk-249 used to help discover Z=117", Tennessine.Phelps was the recipient of the 2017 YWCA Knoxville Tribute to Women in the Women technology, research, and innovation category. She works with the Alpha Kappa Alpha sorority to develop robotics programs for young people. Phelps is on the education committee for Oak Ridge National Laboratory, and has been featured by them as a STEM exemplar.Phelps is a member of the American Chemical Society as well as the Educational Outreach Committee for the Nuclear Science and Engineering Directorate.

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Early in life Phelps says her interest in science was sparked by receiving and microscope and science-based encyclopedia kit from her mother and kindled by teachers.

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