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Gordon Jarvinen Phones & Addresses

  • Arlington, VA
  • Tucson, AZ
  • 452 Brighton Loop, Los Alamos, NM 87544 (505) 672-9628
  • White Rock, NM

Publications

Isbn (Books And Publications)

Plutonium Futures - The Science: Third Tropical Conference on Plutonium and Actinides Albuquerque, New Mexico 6-10 July 2003

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Author

Gordon D. Jarvinen

ISBN #

0735401403

Us Patents

Methods And Apparatuses For The Development Of Microstructured Nuclear Fuels

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US Patent:
7521007, Apr 21, 2009
Filed:
Oct 4, 2004
Appl. No.:
10/956506
Inventors:
Gordon D. Jarvinen - Los Alamos NM,
David W. Carroll - Los Alamos NM,
David J. Devlin - Santa Fe NM,
Assignee:
The United States of America as represented by the United States Department of Energy - Washington DC
International Classification:
G21C 3/02
G21C 3/58
US Classification:
252636, 252639, 376411, 376412, 264 05
Abstract:
Microstructured nuclear fuel adapted for nuclear power system use includes fissile material structures of micrometer-scale dimension dispersed in a matrix material. In one method of production, fissile material particles are processed in a chemical vapor deposition (CVD) fluidized-bed reactor including a gas inlet for providing controlled gas flow into a particle coating chamber, a lower bed hot zone region to contain powder, and an upper bed region to enable powder expansion. At least one pneumatic or electric vibrator is operationally coupled to the particle coating chamber for causing vibration of the particle coater to promote uniform powder coating within the particle coater during fuel processing. An exhaust associated with the particle coating chamber and can provide a port for placement and removal of particles and powder. During use of the fuel in a nuclear power reactor, fission products escape from the fissile material structures and come to rest in the matrix material.

Preparation Of Nuclear Fuel Composition And Recycling

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US Patent:
20100301288, Dec 2, 2010
Filed:
Jun 1, 2009
Appl. No.:
12/476015
Inventors:
JONATHAN PHILLIPS - Rio Rancho NM,
STEVAN G. PATTILLO - Jemez Springs NM,
JAMES A. VALDEZ - Dixon NM,
GORDON D. JARVINEN - Los Alamos NM,
Assignee:
Los Alamos National Security, LLC - Los Alamos NM
International Classification:
C09K 11/04
US Classification:
252638
Abstract:
A composition is prepared by heating particles of a nuclear fuel material in a metal salt that decomposes below 1000° C. to form a metal oxide. Magnesium nitrate hexahydrate is an example of such a metal salt. A resulting composition includes the particles homogeneously dispersed in a matrix of magnesium oxide. After the composition is used in a nuclear reactor, the now spent composition is removed, cooled, and the matrix is dissolved away from the spent particles, which can be reused in another nuclear fuel composition. The recovered fuel particles also contain some fission products that provide a radiation barrier that discourages theft of the recovered fuel particles.

Separations Of Actinides, Lanthanides And Other Metals

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US Patent:
54096782, Apr 25, 1995
Filed:
Mar 11, 1993
Appl. No.:
8/031053
Inventors:
Barbara F. Smith - Los Alamos NM
Gordon D. Jarvinen - Los Alamos NM
Dale D. Ensor - Cookeville TN
Assignee:
The United States of America as represented by the Department of Energy - Washington DC
International Classification:
C01G 100
C01F 100
US Classification:
423 9
Abstract:
An organic extracting solution comprised of a bis(acylpyrazolone or a substituted bis(acylpyrazolone) and an extraction method useful for separating certain elements of the actinide series of the periodic table having a valence of four from one other, and also from one or more of the substances in a group consisting of hexavalent actinides, trivalent actinides, trivalent lanthanides, trivalent iron, trivalent aluminum, divalent metals, and monovalent metals and also from one or more of the substances in a group consisting of hexavalent actinides, trivalent actinides, trivalent lanthanides, trivalent iron, trivalent aluminum, divalent metals, and monovalent metals and also useful for separating hexavalent actinides from one or more of the substances in a group consisting of trivalent actinides, trivalent lanthanides, trivalent iron, trivalent aluminum, divalent metals, and monovalent metals.

Extractant Composition

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US Patent:
49236300, May 8, 1990
Filed:
Apr 3, 1989
Appl. No.:
7/331775
Inventors:
Barbara F. Smith - Los Alamos NM
Gordon D. Jarvinen - Los Alamos NM
Robert R. Ryan - Los Alamos NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
C09K 300
US Classification:
252184
Abstract:
An organic extracting solution useful for separating elements of the actinide series of the periodic table from elements of the lanthanide series, where both are in trivalent form. The extracting solution consists of a primary ligand and a secondary ligand, preferably in an organic solvent. The primary ligand is a substituted monothio-1,3-dicarbonyl, which includes a substituted 4-acyl-2-pyrazolin-5-thione, such as 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT). The secondary ligand is a substituted phosphine oxide, such as trioctylphosphine oxide (TOPO).

Separation Of Actinides From Lanthanides

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US Patent:
48679518, Sep 19, 1989
Filed:
Mar 31, 1988
Appl. No.:
7/176131
Inventors:
Barbara F. Smith - Los Alamos NM
Gordon D. Jarvinen - Los Alamos NM
Robert R. Ryan - Los Alamos NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
C01F 1700
C07F 500
C01G 5600
B01D 1100
US Classification:
423 9
Abstract:
An organic extracting solution and an extraction method useful for separating elements of the actinide series of the periodic table from elements of the lanthanide series, where both are in trivalent form. The extracting solution consists of a primary ligand and a secondary ligand, preferably in an organic solvent. The primary ligand is a substituted monothio-1,3-dicarbonyl, which includes a substituted 4-acyl-2-pyrazolin-5-thione, such as 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT). The secondary ligand is a substituted phosphine oxide, such as trioctylphosphine oxide (TOPO).

Nuclear Magnetic Resonance Contrast Agents

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US Patent:
57026831, Dec 30, 1997
Filed:
Jan 22, 1991
Appl. No.:
7/643092
Inventors:
Paul H. Smith - Los Alamos NM
James R. Brainard - Los Alamos NM
Gordon D. Jarvinen - Los Alamos NM
Robert R. Ryan - Los Alamos NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
International Classification:
A61B 5055
C07F 500
G01N 2400
US Classification:
424 9361
Abstract:
A family of contrast agents for use in magnetic resonance imaging and a method of enhancing the contrast of magnetic resonance images of an object by incorporating a contrast agent of this invention into the object prior to forming the images or during formation of the images. A contrast agent of this invention is a paramagnetic lanthanide hexaazamacrocyclic molecule, where a basic example has the formula LnC. sub. 16 H. sub. 14 N. sub. 6. Important applications of the invention are in medical diagnosis, treatment, and research, where images of portions of a human body are formed by means of magnetic resonance techniques.

Ion Exchange Polymers For Anion Separations

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US Patent:
56705506, Sep 23, 1997
Filed:
Jun 7, 1995
Appl. No.:
8/476964
Inventors:
Gordon D. Jarvinen - Los Alamos NM
S. Fredric Marsh - Los Alamos NM
Richard A. Bartsch - Lubbock TX
Assignee:
The Regents of the University of California Office of Technology Transfer - Alameda CA
International Classification:
C08F 832
C08F 840
B01J 4106
US Classification:
521 32
Abstract:
Anion exchange resins including at least two positively charged sites and a ell-defined spacing between the positive sites are provided together with a process of removing anions or anionic metal complexes from aqueous solutions by use of such resins. The resins can be substituted poly(vinylpyridine) and substituted polystyrene.
Gordon D Jarvinen from Arlington, VA, age ~71 Get Report