Jacob L Yoder

US Patent:

20130285657, Oct 31, 2013

Filed:

Apr 24, 2013

Appl. No.:

13/869705

Inventors:

Andrei N. Matlashov - Los Alamos NM, US
Larry J. Schultz - Los Alamos NM, US
Petr L. Volegov - Los Alamos NM, US
Algis Urbaitis - Albuquerque NM, US
Henrik Sandin - Los Alamos NM, US
Jacob Yoder - Los Alamos NM, US
Stephen Surko - Chevy Chase MD, US

International Classification:

G01R 33/44

US Classification:

324309

Abstract:

Methods for determining the identity of a substance are provided. A classification parameter set is defined to allow identification of substances that previously could not be identified or to allow identification of substances with a higher degree of confidence. The classification parameter set may include at least one of relative nuclear susceptibility (RNS) or an x-ray linear attenuation coefficient (LAC). RNS represents the density of hydrogen nuclei present in a substance relative to the density of hydrogen nuclei present in water. The extended classification parameter set may include T, T, and/or Tas well as at least one additional classification parameter comprising one of RNS or LAC. Values obtained for additional classification parameters as well as values obtained for T, T, and Tcan be compared to known classification parameter values to determine whether a particular substance is a known material.

US Patent:

20200378910, Dec 3, 2020

Filed:

Mar 2, 2020

Appl. No.:

16/806954

Inventors:

- Los Alamos NM, US
Michelle A. Espy - Los Alamos NM, US
Jacob Luther Yoder - Los Alamos NM, US
Derrick C. Kaseman - Los Alamos NM, US
Per Erik Magnelind - Los Alamos NM, US
Algis V. Urbaitis - Los Alamos NM, US
Michael Timothy Janicke - Los Alamos NM, US
Ryszard Michalczyk - Los Alamos NM, US
Jurgen G. Schmidt - Los Alamos NM, US
Pulak Nath - Los Alamos NM, US
Scarlett Widgeon Paisner - Los Alamos NM, US

Assignee:

Triad National Security, LLC - Los Alamos NM

International Classification:

G01N 24/08
G01R 33/383
G01R 33/44
G01R 33/3815
G01R 33/30

Abstract:

A nuclear magnetic resonance (NMR) system is configured to detect chemical threat material. The system comprises a magnet configured to generate a magnetic field of about 300 millitesla or less; and a probe configured to detect nuclear relaxation of at least two nuclei selected from the group consisting of H, F, P and N, and detect the spin density of nuclei selected from the group consisting of H, F, P and N, following excitation.

US Patent:

20200355770, Nov 12, 2020

Filed:

Mar 2, 2020

Appl. No.:

16/806862

Inventors:

- Los Alamos NM, US
Michelle A. Espy - Los Alamos NM, US
Derrick C. Kaseman - Los Alamos NM, US
Jacob Luther Yoder - Los Alamos NM, US
Per Erik Magnelind - Los Alamos NM, US
Algis V. Urbaitis - Los Alamos NM, US
Michael Timothy Janicke - Los Alamos NM, US
Ryszard Michalczyk - Los Alamos NM, US
Jurgen G. Schmidt - Los Alamos NM, US
Pulak Nath - Los Alamos NM, US
Scarlett Widgeon Paisner - Los Alamos NM, US
Tammie Renee Nelson - Los Alamos NM, US

Assignee:

Triad National Security, LLC - Los Alamos NM

International Classification:

G01R 33/44
G01R 33/38
G01R 33/34
G01R 33/30

Abstract:

A nuclear magnetic resonance (NMR) system is configured to detect combinatorial signatures stemming from homonuclear and heteronuclear J-couplings. The system comprises a pre-polarization system, a detector, and NMR electronics, wherein the detector includes an NMR magnet with a magnetic field of strength between 300 mT and 10 μT.