Anthony D Appelhans

US Patent:

6984821, Jan 10, 2006

Filed:

Jun 16, 2004

Appl. No.:

10/870856

Inventors:

Anthony D. Appelhans - Idaho Falls ID, US
John E. Olson - Rigby ID, US
James E. Delmore - Idaho Falls ID, US

Assignee:

Battelle Energy Alliance, LLC - Idaho Falls ID

International Classification:

H01J 49/48
H01J 49/32

US Classification:

250294, 250281, 250282, 250283, 250296, 250298, 250396 R

Abstract:

A mass spectrometer includes a magnetic sector configured to separate a plurality of ion beams, and an electrostatic sector configured to receive the plurality of ion beams from the magnetic sector and increase separation between the ion beams, the electrostatic sector being used as a dispersive element following magnetic separation of the plurality of ion beams. Other apparatus and methods are provided.

US Patent:

7038216, May 2, 2006

Filed:

Dec 23, 2004

Appl. No.:

11/021380

Inventors:

David A. Dahl - Idaho Falls ID, US
Jill R. Scott - Idaho Falls ID, US
Anthony D. Appelhans - Idaho Falls ID, US

Assignee:

Battelle Energy Alliance, LLC - Idaho Falls ID

International Classification:

H01J 27/00

US Classification:

250423R, 250281, 250282, 250288, 250292

Abstract:

Electrostatic shape-shifting ion optics includes an outer electrode that defines an interior region between first and second opposed open ends. A first inner electrode is positioned within the interior region of the outer electrode at about the first open end. A second inner electrode is positioned within the interior region of the outer electrode at about the second open end. A first end cap electrode is positioned at about a first open end of the first inner electrode so that the first end cap electrode substantially encloses the first open end of the first inner electrode. A second end cap electrode is positioned at about a second open end of the second inner electrode so that the second end cap electrode substantially encloses the second open end of the second inner electrode. A voltage source operatively connected to each of the electrodes applies voltage functions to each of the electrodes to produce an electric field within an interior space enclosed by the electrodes.

US Patent:

7518105, Apr 14, 2009

Filed:

Dec 14, 2006

Appl. No.:

11/610609

Inventors:

David A. Dahl - Idaho Falls ID, US
Jill R. Scott - Idaho Falls ID, US
Anthony D. Appelhans - Idaho Falls ID, US
Timothy R. McJunkin - Idaho Falls ID, US
John E. Olson - Rigby ID, US

Assignee:

Battelle Energy Alliance, LLC - Idaho Falls ID

International Classification:

H01J 49/40
H01J 49/00

US Classification:

250286, 250281, 250282, 250299

Abstract:

An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is created between at least a portion of the flow channel and at least a portion of the deflection electrode when an electrostatic potential is placed across the deflection electrode and the flow channel. The ion mobility spectrometer also includes means for producing ions at a position upstream from the leading edge of the deflection electrode, so that ions produced thereby are deflected by the deflection electrode into the non-linear electric field. A detector positioned within the flow channel for detects ions from the non-linear electric field.

US Patent:

7518106, Apr 14, 2009

Filed:

Dec 14, 2006

Appl. No.:

11/610633

Inventors:

David A. Dahl - Idaho Falls ID, US
Jill R. Scott - Idaho Falls ID, US
Anthony D. Appelhans - Idaho Falls ID, US
Timothy R. McJunkin - Idaho Falls ID, US
John E. Olson - Rigby ID, US

Assignee:

Battelle Energy Alliance, LLC - Idaho Falls ID

International Classification:

H01J 49/40
H01J 49/00

US Classification:

250286, 250281, 250282, 250299

Abstract:

An ion mobility spectrometer may include an inner electrode and an outer electrode arranged so that at least a portion of the outer electrode surrounds at least a portion of the inner electrode and defines a drift space therebetween. The inner and outer electrodes are electrically insulated from one another so that a non-linear electric field is created in the drift space when an electric potential is placed on the inner and outer electrodes. An ion source operatively associated with the ion mobility spectrometer releases ions to the drift space defined between the inner and outer electrodes. A detector operatively associated with at least a portion of the outer electrode detects ions from the drift space.

US Patent:

7858950, Dec 28, 2010

Filed:

May 29, 2007

Appl. No.:

11/754898

Inventors:

David A. Dahl - Idaho Falls ID, US
Anthony D. Appelhans - Idaho Falls ID, US

Assignee:

Battelle Energy Alliance, LLC - Idaho Falls ID

International Classification:

G21K 5/04
H01J 49/26

US Classification:

250396R, 250396 ML, 250281, 250282

Abstract:

An EDL includes a case surface and at least one electrode surface. The EDL is configured to receive through the EDL a plurality of ion beams, to generate an electrostatic field between the one electrode surface and either the case surface or another electrode surface, and to increase the separation between the beams using the field. Other than an optional mid-plane intended to contain trajectories of the beams, the electrode surface or surfaces do not exhibit a plane of symmetry through which any beam received through the EDL must pass. In addition or in the alternative, the one electrode surface and either the case surface or the other electrode surface have geometries configured to shape the field to exhibit a less abrupt entrance and/or exit field transition in comparison to another electrostatic field shaped by two nested, one-quarter section, right cylindrical electrode surfaces with a constant gap width.

US Patent:

55061850, Apr 9, 1996

Filed:

Jun 24, 1994

Appl. No.:

8/265489

Inventors:

James E. Delmore - Idaho Falls ID
Anthony D. Appelhans - Idaho Falls ID
Eric S. Peterson - Idaho Falls ID

Assignee:

Lockheed Idaho Technologies Company - Idaho Falls ID

International Classification:

C04B 3550

US Classification:

501152

Abstract:

A rare earth oxide matrix (composition of matter) is formed which emits (upon heating) heavy metal oxide anions (oxyanions) into a gas phase, wherein the anions are emitted with high intensity, and wherein longevity of life of the composition of matter is retained. The matter is formed by blending a major component of a rare earth oxide, Europium oxide (Eu. sub. 2 O. sub. 3) or Ytterbium oxide (Yb. sub. 2 O. sub. 3), with a minor component of a Barium (Ba), Calcium (Ca) or Strontium (Sr) salt of a heavy metal oxyanion. Heavy anions are emitted upon heating the composition of matter to a predetermined temperature of about 800. degree. C.

US Patent:

49688880, Nov 6, 1990

Filed:

Jul 5, 1989

Appl. No.:

7/375442

Inventors:

Anthony D. Appelhans - Idaho Falls ID
David A. Dahl - Idaho Falls ID
James E. Delmore - Idaho Falls ID

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G01N 2300

US Classification:

250306

Abstract:

An apparatus and method for alternating voltage and for varying the rate of extraction during the extraction of secondary particles, resulting in periods when either positive ions, or negative ions and electrons are extracted at varying rates. Using voltage with alternating charge during successive periods to extract particles from materials which accumulate charge opposite that being extracted causes accumulation of surface charge of opposite sign. Charge accumulation can then be adjusted to a ratio which maintains a balance of positive and negative charge emission, thus maintaining the charge neutrality of the sample.

US Patent:

56659660, Sep 9, 1997

Filed:

Sep 29, 1995

Appl. No.:

8/536233

Inventors:

David A. Dahl - Idaho Falls ID
Anthony D. Appelhans - Idaho Falls ID
John E. Olson - Idaho Falls ID

Assignee:

Lockheed Martin Idaho Technologies Company - Idaho Falls ID

International Classification:

B01D 5944
H01J 4900

US Classification:

250281

Abstract:

A current measuring system comprising a current measuring device having a first electrode at ground potential, and a second electrode; a current source having an offset potential of at least three hundred volts, the current source having an output electrode; and a capacitor having a first electrode electrically connected to the output electrode of the current source and having a second electrode electrically connected to the second electrode of the current measuring device.