James Edward Delmore

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:

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:

46492798, Mar 10, 1987

Filed:

Jan 23, 1986

Appl. No.:

6/821202

Inventors:

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:

H01J 2720

US Classification:

250427

Abstract:

A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reeccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200. degree. to 500. degree. for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers.