KATHLEEN KELLER
Nursing in Newburgh, NY

License number

New York 272398

Personal information

See more information about KATHLEEN KELLER at radaris.com

Name

Address

Phone

Kathleen Keller, age 78

5023 Ontario Center Rd, Walworth, NY 14568

(315) 524-6920

Kathleen Keller, age 81

4 N End, Newburgh, NY 12550

(845) 566-1804

Kathleen Keller, age 65

56 Edgerton St, Rochester, NY 14607

Kathleen Keller

4020 Woodruff Rd, Livonia, NY 14487

Kathleen Keller, age 40

428 Phoenix Ave, Elmira, NY 14904

Professional information

Increased Ion Beam Throughput With Reduced Beam Divergence In A Dipole Magnet

US Patent:

6323493, Nov 27, 2001

Filed:

Aug 26, 1999

Appl. No.:

9/383772

Inventors:

John H. Keller - Newburgh NY
Kathleen J. Keller - Newburgh NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01J 3700

US Classification:

250396ML

Abstract:

Spreading of an ion beam when passing through a dipole magnet is reduced or suppressed by electrostatic ion beam confinement which supplements magnetic confinement which may be provided. The magnetic confinement is enhanced by the provision of a magnetic mirror through concentration and localized increase of the dipole field with a concave profile of the pole pieces faces and/or provision of permanent magnets or localized regions of material of increased permeability to form magnetic cusps. Pitch and geometry of convex portions of the pole piece faces are adjusted to increase the mirror ratio and the location of the maximum mirror field relative to the thickness of a graphite or insulating liner which may be employed. Electrostatic confinement elements in the form of negatively charged electrodes and/or electrically isolated electrodes or insulators which assume a negative charge. Ionization of plasma between the pole pieces may be enhanced by application of a VHF/UHF field having a frequency of about 40 MHz to 100 MHZ or higher.