Bruce H Dunham

Deceased

from Gloversville, NY

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Bruce Dunham Phones & Addresses

System And Method For X-Ray Generation By Inverse Compton Scattering
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US Patent:

7310408, Dec 18, 2007
Filed:

Mar 31, 2005
Appl. No.:

11/096488
Inventors:

Robert John Filkins - Niskayuna NY, US
John Scott Price - Niskayuna NY, US
Brian Lee Lawrence - Clifton Park NY, US
Matthew Christian Nielsen - Scotia NY, US
Joseph John Manak - Albany NY, US
Bruce Matthew Dunham - Mequon WI, US
Assignee:

General Electric Company - Niskayuna NY
International Classification:

H05G 2/00
US Classification:

378119
Abstract:

A system for generating a tunable X-ray pulse comprises a first electron beam source configured to direct a first electron pulse of predetermined energy and pulse length towards a first interaction zone, a laser beam source configured to direct a first photon pulse of predetermined energy and pulse length towards the first interaction zone to interact with the first electron pulse. The first interaction produces a substantially monochromatic second photon pulse of higher photon energy directed towards a second interaction zone, and a second electron beam source configured to direct a second electron pulse of predetermined energy and pulse length towards the second interaction zone so that the second interaction produces an X-ray pulse of predetermined energy and pulse length in a cascaded inverse Compton scattering (ICS) configuration.

Method And System For Generating An Electron Beam In X-Ray Generating Devices
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US Patent:

20030002628, Jan 2, 2003
Filed:

Jun 27, 2001
Appl. No.:

09/681931
Inventors:

Colin Wilson - Niskayuna NY, US
Bruce Dunham - Mequon WI, US
John Price - Wauwatosa WI, US
International Classification:

H01J035/14
US Classification:

378/138000, 378/137000, 378/136000
Abstract:

A field emission array electron source () is used to generate an electron beam in a x-ray generating device (). The field emission array operates at room temperature and has a life expectancy in excess of 12,000 hours and provides a robust, efficient emitter for generating an electron beam in a x-ray generating device cathode ().

X-Ray Generation Using Secondary Emission Electron Source
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US Patent:

20080187093, Aug 7, 2008
Filed:

Feb 6, 2007
Appl. No.:

11/671878
Inventors:

John Scott Price - Niskayuna NY, US
Loucas Tsakalakos - Niskayuna NY, US
Pierre-Andre Bui - Clifton Park NY, US
Bruce Matthew Dunham - Ithaca NY, US
International Classification:

H01J 35/06
A61B 6/03
US Classification:

378 19, 378136, 313346 R
Abstract:

A method and apparatus are provided for generating high frequency electromagnetic energy using a secondary emission electron source. An x-ray source is therefore provided having a primary electron emitter, a secondary emission member, and an anode. The primary electron emitter provides a primary electron current directed to the secondary emission member. The secondary emission member then generates a secondary electron current which causes x-ray generation when impinging upon the anode.