Brian S Poole

US Patent:

7576499, Aug 18, 2009

Filed:

Oct 24, 2006

Appl. No.:

11/586377

Inventors:

George J. Caporaso - Livermore CA, US
Scott D. Nelson - Patterson CA, US
Brian R. Poole - Tracy CA, US

Assignee:

Lawrence Livermore National Security, LLC - Livermore CA

International Classification:

H05H 9/00

US Classification:

315505, 315507, 315500

Abstract:

A sequentially pulsed traveling wave compact accelerator having two or more pulse forming lines each with a switch for producing a short acceleration pulse along a short length of a beam tube, and a trigger mechanism for sequentially triggering the switches so that a traveling axial electric field is produced along the beam tube in synchronism with an axially traversing pulsed beam of charged particles to serially impart energy to the particle beam.

US Patent:

20190280689, Sep 12, 2019

Filed:

Mar 14, 2016

Appl. No.:

15/069866

Inventors:

- Livermore CA, US
Steve Hawkins - Livermore CA, US
Brian R. Poole - Tracy CA, US

International Classification:

H03K 17/78
H03K 17/16
G02B 6/42
H01L 31/0224
H03K 17/94

Abstract:

Methods, systems, and devices describe bi-triaxial photoconductive switch modules that that eliminate the need for external DC blocking capacitors, while providing a highly compact structure that can produce bipolar output waveforms conducive to feeding to radio-frequency (RF) devices, such as antennas. Some implementations of the disclosed bi-triaxial photoconductive switch modules utilize unified cast-in-place capacitors that can be designed with an appropriate geometry, volume and orientation to provide desired energy storage capacity while eliminating or reducing parasitics.

US Patent:

20190052264, Feb 14, 2019

Filed:

Oct 22, 2018

Appl. No.:

16/167316

Inventors:

- Livermore CA, US
Steve Hawkins - Livermore CA, US
Brian R. Poole - Tracy CA, US

International Classification:

H03K 17/78
H01L 49/02
G02B 6/24
G02B 6/00
H01L 31/09
G02B 6/12

Abstract:

Methods, systems, and devices describe triaxial photoconductive switch modules that include a center conductor, an inner conductor, an outer conductor, a high voltage capacitor that is formed between the center conductor and the inner conductor, and a photoconductive switch that is formed between the center conductor and a section of the outer conductor. The disclosed triaxial photoconductive switch modules include low inductance current paths that lead to high current efficiencies. Furthermore, the disclosed triaxial photoconductive switch modules eliminate or reduce parasitic capacitance problems of existing systems.

US Patent:

20170264291, Sep 14, 2017

Filed:

Mar 14, 2016

Appl. No.:

15/069838

Inventors:

- Livermore CA, US
Steve Hawkins - Livermore CA, US
Brian R. Poole - Tracy CA, US

International Classification:

H03K 17/78
H01L 31/09

Abstract:

Methods, systems, and devices describe triaxial photoconductive switch modules that include a center conductor, an inner conductor, an outer conductor, a high voltage capacitor that is formed between the center conductor and the inner conductor, and a photoconductive switch that is formed between the center conductor and a section of the outer conductor. The disclosed triaxial photoconductive switch modules include low inductance current paths that lead to high current efficiencies. Furthermore, the disclosed triaxial photoconductive switch modules eliminate or reduce parasitic capacitance problems of existing systems.

US Patent:

20150051847, Feb 19, 2015

Filed:

Nov 22, 2011

Appl. No.:

14/359539

Inventors:

Leonard Angello - Mountain View CA, US
Tim Lieuwen - Atlanta GA, US
David Robert Noble - Marietta GA, US
Brian Poole - State College PA, US

Assignee:

ELECTRIC POWER RESEARCH INSTITUTE, INC. - Palo Alto CA

International Classification:

G01M 15/14

US Classification:

702 35

Abstract:

A system and method for anomaly detection is provided. The system () and method () include utilizing one or more processors, such as in a server, for receiving () operational and dynamics data () from sensors associated with devices (), filtering the data, establishing a set of baseline dynamics data and eliminating data dependencies (). The system and method further include generating an expected level of data variation (), identifying an anomaly based on a deviation of the device data from the baseline data normalized by the expected level of data variation (), optionally correlating an anomaly with potential causes, and providing an output indicating an anomaly ().

US Patent:

20140265940, Sep 18, 2014

Filed:

Mar 15, 2013

Appl. No.:

13/842597

Inventors:

- Livermore CA, US
Brian R. Poole - Livermore CA, US
Steven A. Hawkins - Livermore CA, US

International Classification:

H05H 5/02

US Classification:

315506

Abstract:

The devices, systems and techniques disclosed here can be used to reduce undesired effects by magnetic field induced eddy currents based on a diamagnetic composite material structure including diamagnetic composite sheets that are separated from one another to provide a high impedance composite material structure. In some implementations, each diamagnetic composite sheet includes patterned conductor layers are separated by a dielectric material and each patterned conductor layer includes voids and conductor areas. The voids in the patterned conductor layers of each diamagnetic composite sheet are arranged to be displaced in position from one patterned conductor layer to an adjacent patterned conductor layer while conductor areas of the patterned conductor layers collectively form a contiguous conductor structure in each diamagnetic composite sheet to prevent penetration by a magnetic field.