David A Mcdaniel

US Patent:

8269177, Sep 18, 2012

Filed:

Feb 28, 2010

Appl. No.:

12/714529

Inventors:

Chang Lyong Kim - Niskayuna NY, US
David McDaniel - Dousman WI, US

Assignee:

General Electric Company - Niskayuna NY

International Classification:

G01T 1/166

US Classification:

25036304, 250367

Abstract:

A method and apparatus for producing a PET image of a tissue using a PET scanner that includes scintillation crystals and detectors. A first crystal group including a first subset of crystals is formed, and a second crystal group including a second subset of the crystals is formed. The crystals in the first crystal group are different from crystals in the second crystal group A first beam striking one or more crystals of the first crystal group is converted to a first electrical signal, while a second beam striking one or more crystals of the second crystal group is converted to a second electrical signal, wherein the second beam is scattered from the first beam. The second electrical signal is corrected using a correction factor derived from at least one of a first and second timing relationships to compensate for energy in the second signal scattered from the first signal. An image of the tissue is created using the corrected second electrical signal.

US Patent:

20160308074, Oct 20, 2016

Filed:

Apr 16, 2015

Appl. No.:

14/688008

Inventors:

- SCHENECTADY NY, US
Jianjun Guo - Ballston Spa NY, US
David Leo McDaniel - Dousman WI, US
Ravindra Mohan Manjeshwar - Glenville NY, US
Geng Fu - Rexford NY, US

International Classification:

H01L 31/02
H01L 31/10

Abstract:

Embodiments of a solid state photomultiplier are provided herein. In some embodiments, a solid state photomultiplier may include a plurality of pixels, wherein each pixel of the plurality of pixels comprises a plurality of subpixels; and a first set of buffer amplifiers, wherein each buffer amplifier of the first set of buffer amplifiers is respectively coupled to a subpixel of the plurality of subpixels.

US Patent:

20160084970, Mar 24, 2016

Filed:

Sep 11, 2015

Appl. No.:

14/851518

Inventors:

- Schenectady NY, US
Sergei Ivanovich Dolinsky - Clifton Park NY, US
David Leo McDaniel - Dousman WI, US
Jonathan David Short - Saratoga Springs NY, US

International Classification:

G01T 1/24

Abstract:

Embodiments of a solid state photomultiplier are provided herein. In some embodiments, a photosensor may include a sensing element; and readout electronics, wherein the sensing element is AC coupled to the readout electronics. In some embodiments, a solid state photomultipler may include a microcell having; a sensing element; and readout electronics, wherein the sensing element is AC coupled to the readout electronics.

US Patent:

20140224963, Aug 14, 2014

Filed:

Feb 12, 2013

Appl. No.:

13/764960

Inventors:

- Schenectady NY, US
Sergei Ivanovich Dolinsky - Clifton Park NY, US
Changlyong Kim - Brookfield WI, US
James Lindgren Malaney - Waukesha WI, US
David Leo McDaniel - Dousman WI, US
William Peterson - Sussex WI, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

G01T 1/29

US Classification:

2502081

Abstract:

A multichannel application specific integrated circuit (ASIC) for interfacing with an array of photodetectors in a positron emission tomography (PET) imaging system includes a front end circuit configured to be coupled to the photodetectors and to receive discrete analog signals therefrom. The ASIC further includes a time discriminating circuit operably coupled to the front end circuit and configured to generate a hit signal based on a combination of the discrete analog signals, and an energy discriminating circuit operably coupled to the front end circuit and configured to generate a summed energy output signal based on each of the discrete analog signals and summed row and column output signals based on each of the discrete analog signals. The summed energy output signal represents an energy level of the detected radiation in the array of photodetectors, and the summed row and column output signals represent a location of the detected radiation.