RICHARD LEE SHEFFIELD
Pilots at Ridgecrest Ave, Los Alamos, NM
License number
New Mexico A5005687
Issued Date
Jun 2015
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
323 Ridgecrest Ave, Los Alamos, NM 87544
Personal information
See more information about RICHARD LEE SHEFFIELD at radaris.comName
Address
Phone
323 Ridgecrest Ave, Los Alamos, NM 87544
323 Ridgecrest Ave, Los Alamos, NM 87544
Professional information
Optically Pulsed Electron Accelerator
US Patent:
4715038, Dec 22, 1987
Filed:
May 20, 1985
Appl. No.:
6/736033
Inventors:
John S. Fraser - Los Alamos NM
Richard L. Sheffield - Los Alamos NM
Richard L. Sheffield - Los Alamos NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
Department of Energy - Washington DC
International Classification:
H01S 300
US Classification:
372 2
Abstract:
An optically pulsed electron accelerator can be used as an injector for a free electron laser and comprises a pulsed light source, such as a laser, for providing discrete incident light pulses. A photoemissive electron source emits electron bursts having the same duration as the incident light pulses when impinged upon by same. The photoemissive electron source is located on an inside wall of a radio frequency powered accelerator cell which accelerates the electron burst emitted by the photoemissive electron source.
Self-Seeded Injection-Locked Fel Amplifer
US Patent:
5960013, Sep 28, 1999
Filed:
Mar 30, 1998
Appl. No.:
9/050121
Inventors:
Richard L. Sheffield - Los Alamos NM
Assignee:
The United States of America as represented by the United States
Department of Energy - Washington DC
Department of Energy - Washington DC
International Classification:
H01S 300
US Classification:
372 2
Abstract:
A self-seeded free electron laser (FEL) provides a high gain and extraction efficiency for the emitted light. An accelerator outputs a beam of electron pulses to a permanent magnet wiggler having an input end for receiving the electron pulses and an output end for outputting light and the electron pulses. An optical feedback loop collects low power light in a small signal gain regime at the output end of said wiggler and returns the low power light to the input end of the wiggler while outputting high power light in a high signal gain regime.
Interrogating Hidden Contents Of A Container
US Patent:
7970103, Jun 28, 2011
Filed:
Jun 5, 2009
Appl. No.:
12/455694
Inventors:
Michael V. Hynes - Cambridge MA, US
Bernard Harris - Waltham MA, US
Brandon Blackburn - Idaho Falls ID, US
John E. McElroy - North Andover MA, US
Richard C. Lanza - Brookline MA, US
Timothy A. Antaya - Hampton Falls NH, US
Richard Sheffield - Los Alamos NM, US
John T. Mihalczo - Oak Ridge TN, US
Paul A. Hausladen - Oak Ridge TN, US
Alan W. Hunt - Pocatello ID, US
Hugh R. Andrews - Pembroke CA, US
James Johnson - Rigby ID, US
Bernard Harris - Waltham MA, US
Brandon Blackburn - Idaho Falls ID, US
John E. McElroy - North Andover MA, US
Richard C. Lanza - Brookline MA, US
Timothy A. Antaya - Hampton Falls NH, US
Richard Sheffield - Los Alamos NM, US
John T. Mihalczo - Oak Ridge TN, US
Paul A. Hausladen - Oak Ridge TN, US
Alan W. Hunt - Pocatello ID, US
Hugh R. Andrews - Pembroke CA, US
James Johnson - Rigby ID, US
Assignee:
Raytheon Company - Waltham MA
International Classification:
G01N 23/04, H05G 1/52, H01J 35/30
US Classification:
378 57, 378113, 378137
Abstract:
According to one embodiment, a system for interrogating hidden contents of a container comprises a controller, a detector system, and a data system. The controller receives a selection of a source mode of source radiation to generate to interrogate contents of a container. The source mode selection comprises a neutron mode, a gamma ray mode, or a combined neutron-gamma ray mode. The controller instructs a cyclotron to generate the source radiation according to the source mode selection. The detector system detects radiation emitted from the contents in response to the source radiation. The data system analyzes the emitted radiation and describes the contents according to the analysis.