Jason C Lashley

US Patent:

20080185523, Aug 7, 2008

Filed:

Dec 20, 2007

Appl. No.:

11/961815

Inventors:

Jason Charles LASHLEY - Santa Fe NM, US
Cyril P. OPEIL - Chestnut Hill MA, US
James Lawrence SMITH - Los Alamos NM, US

Assignee:

Los Alamos National Laboratory - Los Alamos NM

International Classification:

H01L 37/00
G01J 5/02

US Classification:

2503382, 250340

Abstract:

An apparatus and method are provided for sensing infrared radiation. The apparatus includes a sensor element that is positioned in a magnetic field during operation to ensure a λ shaped relationship between specific heat and temperature adjacent the Curie temperature of the ferroelectric material comprising the sensor element. The apparatus is operated by inducing a magnetic field on the ferroelectric material to reduce surface charge on the element during its operation.

US Patent:

7902517, Mar 8, 2011

Filed:

Jun 18, 2008

Appl. No.:

12/141160

Inventors:

Kiril D. Ianakiev - Los Alamos NM, US
Peter B. Littlewood - Cambridge, GB
Krastan B. Blagoev - Arlington VA, US
Martyn T. Swinhoe - Los Alamos NM, US
James L. Smith - Los Alamos NM, US
Clair J. Sullivan - Los Alamos NM, US
Boian S. Alexandrov - Los Alamos NM, US
Jason Charles Lashley - Santa Fe NM, US

Assignee:

The United States of America as represented by the United States Department of Energy - Washington DC

International Classification:

G01T 3/00

US Classification:

25039001

Abstract:

A neutron detector has a compound of lithium in a single crystal form as a neutron sensor element. The lithium compound, containing improved charge transport properties, is either lithium niobate or lithium tantalate. The sensor element is in direct contact with a monitor that detects an electric current. A signal proportional to the electric current is produced and is calibrated to indicate the neutrons sensed. The neutron detector is particularly useful for detecting neutrons in a radiation environment. Such radiation environment may, e. g. include gamma radiation and noise.