Abstract: A thermal imaging device is provided for converting an image in the terahertz radiation range to the visible range. In one embodiment, the device includes a converter having a thermochromic liquid crystal layer mounted on a sapphire base. In another embodiment, the device includes a thermal absorption layer including a metal selected from the group of iron, aluminum, tin, and copper. In a further embodiment, the device has an light source shaped as an annulus for illuminating a rearward surface of the converter, configured to permit visible light rays to pass through the annulus for capture by a digital detector. In a final embodiment, the device has a thermal adjustment device for adjusting the temperature of the thermochromic liquid crystal layer to an optimal temperature.
Type:
Grant
Filed:
January 30, 2007
Date of Patent:
July 27, 2010
Assignee:
Radiabeam Technologies, LLC
Inventors:
Gerald Andonian, Salime M. Boucher, Pedro E. Frigola, Alex Y. Murokh, Timur Shaftan, Gil Travish
Abstract: In an electron accelerator, a conductive housing defines a cavity. Photoelectrons are emitted from a photocathode into the cavity when light is applied to the photocathode. Via an opening formed in a wall of the conductive housing, the photoelectrons are output to the outside of the cavity. Coolant is flowed through a flow path formed in the wall of the conductive housing, to suppress a temperature rise of the conductive housing. The wall of the conductive housing is made by a metal additive manufacturing technique in such a way as to produce a flow path that has a gentle trajectory without discontinuities in gradient.
Type:
Grant
Filed:
November 30, 2006
Date of Patent:
August 12, 2008
Assignee:
Radiabeam Technologies LLC
Inventors:
Ronald B. Agustsson, Salime M. Boucher, Pedro E. Frigola, Alex Y. Murokh, James B. Rosenzweig, Gil Travish
Abstract: A thermal imaging device is provided for converting an image in the terahertz radiation range to the visible range. In one embodiment, the device includes a converter having a thermochromic liquid crystal layer mounted on a sapphire base. In another embodiment, the device includes a thermal absorption layer including a metal selected from the group of iron, aluminum, tin, and copper. In a further embodiment, the device has an light source shaped as an annulus for illuminating a rearward surface of the converter, configured to permit visible light rays to pass through the annulus for capture by a digital detector. In a final embodiment, the device has a thermal adjustment device for adjusting the temperature of the thermochromic liquid crystal layer to an optimal temperature.
Type:
Application
Filed:
January 30, 2007
Publication date:
July 31, 2008
Applicant:
RADIABEAM TECHNOLOGIES, LLC
Inventors:
GERALD ANDONIAN, SALIME M. BOUCHER, PEDRO E. FRIGOLA, ALEX Y. MUROKH, TIMUR SHAFTAN, GIL TRAVISH
Abstract: In an electron accelerator, a conductive housing defines a cavity. Photoelectrons are emitted from a photocathode into the cavity when light is applied to the photocathode. Via an opening formed in a wall of the conductive housing, the photoelectrons are output to the outside of the cavity. Coolant is flowed through a flow path formed in the wall of the conductive housing, to suppress a temperature rise of the conductive housing. The wall of the conductive housing is made by a metal additive manufacturing technique in such a way as to produce a flow path that has a gentle trajectory without discontinuities in gradient.
Type:
Application
Filed:
November 30, 2006
Publication date:
June 5, 2008
Applicant:
RADIABEAM TECHNOLOGIES, LLC
Inventors:
RONALD B. AGUSTSSON, SALIME M. BOUCHER, PEDRO E. FRIGOLA, ALEX Y MUROKH, JAMES B ROSENZWEIG, GIL TRAVISH