Raytheon Company

Her Majesty the Queen in Right of Canada, As Represented by the Minister of National Defence of Her Majesty's Canadian Government

Bubble Technology Industries Inc.

Edward T H Clifford

Harry Ing

Hugh Robert Andrews

Vernon Theodore Koslowsky

Darren Adam Locklin

David A Palmer

Richard C Lanza

Larry Joe Schultz

Liqian Li

Bernard Harris

Michael V Hynes

Marius Facina

Daniel T Wakeford

Martin Bernard Smith

Irina Stefania Stefanescu

Shawn Robert Tornga

Andrew Hoover

Richard M Kippen

Dean S Haslip

Thomas Cousins

Eugene E Lednum

Mark S Wallace

The Microstructure Photomultiplier Assembly (MPA) enables the effective conversion of light signals (received at the front of the assembly) into readily-detectable electrical signals. The MPA comprises a photocathode, followed by an electron-multiplying plate(s) made from an insulating substrate which does not emit sufficient contaminants to poison the photocathode. Each plate is coated with a conductive layer. The front face of each plate is further coated with a layer of secondary electron-emissive material which, when struck by an incoming electron, can produce secondary electrons. Each plate is perforated with channels. The channels are designed to promote the efficient transfer and acceleration of electrons through the channels, under an applied voltage differential across the plate(s). An anode (pixelated or non-pixelated) at the end of the last plate collects the electrons and generates an electrical signal. The MPA is contained within a vacuum enclosure.

Microstructure photomultiplier assembly

According to one embodiment, generating image data includes receiving coded aperture imaging sensor data collected according to coded aperture imaging and receiving Compton imaging sensor data collected according to Compton imaging. The coded aperture imaging sensor data and the Compton imaging sensor data are generated by a sensor system sensing radiation from a radiation source. A coded aperture imaging pixel value and a Compton imaging pixel value are determined for each pixel of an image. A combining function comprising addition is applied to the coded aperture imaging pixel value and the Compton imaging pixel value to yield a combined pixel value for each pixel. Combined image data is generated from the combined pixel values. The combined image data is configured to yield a combined image of the radiation source.

Multimodal radiation imager

A sensor for detecting the radio-luminescence created by radioactive sources includes a telescope, a plurality of UV sensitive cameras, and an optical system in the optical path of the telescope for directing images to the cameras. The cameras simultaneously obtain images from a plurality of spectral bands covering strong transitions of N2 molecule created by the radioactive source and at least one spectral band containing very little transition strength (a background band). The background image is used to assess the background level for the other spectral bands. The images are then fused digitally to create one image of the radio-luminescence.

Standoff radiation imaging detector

Growing community of inventors

Deep River, Canada

Edward T H Clifford