General Electric Company

Momentive Performance Materials Gmbh

Lucas Clarke

Robert Jett

Steven Jude Duclos

Alok Mani Srivastava

Holly Ann Comanzo

Venkat Subramaniam Venkataramani

Sergio Paulo Martins Loureiro

Thomas Francis McNulty

Adrian Ivan

Kevin Paul McEvoy

Eric Martin Weissman

James Richard Williams

Qun Deng

Keith David Jones

Thomas Robert Anderson

Brian Marshall Palmer

Carl Joshua Vess

Patricia A Hubbard

A method of making a cubic halide scintillator material includes pressing a powder mixture of cubic halide and at least one activator under conditions of pressure, temperature, residence time and particle size effective to provide a polycrystalline sintered cubic halide scintillator having a pulse height resolution of from about 7% to about 20%. The conditions include a temperature ranging from about ambient temperature up to about 90% of the melting point of the cubic halide, a pressure of from about 30,000 psi to about 200,000 psi, a pressing residence time of from about 5 minutes to about 120 minutes and an average cubic halide particle size of from about 60 micrometers to about 275 micrometers.

Method for making sintered cubic halide scintillator material

A scintillator composition is described, including a matrix material and an activator. The matrix material includes at least one lanthanide halide compound. The matrix can also include at least one alkali metal, and in some embodiments, at least one alkaline earth metal. The composition also includes a praseodymium activator for the matrix. Radiation detectors that include the scintillators are disclosed. A method for detecting high-energy radiation with a radiation detector is also described.

Scintillator compositions based on lanthanide halides, and related methods and articles

A radiation detector assembly is provided. The radiation detector assembly includes a radiation detector element and a light detection element operationally connected to the radiation detector element. The radiation detector element is seated within a housing. The assembly also includes a plurality of continuous wave formed springs located along the outer periphery of the radiation detector element, radially between the housing and the radiation detector element.

Ruggedized radiation detector

A radiation detector includes a pressure-tight housing having a peripheral, cylindrically-shaped wall and opposite end closures. An electrode wire extends through a center of the housing, spaced from the cylindrically-shaped wall. A pressurized detector gas fills the housing, and circuit connections to the electrode wire and the housing permits application of an electric potential thereto. The electrode wire is composed of a material providing a source of alpha particles for ionizing the gas within the housing, generating an alpha peak on the output spectrum distinct from the peak generated by incident neutrons. A related method is also disclosed.

He-3 neutron proportional counter with internal leakage detection and related method

A sensor for use in monitoring electrochemical potentials, includes (a) a crucible made of ceramic material having a closed end and an open end, the close end containing metal/metal oxide powder mixture retained therein by mineral insulating packing, the open end having a metallized band fired in the ceramic material; (b) an annular metal sleeve formed of a metal exhibiting a coefficient of thermal expansion compatible with the crucible, and having a distal open end brazed to the open end of the crucible, and a proximal open end; (c) an insulated electrical conductor having a distal end in electrical connection with the metal/metal oxide powder and extending through the mineral insulation packing and into the first annular sleeve, and having a proximal end terminating near the proximal open end of the annular sleeve; and (d) a signal transfer assembly sealingly associated with the proximal end of the annular sleeve including an electrical cable connected to the electrical conductor.

Ceramic electrochemical corrosion potential sensor probe with increased lifetime

A water monitoring system for a nuclear reactor is provided. In an exemplary embodiment, the water monitoring system includes a fiber optic cable having a first end and a second end, with the first end configured to optically couple to the reactor cooling water distribution system, and at least one laser light source optically coupled to the second end of the fiber optic cable. The water monitoring system also includes a spectrophotometer optically coupled to the second end of the fiber optic cable.

Laser induced fluorescence water measurement system for nuclear reactors

An electrochemical corrosion potential sensor electrode is formed with a zircalloy electrode tip having a closed end and an open end, the open end secured to a ceramic insulator, with a conductor wire extending through the insulator into the electrode tip.

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Brussels, Belgium

Lucas Clarke