Abstract: A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.

Abstract: A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.

Abstract: Devices may include a scintillation detection device including a scintillator, a photon detector at least partially enclosed by the scintillator, and at least one reflector at least partially enclosing the scintillator. In another aspect, an oilfield wellbore device may include an oilfield string with at least one scintillation detection device on the string and a pressure housing enclosing the one or more scintillation detection devices. In another aspect, a method of measuring radiation in an oil and gas well may include conveying at least one scintillation detection device to at least one zone of interest in the oil and gas well and recording data from at least one scintillation detection device as a function of location in the well.

Abstract: A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.

Abstract: Devices may include a scintillation detection device including a scintillator, a photon detector at least partially enclosed by the scintillator, and at least one reflector at least partially enclosing the scintillator. In another aspect, an oilfield wellbore device may include an oilfield string with at least one scintillation detection device on the string and a pressure housing enclosing the one or more scintillation detection devices. In another aspect, a method of measuring radiation in an oil and gas well may include conveying at least one scintillation detection device to at least one zone of interest in the oil and gas well and recording data from at least one scintillation detection device as a function of location in the well.

Abstract: A radiation detector package includes a support apparatus at least part of which is constructed from a naturally occurring radioactive material. A scintillator is associated with the support apparatus. The support may include a detector housing carrying a photodetector and the scintillator, and the detector housing may be constructed from the naturally occurring radioactive material.

Abstract: A scintillator detector package includes a housing, with a scintillator in the housing. There is a radioactive reflective material between at least a portion of the scintillator and the housing. The radioactive reflective material may be a naturally occurring material, such as Lu2O3, and may be in powdered form. A photodetector may be optically coupled to the scintillator package, and gain stabilization circuitry may perform gain stabilization based upon detecting scintillations of the scintillator caused by radiation emitted by the radioactive reflective material striking the scintillator.

Abstract: A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.

Abstract: A neutron detector is provided which may include a neutron converting layer, and a scintillator layer adjacent the neutron converting layer. The neutron detector may further include a photomultiplier adjacent the scintillator layer. By way of example, the neutron detector may be used in a well logging apparatus to determine a neutron flux incident upon the neutron converting layer, and thereby determine the neutron porosity of a geological formation around a wellbore.

Abstract: A radiation detector package includes a support apparatus at least part of which is constructed from a naturally occurring radioactive material. A scintillator is associated with the support apparatus. The support may include a detector housing carrying a photodetector and the scintillator, and the detector housing may be constructed from the naturally occurring radioactive material.

Abstract: A scintillator detector package includes a housing, with a scintillator in the housing. There is a radioactive reflective material between at least a portion of the scintillator and the housing. The radioactive reflective material may be a naturally occurring material, such as Lu2O3, and may be in powdered form. A photodetector may be optically coupled to the scintillator package, and gain stabilization circuitry may perform gain stabilization based upon detecting scintillations of the scintillator caused by radiation emitted by the radioactive reflective material striking the scintillator.

Abstract: A scintillator package includes a housing, with a scintillator in the housing to scintillate when struck by radiation. A window seals an end of the housing to permit light emitted during a scintillation to exit the housing. The window comprises a radioactive material that is non-scintillating, and this radioactive material may be naturally occurring, such as lutetium.

Abstract: A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses.

Abstract: A wireless charging system includes a primary inductive coil configured to transfer electromagnetic energy to a secondary inductive coil of a portable electronic device. The wireless charging system also includes a coil driver electrically coupled to the primary inductive coil and configured to adjust an output signal of the primary inductive coil. The wireless charging system further includes a receiver configured to receive an input signal from the portable electronic device, and a controller communicatively coupled to the receiver and to the coil driver. The controller is configured to establish a wireless charging protocol based on the input signal, and to automatically regulate the output signal based on the established wireless charging protocol and the input signal.

Abstract: A neutron detector is provided which may include a neutron converting layer, and a scintillator layer adjacent the neutron converting layer. The neutron detector may further include a photomultiplier adjacent the scintillator layer. By way of example, the neutron detector may be used in a well logging apparatus to determine a neutron flux incident upon the neutron converting layer, and thereby determine the neutron porosity of a geological formation around a wellbore.

Abstract: A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses.

Abstract: A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses.

Abstract: A radiation detector operating at high temperatures is shown comprising a scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented toward the electron multiplier. Depositing the photocathode directly on the surface greatly decreases photon loss which is a problem of prior art systems. In a preferred embodiment, a metal flange is hermetically sealed to the scintillating material and this is fusion welded to the electron multiplier to create a vacuum envelope. This invention is particularly useful in noisy environments such as downhole in a drilling operation.

Abstract: A radiation detector operating at high temperatures is shown comprising a scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented toward the electron multiplier. Depositing the photocathode directly on the surface greatly decreases photon loss which is a problem of prior art systems. In a preferred embodiment, a metal flange is hermetically sealed to the scintillating material and this is fusion welded to the electron multiplier to create a vacuum envelope.

Abstract: A radiation detector operating at high temperatures is shown comprising a LuAP scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented toward the electron multiplier. In a preferred embodiment, a metal flange is hermetically sealed to the scintillating material and this is fusion welded to the electron multiplier to create a vacuum envelope. This invention is particularly useful in high temperature noisy environments such as downhole operations to detect radiation within a well hole.