Abstract: An antenna for a cylindrical body may include a flexible substrate coupled to a cylindrical body; a two symmetrical loop omni-directional antenna comprising at least one antenna trace with a first terminal and a second terminal coupled to the flexible substrate; and an integrated circuit electrically coupled to the first terminal and the second terminal.

Abstract: An antenna for a cylindrical body may include a flexible substrate coupled to a cylindrical body; a two symmetrical loop omni-directional antenna comprising at least one antenna trace with a first terminal and a second terminal coupled to the flexible substrate; and an integrated circuit electrically coupled to the first terminal and the second terminal.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

Abstract: A neutron spectrometer is described. The spectrometer includes a first conversion screen (8) comprising a neutron absorbing material and a phosphor material, a first wavelength-shifting light-guide (14) arranged to receive photons from the phosphor material of the first conversion screen and generate wavelength-shifted photons therefrom and a first photodetector (22) optically coupled to the first wavelength-shifting light-guide and arranged to detect the wave-length-shifted photons. The spectrometer further includes a second conversion screen (12) comprising a neutron absorbing material and a phosphor material, a second wavelength-shifting light-guide (16) arranged to receive photons from the phosphor material of the second conversion screen and generate wavelength-shifted photons there-from, and a second photodetector (24) optically coupled to the second wavelength-shifting light-guide and arranged to detect the wave-length-shifted photons.

Abstract: A radiation detector for neutrons and gamma-rays includes a conversion screen comprising a mixture of a neutron absorbing material, e.g., containing 6Li, and a phosphorescent material, e.g., ZnS(Ag) and a wavelength-shifting light-guide arranged to receive photons emitted from the phosphorescent material and generate wavelength-shifted photons therefrom. The wavelength-shifting light-guide is doped so as to form a gamma-ray scintillator material operable to generate scintillation photons in response to a gamma-ray detection event therein. A photodetector is optically coupled to the wavelength-shifting light-guide and arranged to detect the wavelength-shifted photons and the scintillation photons. Signals from the photodetector are processed to distinguish neutron detection events from gamma-ray detection events.

Abstract: An antenna for a cylindrical body may include a flexible substrate with the antenna on it with a first terminal and a second terminal electrically connected to an integrated circuit, the flexible substrate coupled to the cylindrical body.

Abstract: A neutron spectrometer is described. The spectrometer includes a first conversion screen (8) comprising a neutron absorbing material and a phosphor material, a first wavelength-shifting light-guide (14) arranged to receive photons from the phosphor material of the first conversion screen and generate wavelength-shifted photons therefrom and a first photodetector (22) optically coupled to the first wavelength-shifting light-guide and arranged to detect the wave-length-shifted photons. The spectrometer further includes a second conversion screen (12) comprising a neutron absorbing material and a phosphor material, a second wavelength-shifting light-guide (16) arranged to receive photons from the phosphor material of the second conversion screen and generate wavelength-shifted photons there-from, and a second photodetector (24) optically coupled to the second wavelength-shifting light-guide and arranged to detect the wave-length-shifted photons.

Abstract: A radiation detector for neutrons and gamma-rays is described. The detector includes a conversion screen (4a) comprising a mixture of a neutron absorbing material, e.g. containing 6Li, and a phosphorescent material, e.g. ZnS(Ag) and a wavelength-shifting light-guide (8) arranged to receive photons emitted from the phosphorescent material and generate wavelength-shifted photons therefrom. The wavelength-shifting light-guide is doped so as to form a gamma-ray scintillator material operable to generate scintillation photons in response to a gamma-ray detection event therein. A photodetector (10) is optically coupled to the wavelength-shifting light-guide and arranged to detect the wavelength-shifted photons and the scintillation photons. Signals from the photodetector are processed to distinguish neutron detection events from gamma ray detection events.