This application discloses a method and an apparatus for processing a nuclear energy spectrum. The apparatus includes: a detector, a nuclear pulse processing module, and a nuclear energy spectrum processing module; the detector is configured to detect nuclear radiation and convert the nuclear radiation into nuclear pulse signals with corresponding amplitudes; the nuclear pulse processing module is configured to shape the nuclear pulse signals into narrow pulses, and perform amplitude analysis on the narrow pulses to generate the nuclear energy spectrum; the nuclear energy spectrum processing module is configured to reduce a value of an energy resolution of the nuclear energy spectrum to obtain the nuclear energy spectrum with the energy resolution of the reduced value.

The active neutron spectrometer (1) comprises a polyhedral moderator body (2) of hydrogenated material having a first, a second and a third orthogonal main axis (X.sub.1, X.sub.2; Y.sub.1, Y.sub.2; Z.sub.1, Z.sub.2), a first series of thermal neutron detectors (3.sub.a1, 3.sub.a2, 3.sub.a3, 3.sub.a4, 3.sub.a5, 3.sub.a6, 3.sub.b1, 3.sub.b2, 3.sub.b3, 3.sub.b4, 3.sub.b5, 3.sub.b6) arranged along the first main axis (X.sub.1, X.sub.2), a second series of thermal neutron detectors (4.sub.a1, 4.sub.a2, 4.sub.a3, 4.sub.a4, 4.sub.a5, 4.sub.a6, 4.sub.b1, 4.sub.b2, 4.sub.b3, 4.sub.b4, 4.sub.b5, 4.sub.b6) arranged along the second main axis (Y.sub.1, Y.sub.2), and a third series of thermal neutron detectors (5.sub.a1, 5.sub.a2, 5.sub.a3, 5.sub.a4, 5.sub.a5, 5.sub.a6, 5.sub.b1, 5.sub.b2, 5.sub.b3, 5.sub.b4, 5.sub.b5, 5.sub.b6) arranged along the third main axis (Z.sub.1, Z.sub.2).

Systems and methods for neutron detection using tensioned metastable fluid detectors, using multi-atom spectroscopy approach.

This application discloses a method and an apparatus for processing a nuclear energy spectrum. The apparatus includes: a detector, a nuclear pulse processing module, and a nuclear energy spectrum processing module; the detector is configured to detect nuclear radiation and convert the nuclear radiation into nuclear pulse signals with corresponding amplitudes; the nuclear pulse processing module is configured to shape the nuclear pulse signals into narrow pulses, and perform amplitude analysis on the narrow pulses to generate the nuclear energy spectrum; the nuclear energy spectrum processing module is configured to reduce a value of an energy resolution of the nuclear energy spectrum to obtain the nuclear energy spectrum with the energy resolution of the reduced value.

A system for charged particle therapy verification, comprising a first detector configured for detection of secondary particles emitted from a target irradiated with a charged particle beam, wherein the detector is configured to cause at least two consecutive elastic scatters in the detector for secondary particles of fast neutrons and two consecutive incoherent scatters followed by a third scatter, being one of: photoelectric effect, incoherent scatter or pair production for secondary particles of prompt gamma-ray types.

A device for measuring the energy of neutrons incident in a first direction is provided. The device comprises a gas between a cathode and an anode, the anode comprising a matrix array of electron detectors, the first direction being orthogonal to the anode-cathode direction.

A method for a multielement analysis via neutron activation. The method includes generating fast neutrons with an energy in the range of 10 keV to 20 MeV and moderating the neutrons, irradiating the sample with the neutrons, and measuring the gamma radiation emitted by the irradiated sample using a detector to determine at least one element of the sample. The sample continuously irradiated in a non-pulsed fashion. The measurement is implemented during the irradiation. The determination of the at least one element includes an evaluation of the measured gamma radiation. The sample is subdivided into individual partitions and the measurement is implemented using a collimator. The evaluation includes a spatially resolved and energy-resolved determination of the neutron flux within the respective partition of the sample and calculation of energy-dependent photopeak efficiencies and neutron flux and neutron spectrum within a single partition of the sample by an approximation method.

Systems and methods for neutron detection using tensioned metastable fluid detectors, using multi-atom spectroscopy approach.

A sensor device for detecting fissile material in a nuclear reactor is disclosed. The device comprises an ion source, a converter, and a detector. The ion source is adapted to generate an ion or electron beam. The converter receives the generated ion or electron beam and is adapted to utilize the ions to generate a neutron beam and to emit the neutron beam. The detector is adapted to receive the neutron beam after the neutron beam has passed the fissile material and to provide a spectrum of neutrons of the received neutron beam.

The active neutron spectrometer (1) comprises a polyhedral moderator body (2) of hydrogenated material having a first, a second and a third orthogonal main axis (X.sub.1, X.sub.2; Y.sub.1, Y.sub.2; Z.sub.1, Z.sub.2), a first series of thermal neutron detectors (3.sub.a1, 3.sub.a2, 3.sub.a3, 3.sub.a4, 3.sub.a5, 3.sub.a6, 3.sub.b1, 3.sub.b2, 3.sub.b3, 3.sub.b4, 3.sub.b5, 3.sub.b6) arranged along the first main axis (X.sub.1, X.sub.2), a second series of thermal neutron detectors (4.sub.a1, 4.sub.a2, 4.sub.a3, 4.sub.a4, 4.sub.a5, 4.sub.a6, 4.sub.b1, 4.sub.b2, 4.sub.b3, 4.sub.b4, 4.sub.b5, 4.sub.b6) arranged along the second main axis (Y.sub.1, Y.sub.2), and a third series of thermal neutron detectors (5.sub.a1, 5.sub.a2, 5.sub.a3, 5.sub.a4, 5.sub.a5, 5.sub.a6, 5.sub.b1, 5.sub.b2, 5.sub.b3, 5.sub.b4, 5.sub.b5, 5.sub.b6) arranged along the third main axis (Z.sub.1, Z.sub.2).