A measurement device includes a microwave generator, an electron spin resonance member, and an observation system. The microwave generator is configured to generate a microwave. The microwave is configured for an electron spin quantum operation based on a Rabi oscillation. The microwave generator has a coil configured to emit the microwave and an electrostatic capacitance member electrically connected in parallel to the coil. The microwave is irradiated to the electron spin resonance member. The observation system is configured to measure a physical quantity in a measured field in response to a state of the electron spin resonance member when the electron spin resonance member is irradiated by the microwave. The electrostatic capacitance member is directly connected to the coil or is arranged between the coil and an electric element that is electrically connected to the coil.

Systems and method for a multi-array magnetic sensing component, which can include a circuit base platform; a set of magnetic sensors arranged on the circuit base platform; and a circuit system comprising intermediary circuit components, signal input, and a signal output, the signal input being an electrical oscillator signal input and being directable to each magnetic sensor in the set of magnetic sensors, the signal output including magnetic field measurements from the set of magnetic sensors, wherein each magnetic field measurement is individually selectable, the circuit system being configured to turn on or off subsets of the set of magnetic sensors, and the intermediary circuit components including a mixer.

An alanine criticality accident dosimeter comprising at least two alanine pellets and at least two alanine pellets enhanced with moderator, and each pair of alanine pellet and enhanced alanine pellet is covered with a neutron filer or a photon filter. An improved method to determine radiation dose of a subject after an accident by measuring alanine pellets from a criticality accident dosimeter with neutron sensitivity, and improved discrimination between photon and neutron dose contributions.

A parametric resonance magnetometer comprising: a cell filled with an atomic gas; an optical pumping source arranged so as to emit a light beam in the direction of the cell; a polarisation device configured so that by the effect of the light beam, the atomic gas simultaneously acquires a state aligned according to an alignment direction and a state oriented according to an orientation direction; a parametric resonance excitation source configured so as to generate a radiofrequency magnetic field in the cell; and a device for detecting parametric resonances configured so as to measure the absorption of the light beam by the atomic gas;

The parametric resonance excitation source is configured so that the radiofrequency magnetic field consists of two components orthogonal to one another and each oscillating at its natural oscillation frequency. Said two components comprise a component longitudinal to the orientation direction and a component longitudinal to the alignment direction.

The light beam crosses the cell according to a direction of propagation, the polarisation device being configured so that the alignment direction is orthogonal to the direction of propagation of the light beam and the orientation direction is longitudinal to the direction of propagation of the light beam and the parametric resonance excitation source is configured so that said two components comprise a component longitudinal to the orientation direction at a direction longitudinal to the alignment direction.

A magnetometer includes a sample signal device; a reference signal device; a microwave field generator operable to apply a microwave field to the sample signal device and the reference signal device; an optical source configured to emit light including light of a first wavelength that interacts optically with the sample signal device and with the reference signal device; at least one photodetector arranged to detect a sample photoluminescence signal including light of a second wavelength emitted from the sample signal device and a reference photoluminescence signal including light of the second wavelength emitted from the reference signal device, in which the first wavelength is different from the second wavelength; and a magnet arranged adjacent to the sample signal device and the reference signal device.

A method for manufacturing a set of calibration pellets each associated with a respective absorbed dose includes, for each absorbed dose, choosing a paramagnetic material having an electron paramagnetic resonance spectrum that is stable over time, and making a first charge of the chosen paramagnetic material, the first charge having a physical parameter of which the value is equal to a target value such that a first amplitude of a first electron paramagnetic resonance spectrum of the first charge is equal to a second amplitude of a second electron paramagnetic resonance spectrum of a second charge of a predetermined dosimetric material, the second charge presenting the absorbed dose. The method also includes depositing the first charge in a cavity of a respective container formed from a material inert to electron paramagnetic resonance and sealing the cavity in a fluid-tight manner.

A method for manufacturing a set of calibration pellets each associated with a respective absorbed dose includes, for each absorbed dose, choosing a paramagnetic material having an electron paramagnetic resonance spectrum that is stable over time, and making a first charge of the chosen paramagnetic material, the first charge having a physical parameter of which the value is equal to a target value such that a first amplitude of a first electron paramagnetic resonance spectrum of the first charge is equal to a second amplitude of a second electron paramagnetic resonance spectrum of a second charge of a predetermined dosimetric material, the second charge presenting the absorbed dose. The method also includes depositing the first charge in a cavity of a respective container formed from a material inert to electron paramagnetic resonance and sealing the cavity in a fluid-tight manner.

A ferromagnetic resonance (FMR) measurement system is disclosed with a plurality of “m” RF probes and one or more magnetic assemblies to enable a perpendicular-to-plane or in-plane magnetic field (H.sub.ap) to be applied simultaneously with a sequence of microwave frequencies (f.sub.R) at a plurality of “m” test locations on a magnetic film formed on a whole wafer under test (WUT). A FMR condition occurs in the magnetic film (stack of unpatterned layers or patterned structure) for each pair of (H.sub.ap, f.sub.R) values. RF input signals are distributed to the RF probes using RF power distribution or routing devices. RF output signals are transmitted through or reflected from the magnetic film to a plurality of “n” RF diodes where 1≤n≤m, and converted to voltage signals which a controller uses to determine effective anisotropy field, linewidth, damping coefficient, and/or inhomogeneous broadening at the predetermined test locations.

A ferromagnetic resonance (FMR) measurement system is disclosed with a plurality of “m” RF probes and one or more magnetic assemblies to enable a perpendicular-to-plane or in-plane magnetic field (H.sub.ap) to be applied simultaneously with a sequence of microwave frequencies (f.sub.R) at a plurality of “m” test locations on a magnetic film formed on a whole wafer under test (WUT). A FMR condition occurs in the magnetic film (stack of unpatterned layers or patterned structure) for each pair of (H.sub.ap, f.sub.R) values. RF input signals are distributed to the RF probes using RF power distribution or routing devices. RF output signals are transmitted through or reflected from the magnetic film to a plurality of “n” RF diodes where 1≤n≤m, and converted to voltage signals which a controller uses to determine effective anisotropy field, linewidth, damping coefficient, and/or inhomogeneous broadening at the predetermined test locations.

In some aspects, a resonator device includes a dielectric substrate, a ground plane on a first side of the substrate, and conductors on a second, opposite side of the substrate. The conductors include first and second resonators and two baluns. Each balun includes a feed, a first branch and a second branch. The feed is connected to the first and second branches, and the first and second branches are capacitively coupled to the respective first and second resonators. The first branch includes a delay line configured to produce a phase shift relative to the second branch. The resonator device includes a sample region configured to support a magnetic resonance sample between the first and second resonators.