75results about "Radiation/particle handling" patented technology

The application belongs to the technical field of space particle environment simulation, and provides a space particle environment simulation system and method.The system comprises a vacuum cabin body, a multi-beam line incidence unit connected with the vacuum cabin body, a first beam line incidence unit, a second beam line incidence unit, the first beam line incidence unit comprising a first adjusting support assembly and a first beam line incidence cone, the second beam line incidence unit comprising a second adjusting support assembly and a second beam line incidence cone, and a control device used for determining correction amounts of an incidence point of the simulated proton beam line and an incidence point of the simulated electron beam line in a vacuum extraction process of the vacuum cabin body, and correcting positions of the first incidence point of the simulated proton beam line and the second incidence point of the simulated electron beam line by moving operations of the first adjusting support assembly and the second adjusting support assembly.The application improves the convergence accuracy of multiple simulated beam lines and the automatic correction process of the incidence points of the simulated beam lines.

This disclosure relates to an inertial sensor for measuring an inertial quantity along a sensing axis. The sensor comprises an atom interferometer comprising a pulse generator to generate one or more pulsed light beams, defined by a respective pulse duration to place atoms into a superposition, and re-combine the atoms to measure an interference of the atoms and calculate the inertial quantity based on the measured interference. The sensor further comprises an auxiliary acceleration sensor configured to measure acceleration transverse to one or more of the pulsed light beams; and a control system configured to calculate a transversal offset of the atoms relative to the pulsed light beams caused by the measured acceleration transverse to the one or more of the light beams, increase the pulse durations, and adjust the pulse timings to compensate for a reduced beam intensity applied to the atoms as a result of the transversal offset.

The present disclosure relates to a module of a trap for charged particles (e.g. ions), to manufacturing such module, to a trap including the module and a manufacturing of such modular trap . The module comprises a monolithic body made of a non-conductive substrate and an electrode arranged on a portion of a surface of the monolithic body. A part of the monolithic body forms a spring element. An electrically conductive area is arranged on and covers a portion of a surface of the spring element and is conductively connected with the electrode. The spring element is adapted to compress upon pressure applied on the electrically conductive area.

A method of fabricating a mask is provided. The method includes providing a hard mask layer disposed on top of absorber, a capping layer, and a multilayer that are disposed on a substrate. The method includes forming a middle layer over the hard mask layer, forming a photo resist layer over the middle layer, patterning the photo resist layer, etching the middle layer through the patterned photo resist layer, etching the hard mask layer through the patterned middle layer, and etching the absorber through the patterned hard mask layer. In some embodiments, etching the hard mask layer through the patterned middle layer includes a dry-etching process that has a first removal rate of the hard mask layer and a second removal rate of the middle layer, and a ratio of the first removal rate of the hard mask layer to the second removal rate of the middle layer is greater than 5.

In various embodiments, a quantum object confinement device is provided that includes a plurality of electrodes and is configured to confine one or more quantum objects. Each electrode is configured to generate a confinement potential for confining one or more quantum objects, the confinement potential defining the positions of the one or more quantum objects. The quantum object confinement device includes one or more metasurfaces configured to be associated with the positions of the quantum objects. The metasurfaces are comprised of a plurality of transparent conductive oxide metamaterial structures.

This invention relates to the field of nuclear fusion technology, and discloses an ion swallower and a neutral beam injection system. The ion swallower is used for the absorption of high-energy ions and includes: a mounting frame; a first energy absorption target, a second energy absorption target, and a third energy absorption target, all fixed to the mounting frame. The first and third energy absorption targets are opposite to each other and spaced apart along a first direction, and the second energy absorption target is disposed between the first and third energy absorption targets. The first energy absorption target is used to absorb first-energy ions, the second energy absorption target is used to absorb second-energy ions, and the third energy absorption target is used to absorb third-energy ions. By setting the first, second, and third energy absorption targets, the absorption efficiency of the ion swallower for deflected ions is improved, and the risk of ions escaping from the ion swallower into the vacuum chamber and causing damage to other components inside the vacuum chamber is reduced.

A photonic device 100 comprises a first interface 2 coupling a plurality of first device waveguides 4 to a plurality of light source 14 waveguides 16 and a second interface 6 linking a plurality of s

In various embodiments, a device is provided that includes a two-dimensional array of particles, each of which comprises: [Equation 1] TIFF2023552091000460.tif8150; each particle has a first state and an excited state; each particle belonging to at least three unit cells of the ruby ​​lattice has a blockade radius sufficient to block, when in an excited state, each of at least six nearest neighboring particles in the ruby ​​lattice from transitioning from its first state to its excited state, and the array has at least one exterior edge configured to be in a first boundary condition.

Embodiments of the present disclosure provide RF inductors for RF resonators. In some embodiments, exemplary RF inductors include a machined conductive coil having a cross-sectional area configured to define a hollow interior and facilitate the reduction of power dissipation in the RF resonator. The RF inductor may include a sapphire dielectric core coupled to the machined conductive coil. At least a portion of the sapphire dielectric core may be located within the machined conductive coil. The sapphire dielectric core may be configured to conduct heat at least partially from the sapphire dielectric core.

This invention discloses a polarization 3 The preparation method of glass material for the gas chamber of He neutron spin filter includes the following steps: (1) mix barium oxide, aluminum oxide, silicon oxide and titanium oxide, place them in a quartz crucible, and melt them at 1600~1800℃ for 10~24h in a chlorine atmosphere to obtain liquid glass; wherein, barium oxide, aluminum oxide, silicon oxide and titanium oxide are mixed in the following mass percentages: 30~40% barium oxide, 10~15% aluminum oxide, 50~60wt% silicon oxide and 0~2% titanium oxide; (2) blow the liquid glass into a molded gas chamber, and then anneal the molded gas chamber in a chlorine-rich atmosphere; (3) after annealing, use supercritical CO2 fluid to clean the gas chamber cavity, and after cleaning, fill it with N2O gas, and under ultraviolet light irradiation, form a passivated surface on the glass surface to obtain a glass gas chamber. The method of this invention, through specific component and process design, can construct a dense, uniform glass network with extremely low magnetic impurities at the molecular scale, thereby simultaneously improving the airtightness of the glass material and reducing its magnetization relaxation, so that the neutron transmittance of the glass material can reach more than 95%@4.5Å.

Light reflector element having several reflector surfaces oriented at different predefined angles with respect to a predefined direction of light incidence of the light reflector element, wherein the reflector surfaces are centered around a center of the light reflector element, e.g.The reflector elements are arranged in a ring shape, wherein each pair of mutually associated reflector surfaces is arranged diametrically opposite each other with respect to the center of the light reflector element, such that light incident in the direction of the light irradiation is deflected by the reflector surfaces into light rays that run towards each other in different spatial directions and meet in a central axis that runs through the center in the direction of the light irradiation, characterized in that the light reflector element has one or more pairs of mutually associated reflector surfaces, in which one reflector surface of the pair is oriented with respect to the predefined direction of the light irradiation of the light reflector element at an angle in the range of 46° to 89° and the other reflector surface of the same pair is oriented with respect to the predefined direction of the light irradiation of the light reflector element at an angle in the range of 1° to 44°.

A method for laser cooling an object crystal comprising at least two atomic objects and confined by a confinement apparatus is provided. A controller controls one or more manipulation sources to cause a first instance of manipulation signals to be incident on the object crystal at a target location defined at least in part by the confinement apparatus. The manipulation signals are configured to laser cool a first motional mode of the object crystal. The controller causes an adiabatic transfer of phonons from a second motional mode of the object crystal to the first motional mode of the object crystal. The controller controls the one or more manipulation sources to cause a second instance of the manipulation signals to be incident on the object crystal at the target location. The manipulation signals are configured to laser cool the first motional mode of the object crystal.

Neutron generating targets, for example for use in boron neutron capture therapy ("BNCT"), and methods for manufacturing the neutron generating targets. This specification describes lithium-containing neutron generating targets useful for generating neutron beams for bombarding boron-containing compounds in boron neutron capture therapy of cancer. One method involves pressing a lithium foil against a substrate with sufficient force such that the lithium deforms during the pressing operation and adheres to the substrate, thereby forming a thin lithium layer on the surface of the substrate.

Radiation risks to workers may be high. [Solution] A neutron capture therapy system (100) includes an accelerator (200) for generating a charged particle beam (P), a neutron generator (10) that reacts with the charged particle beam (P) to generate a neutron beam (N), and a beam shaper (20). The beam shaper (20) includes a housing (21), a moderator (22), a reflector (23), a thermal neutron absorber (24), a radiation shield (25), and a beam outlet (26). The housing (21) is provided with a vacuum tube (30) connected to the accelerator (200). The vacuum tube (30) transfers the charged particle beam (P) accelerated by the accelerator (200) to the neutron generator, which can react with the charged particle beam (P) to generate neutrons. The neutron generator (10) moves between a first position and a second position. At the first position, the neutron generator (10) can react with the charged particle beam (P) to generate neutrons. At the second position, the neutron generator (10) detaches from the beam shaper (20).

A lithography exposure system includes a light source, a substrate stage, and a mask stage between the light source and the substrate stage along an optical path from the light source to the substrate stage. The lithography exposure system further comprises a reflector along the optical path. The reflector comprises: a first layer having a first material and a first thickness; a second layer having the first material and a second thickness different from the first thickness; and a third layer between the first layer and the second layer, and having a second material different from the first material.

Aspects of the present disclosure relate to efficiently trapping ions for QIP systems. A system may include an ablation laser beam source and an ion trapping structure including: an enclosure with an orifice, a source material that is arranged in the enclosure and receives an ablation laser pulse to provide a plume of atoms. A system may include at least one LED that is arranged in the enclosure and onto which at least a portion of the plume of atoms is deposited, wherein the at least one LED is configured to emit light that desorbs at least one deposited atom through the orifice. A system may include an ion trap with a gap through which the at least one deposited atom desorbed travels from the orifice, and a laser beam source configured to generate a laser beam towards the at least one deposited atom creating a trapped ion.

A pulsed-laser applies short (e.g., less than 10 pico-seconds) pulses to modify quantum particle (e.g., alkali-metal and alkaline-earth-metal atoms) ultra-high vacuum (UHV) cells to bond, ablate, and / or chemically modify vacuum-facing surfaces of the cell. The pulses are generated outside the cell and are transmitted through a vacuum-boundary wall. In one example, one vacuum-boundary wall is first contact bonded to other vacuum boundary walls at a relatively low temperature (below 200° C.), sufficient to form a temporary hermetic seal. Pulsed laser bonding is used to reinforce the contact bonds, correcting defects and generally increasing the robustness of the seal. The pulses provide high peak power to ensure strong bonds, but low total heat so as to avoid heat damage to nearby cell components and to limit quantum-particle sorbtion to and into cell walls.

The invention relates to the technical field of beam gates, and discloses a particle beam gate structure and a beam gate control device.The particle beam gate structure comprises a first polar plate group, a second polar plate group, a third polar plate group and a Faraday cage which are sequentially arranged; the first polar plate group is provided with a first electric field operation area for deflecting the electron beam; the second polar plate group is provided with a second electric field operation area and is used for reversely deflecting the electron beams passing through the first electric field operation area; the third polar plate group is provided with a first space and a third electric field operation area, the first space and the third electric field operation area are oppositely arranged, no electric field is arranged in the first space, and the third electric field operation area is used for deflecting a high-energy electron beam. The first polar plate group and the second polar plate group enable the low-energy electron beam to be incident to the Faraday cage after being subjected to two times of inclined deflection; the high-energy electron beam is incident to the Faraday cage after being deflected for three times, so that the problem that electron beams with different energies cannot be deflected by the beam brake under the same voltage in the existing design is effectively solved.

The invention relates to a method in which at least one ensemble of atoms is prepared in an output coupling state (Z1) and, by means of coherent control interventions acting on the at least one ensemble of atoms in an atom interferometer input state that is the same as or, after the application of further manipulation steps, different from the output coupling state (Z1), is changed into subsequent states different from the atom interferometer input state, and a matter-wave interferometry sequence, which may in particular have several loops, is carried out with the at least one ensemble of atoms. The invention further relates to an atom interferometer configured for carrying out such a method and to a computer program for carrying out such a method.

Provided are an optical system for directing a plurality of light beams towards a plurality of ions at an ion trapping location, and a manufacturing method for an optical system. The optical system comprises an optics module comprising a plurality of waveguides and a deflecting element (e.g. micro mirror) which reflects light from the waveguides toward an ion trapping location. A lens system is arranged between the deflecting element and the ion trapping location to be commonly traversed by the light beams to focus each of the light beams to a respective one of the trapped ions. The present disclosure provides a scalable, modular, integrated approach for addressing ions trapped in an ion trap.

The invention relates to a scattered radiation mask for reducing X-ray scattered radiation, in particular for X-ray imaging, comprising a layer stack having a first X-ray transparent layer, a second X-ray absorbing layer and a third X-ray transparent layer, wherein the first layer, the second layer and the third layer each have at least one planar sub-layer, and adjacent sub-layers of the layer stack are coated one above the other in the stacking direction by means of an additive manufacturing method. The invention also relates to a device for X-ray imaging, a method for producing a scattered radiation mask, a facility for additive production of a scattered radiation mask, and the use of a facility with a coating unit for additive production of a scattered radiation mask.

An optical device for manipulating an atom or an object comprises a light source for emitting a short-wave electromagnetic beam; and a movable optical element for influencing the beam wherein the optical element has 3D mobility; the beam of the light source is directed to the optical element and is focused at a focal point in the beam path thereafter; wherein the optical element is arranged and configured such that by the movement of the optical element the focal point is displaceable and a spatial manipulation of the atom or object is caused in an environment around the focal point.

Embodiments of this disclosure provide a method for generating a signal applied to the electrodes of an ion trap and for using pulse-width modulation (PWM) to reduce noise. In some embodiments, a PWM signal generator is configured to generate at least one signal, a filter network is configured to filter at least one signal, and a controller is configured to control the operation of the PWM signal generator and the filter network. The controller may cause the PWM signal generator to generate at least one signal. At least one signal may be provided to the filter network. The controller may cause the filter network to filter at least one signal according to noise requirements, and the filtered at least one signal may be provided to the electrical components of the system.

One example includes a MOT system. The system includes first optical source configured to provide a plurality of first optical beams parallel to a central axis associated with the MOT system, and a first set of optics configured to focus the first optical beams to the central axis through a trapping region comprising a vapor of atoms. The system also includes a second optical source configured to provide a plurality of second optical beams parallel to the central axis associated with the MOT system, and a second set of optics configured to focus the second optical beams to the central axis through the trapping region. Each of the second optical beams can be coaxial with a respective one of the first optical beams, such that each of the first optical beams is counterpropagating with a respective one of the second optical beams.

A device for controlling an ion, having an electrode arrangement configured to generate an electric field to trap the ion, wherein a plurality of openings are defined in the electrode arrangement, and an optical arrangement configured to transmit a plurality of output optical signals of different wavelengths to the trapped ion to control the trapped ion, wherein the optical arrangement includes a plurality of wavelength filters configured to receive at least one input optical signal, wherein, for each wavelength filter, the wavelength filter is configured to filter the at least one input optical signal to generate a respective output optical signal of the plurality of output optical signals, and wherein the optical arrangement is configured to transmit the respective output optical signal to the trapped ion through a respective opening of the plurality of openings, the respective output optical signal being defined by a respective wavelength of the different wavelengths.

This invention provides a device and method for achieving site-specific gate control for magnetically sensitive qubits in quantum computing. [Solution] A device comprising a plurality of independent rotary gates, each rotary gate comprising a magnet that generates a magnetic field structure 10, 11 of a predetermined strength at the qubit position of the respective rotary gate, the magnetic field generating the resonance frequency of the qubit at the qubit position due to the magnetically sensitive electronic state of the qubit 15. The device also comprises a first electromagnetic field source 26-29 that generates an electromagnetic field of the resonance frequency over a predetermined period of time across the plurality of independent rotary gates. Each independent rotary gate comprises a controller 41 that independently de-resonates the qubit at a predetermined time within the predetermined period.

The inventors have developed techniques to facilitate the operation of a quantum oscillator with increased bit-flip lifetimes by inducing an energetic asymmetry between qubit states. The technology may be used for the storage of quantum information or for providing a system for quantum information processing with longer bit flip lifetimes. The technology includes a qubit along with corresponding drives for controlling the energetic barrier and energetic asymmetry between the energetic potentials for each qubit state.

A photonic device comprises a first interface designed to couple a plurality of first waveguides of the photonic device to a plurality of waveguides of a light source, and a second interface designed to couple a plurality of second waveguides of the photonic device to a plurality of waveguides of an atom trap device. The number of first waveguides in the plurality is smaller than the number of second waveguides in the plurality. The first pitch of the plurality of first waveguides is larger than the second pitch of the plurality of second waveguides.

Light reflector element having several reflector surfaces oriented at different predefined angles with respect to a predefined direction of light incidence of the light reflector element, wherein the reflector surfaces are centered around a center of the light reflector element, e.g.The reflector element is arranged in a ring shape, wherein each pair of mutually associated reflector surfaces is arranged diametrically opposite each other with respect to the center of the light reflector element, such that light incident in the direction of the light irradiation is deflected by the reflector surfaces into light rays that run towards each other in different spatial directions and meet in a central axis that runs through the center in the direction of the light irradiation, characterized in that the light reflector element has one or more pairs of mutually associated reflector surfaces, in which one reflector surface of the pair is oriented with respect to the predefined direction of the light irradiation of the light reflector element at an angle in the range of 46° to 89° and the other reflector surface of the same pair is oriented with respect to the predefined direction of the light irradiation of the light reflector element at an angle in the range of 1° to 44°.

A particle beam therapy device that irradiates a patient with a cation beam to perform treatment, the device including a passage selection unit that selectively passes through the cation beam among a mixed beam in which the cation beam and other species of a beam having a nuclide different from that of the cation beam are mixed after passing through a deflection magnetic field, after causing the mixed beam to pass through the deflection magnetic field, in a case where the other species of the beam is generated from the cation beam.