16results about "Tube electrostatic deflection" patented technology

An apparatus for ion manipulations includes an ion manipulation path extending between an inlet and an outlet, at least one continuous electrode configured to receive a first RF voltage signal, and a plurality of segmented electrodes configured to receive a second voltage signal and generate a traveling wave field based thereon. The ion manipulation path includes a first region extending in a first direction, a second region extending in a second direction, and a curved region extending between the first and second regions. The at least one continuous electrode extends through the first region, the curved region, and second region. The segmented electrodes are arranged along the ion manipulation path in the first region, the curved region, and the second region. The traveling wave field is configured to cause ions to travel through, the first region, the curved region, and the second region.

This application discloses an ion separation device and method, belonging to the field of mass spectrometry analysis technology. The device includes: a mass analyzer comprising three parallel layers: an upper electrode, a lower electrode, and an intermediate support layer; rectangular electrodes are disposed on opposite surfaces of the upper and lower electrodes, all arranged parallel to the length of the upper and lower electrodes, with uniform spacing between adjacent rectangular electrodes; the intermediate support layer serves as a support structure between the upper and lower electrodes, and contains an ion movement space; an ion source and a detector are disposed within the intermediate support layer, the detector receiving ions emitted from the ion source into the ion movement space, enabling the detection of ions with different mass-to-charge ratios; and a voltage module generating a vertical electric field between the upper and lower electrodes, forming a linear potential gradient along the longitudinal direction. This device can efficiently and accurately separate and detect ions with different mass-to-charge ratios.

The invention discloses an ion transmission device, which realizes optimization of air pressure difference and ion transmission through the design of a differential radio frequency multipole and realizes connection of a low-vacuum inflation radio frequency multipole and a high-vacuum electrostatic lens group, and the permeability of the differential radio frequency multipole can effectively improve the transmission efficiency of ions compared with the permeability of an existing pore structure. The loss of ions in the transmission process is reduced; the sealing area achieves large difference of air pressure, a section of pipeline is formed through radial sealing, large pipe resistance is achieved, and therefore the large difference of the air pressure is achieved. The radio frequency voltage amplitude is reduced in an equal-proportion square manner, so that the edge radio frequency electric field is remarkably reduced, the reheating phenomenon of ions in the transmission process is avoided, the low-energy state of the ions after cooling is favorably kept, and the mass spectrometry precision is improved; the shielding area effectively shields the electric field of the electrostatic lens, and the ions are prevented from being accelerated in a high-pressure area, so that the randomness of ion kinetic energy is reduced, and the resolution and sensitivity of mass spectrometry are improved.

The invention relates to the technical field of mass spectrometry, in particular to a magnetic spiral flight time mass spectrometry device and method, and the device comprises an ion optical system, a magnetic field generation system, a flight cavity, an ion detector and a computer control system, the ion optical system adjusts the ion source to enter the flight cavity at a target deflection angle and fly at a target speed under a target magnetic field provided by the target magnetic field system through an electrostatic deflector; the flight cavity has a target vacuum degree, and the ion source flies for a target distance along a spiral track in the flight cavity; a detector is arranged in the flight cavity and used for detecting the flight time of the ion source, and the computer control system is electrically connected with the detector and used for collecting multiple flight times and then generating a time mass spectrum. The structure is simple, only the coil, the vacuum chamber and other basic assemblies are needed, the ion incident angle is adjusted in an electronic mode, and the mass resolution and the analysis speed of the instrument can be dynamically adjusted.

A charge detection mass spectrometer, CDMS, and method is described. The CDMS 4, comprises: an electrostatic sector field ion trap 40 and an inductive charge detector 400; wherein the electrostatic sector field ion trap 40 is configured to define, at least in part, an ion path via the inductive charge detector 400. The electrostatic sector field ion trap comprises a set of electrostatic sectors, including a first electrostatic sector 41A and a second electrostatic sector 41B; and wherein an ion moves with a constant speed around the ion path. The first electrostatic sector may be a cylindrical, a toroidal or a spherical electrostatic sector. The electrostatic sector field ion trap may be isochronous. The CDMS may comprise a lift device configured to increase an ion energy of ions to be introduced into the ion path.

A charge detection mass spectrometer (CDMS) is described, comprising an electrostatic sector field ion trap (40) and an induced charge detector (400), the electrostatic sector field ion trap (40) configured to at least partially define an ion path through the induced charge detector (400). A method is also described.

The present application provides a kind of electrostatic deflection convergent energy analyzer, it has wide receiving angle and high two-dimensional convergent performance, can carry out imaging to two-dimensional real space image or emission angle distribution, and can carry out two-dimensional convergent and imaging under 90 ° deflection relative to the direction of incidence. One or more outer electrodes and multiple inner electrodes are arranged along the shape of two rotors formed on the inner side and outer side of common rotation axis. Among them, the inner surface shape of outer electrode is tapered, the diameter of which decreases towards both ends, and the outer surface shape of inner electrode is tapered, the diameter of which decreases towards both ends. Electron entrance hole and exit hole are formed on the outer electrode at both ends of the rotation axis respectively. Voltage for electron acceleration and deceleration is applied to outer electrode and inner electrode in proportion to the energy of incident electron. Voltage is applied to one or more electrodes except the inner electrode at both ends, which is twice or more than the converted acceleration voltage obtained by converting the energy of electron into acceleration voltage based on the potential of outer electrode where entrance hole is formed.

The objective of the present invention is to manufacture an acceleration device and a mass analysis device inexpensively and with a compact size, enabling them to be used by any person. The mass analysis device (300) is configured from a plurality of substrates, including a first main substrate (301), a first upper substrate (302) adhered to the upper surface of the first main substrate (301), and a first lower substrate (303) adhered to the lower surface of the first main substrate (301). A mass analysis chamber (308) is a passage formed in the first main substrate (301) and running from the upper surface of the first main substrate (301) to the lower surface of the first main substrate (301), and enclosed in the direction perpendicular to the substrate surfaces (the Z direction) by the upper substrate (302) and the lower substrate (303), enclosed on both sides in the direction (the direction X) which is orthogonal to the Z direction and is the direction of advance of charged particles (318) by first main substrate side plates (301-4, 301-5), and enclosed on both side surfaces in the direction (the Y direction) orthogonal to the Z direction and the X direction by the first main substrate (301). A center hole (310-4) is opened in the first main substrate side plate (301-4) to which the charged particles (318) are incident, and the charged particles (318) enter the mass analysis chamber (308) from the center hole (310-4) formed in the first main substrate side plate (301-4).

A generator system includes a first electrode (10) and a second electrode (30) and a material (25) or vacuum (27) between the first and second electrode (10, 30). A first means to create an electrostatic field (11) is positioned above the first electrode (10) and an ion creator (28) that creates ions is disposed within the material (25) or vacuum (27). The first means to create the electrostatic field (11) generates an electrostatic field that penetrates the first electrode (10). The generator system can include a second means to create an electrostatic field (36) in which the second electrode (30) is between the second means to create electrostatic field (36), and the material (25) or vacuum (27) and the second means to create the electrostatic field (36) generates an electrostatic field that penetrates the second electrode (30).

This invention discloses a neutral atom detection device based on nested detection channels, including a detector comprising an ion deflection mechanism and an electrostatic analyzer. The ion deflection mechanism includes multiple deflecting elements and multiple ionizing elements arranged coaxially. A detection channel is formed by the gap between two deflecting elements, and the multiple detection channels are arranged in a ring-shaped detection field of view, spaced out from the inside, to collect neutral atoms incident from the satellite's orbital space. The multiple ionizing elements are nested from the inside out, with neutral atoms introduced into each detection channel entering the ionizing element at a corresponding grazing incidence angle. The electrostatic analyzer includes a first electrode and a second electrode, with a first passage between them, which deflects positively charged ions entering through the multiple detection channels. A turntable is mounted on a satellite platform, configured to rotate, and the detector is mounted on the turntable. The effective area of ​​the nested detection channel is significantly increased.

A charge detection mass spectrometer, CDMS, is described. The CDMS 4, comprises: an electrostatic sector field ion trap 40 and an inductive charge detector 400; wherein the electrostatic sector field ion trap 40 is configured to define, at least in part, an ion path via the inductive charge detector 400. A method is also described.

The invention relates to a charged particle beam deflection device. The charged particle beam deflection device comprises a first electrode and a second electrode, the first electrode is provided with a first through hole, and the second electrode is provided with a second through hole. The central axis of the first through hole is a first axis, the central axis of the second through hole is a second axis, and the first axis and the second axis are located on the same plane and form a certain included angle. The first electrode and the second electrode are arranged at an interval, and an area therebetween forms a deflection area. Different voltages are applied to the first electrode and the second electrode respectively, a non-axisymmetric electric field can be formed in the deflection area, and therefore the deflection direction of the charged particle beam penetrating through the deflection area is regulated and controlled. Through an innovatively designed electrode structure and a non-axisymmetric electric field constructed by the electrode structure, integrated regulation and control of particle beam deflection and focusing are realized, neutral particle noise is remarkably inhibited, the signal-to-noise ratio is greatly improved, adhesion pollution of neutral particles on the surface of a downstream device is effectively reduced, and the device has a good application prospect. Therefore, the maintenance period of the equipment is obviously prolonged.

The invention relates to the technical field of instruments and meters, in particular to a small-sized double-focusing mass spectrum imaging system for space and a use method, the system comprises an ion source, a coding plate, an electrostatic analyzer, a magnetic analyzer and an FOP detector, the ion source adopts a symmetrical magnetic field structure, and a cathode emission device and a hot filament are respectively located at two ends of the ion source; the coding plate is arranged right in front of the ion source; the electrostatic analyzer is composed of two coaxial cylindrical electrodes; the magnetic field structure of the magnetic analyzer is a direct asymmetric fan-shaped magnetic field; the electrostatic analyzer and the magnetic analyzer are combined in a reverse serial connection manner; the FOP detector adopts a micro-channel plate + fluorescent screen + CMOS camera imaging mode. According to the invention, the limitation of large sizes of ion beams and imaging light spots thereof under a conventional single-slit outlet structure of a mass spectrometer is overcome by adopting a coding aperture mode, so that the mass resolution of the mass spectrum imaging device is remarkably improved, the sensitivity is high, the imaging speed is high, the signal-to-noise ratio is high, and the detection of lower-content substances is realized.

An ion mobility analyser is disclosed having a gas flow directed along the ion travel axis and a set of electrodes to which DC voltages are applied to establish a DC field. The opposing forces of the gas flow and DC field cause ions to be trapped within a separation region in axial regions determined by their ion mobilities. A gas recirculator, having inlet and outlet ends respectively located downstream and upstream of the separation region, supplies at least fifty percent of the gas flow within the separation region, thereby reducing vacuum pumping requirements.

The invention discloses an ion separation device and an ion separation method, and belongs to the technical field of mass spectrometry, and the device comprises a mass analyzer which comprises an upper polar plate, a lower polar plate and a middle supporting layer which are parallel to each other; rectangular electrodes are arranged on the opposite surfaces of the upper polar plate and the lower polar plate, all the rectangular electrodes are arranged in parallel in the length direction of the upper polar plate and the lower polar plate, and the distance between every two adjacent rectangular electrodes is uniform; the middle support layer is used as a support structure between the upper pole plate and the lower pole plate, and an ion motion space is arranged in the middle support layer; an ion source and a detector are arranged in the middle supporting layer, and the detector is used for receiving ions emitted into the ion motion space by the ion source so as to detect the ions with different mass-to-charge ratios; and the voltage module is used for generating an electric field in the vertical direction between the upper pole plate and the lower pole plate and forming a linear potential gradient in the longitudinal direction. The device can efficiently complete accurate separation and detection of ions with different mass-to-charge ratios.

The application discloses a neutral atom detection device suitable for a wide energy range, which comprises: an ionization deflection system for ionizing neutral atoms incident from space into positively charged ions, capable of shielding charged particles incident from space, the ionization deflection system having a first detection channel and a second detection channel arranged at intervals along a first direction; the first detection channel and the second detection channel are both arranged as gaps formed by a set of oppositely arranged deflection plates; the voltage polarity of adjacent deflection plates between the two sets of deflection plates is the same; and an electrostatic analyzer comprising an outer hemisphere and an inner hemisphere, the outer hemisphere and the inner hemisphere having a third channel therebetween, the third channel being used for the deflection movement of the entering positively charged ions, and the voltage applied by the inner hemisphere being used for the energy analysis of the positively charged ions entering the third channel; the energy range of the neutral atoms suitable for detection by the first detection channel is below 5keV, and the energy range of the neutral atoms suitable for detection by the second detection channel is below 30keV.