51results about "Tube electrostatic deflection" patented technology

The invention discloses a neutral atom detection device suitable for a wide energy range, and the device comprises an ionization deflection system which is used for ionizing neutral atoms incident from a space into positively charged ions, and can shield charged particles incident from the space, the ionization deflection system is provided with a first detection channel and a second detection channel which are arranged at an interval along a first direction; each of the first detection channel and the second detection channel is formed by a gap formed by a group of deflection plates which are oppositely arranged; the voltage polarities of the adjacent deflection plates between the two groups of deflection plates are set to be the same; the electrostatic analyzer comprises an outer hemisphere and an inner hemisphere, a third channel is arranged between the outer hemisphere and the inner hemisphere, the third channel is used for performing deflection motion on the entered positively charged ions, and the voltage applied by the inner hemisphere is used for performing energy analysis on the positively charged ions entering the third channel; the first detection channel is suitable for detecting a neutral atomic energy range of below 5keV, and the second detection channel is suitable for detecting a neutral atomic energy range of below 30keV.

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.

The invention discloses a neutral atom detection device based on a nested detection channel, and the device comprises a detector which comprises an ion deflection mechanism and an electrostatic analyzer, and the ion deflection mechanism comprises a plurality of deflection members and a plurality of ionization members which are coaxially arranged; a gap between the two deflection pieces forms a detection channel, and the multiple detection channels are annular detection view fields which are sequentially distributed at intervals from inside to outside so as to collect neutral atoms incident in a satellite operation orbit space; the plurality of ionization pieces are sequentially sleeved from inside to outside, and neutral atoms introduced into each detection channel correspondingly enter the ionization pieces at a grazing incidence angle; the electrostatic analyzer comprises a first electrode and a second electrode, a first passage is arranged between the first electrode and the second electrode, and the first passage deflects the positively charged ions entering through the plurality of detection channels; the rotary table is installed on the satellite platform, the rotary table is configured to be capable of rotating, and the detector is installed on the rotary table. The effective area of the nested detection channel is greatly increased.

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.

Provided is an electrostatic deflection convergence-type energy analyzer that has a wide acceptance angle and high two-dimensional convergence performance, is capable of imaging a two-dimensional real-space image and an emission angle distribution, and enables two-dimensional convergence and imaging at 90°deflection with respect to an incident direction. One or a plurality of outer electrodes and a plurality of inner electrodes are disposed along the shapes of two rotating bodies formed on the inside and the outside of a common rotating axis. The inner-surface shape of the outer electrode has a tapered shape becoming smaller in diameter toward both ends. The outer-surface shape of the inner electrodes has a tapered shape becoming smaller in diameter toward both ends. An electron incident hole and exit hole are formed in each of the outer electrodes at both ends on the rotating axis. The outer electrode and the inner electrodes have applied thereto voltages for accelerating and decelerating electrons in proportion to the energy of incident electrons. One or a plurality of electrodes except for the inner electrodes at both ends have applied thereto a voltage that is at least twice a converted acceleration voltage obtained by converting the energy of electrons into an acceleration voltage with reference to the potential of the outer electrode having the incident hole formed therein.

An electrostatic ion trap or an array of electrostatic ion traps having a longitudinal length of no more than 10 mm and / or at least one electrode with a capacitance to ground of no more than 1 pF is provided. First and second sets of planar electrodes may be distributed along the longitudinal axis, at least some of which are configured to receive an electrostatic potential to confine ions received in the space between the first and second sets of planar electrodes. An array may include an inlet for receiving an ion beam configured such that a portion of the ion beam can be trapped in each of the ion traps. Signals indicative of ion mass and charge data may be obtained from multiple electrostatic ion traps in the array.These mass and charge data can be combined to identify components of a mixture of different analyte ions.

The invention relates to a method for separating ions and a storage ion mobility separator. The storage ion mobility separator comprises an ion guide extending in a closed loop and containing a substantially quiescent gas through which ions pass. An axial force acting on the ions is provided by an electric field barrier that provides an electric field gradient moving around the ion guide and has an effect on the movement of the ions that is dependent on the ion mobility.At least one operating parameter of the storage ion mobility separator that influences mobility separation is varied as a function of time such that the ions are pushed in a controlled manner along the moving electric field barrier towards a high potential end of the electric field barrier, with the ions being ejected laterally from the ion guide before sliding over the electric field barrier.

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 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 charge detection mass spectrometer (CDMS) comprises an electrostatic sector field ion trap 40 and an inductive image charge detector 400, which may comprise two charge detector tubes 410A, 410B. The

The invention discloses a thermal surface ionization mass spectrometer structure. The structure includes a thermal surface ionization ion source, an ion transmission lens, an electrostatic analyzer, a deflection magnet, a multipole lens, a detection system, etc. The thermal ions are generated by the thermal surface ionization ion source; the ion beam is accelerated, focused and transmitted by the ion transmission lens; the ion beam imaging quality is improved by the multipole lens, and the resolution of the instrument is improved; the influence of the acceleration high voltage noise and drift is overcome by matching the electrostatic analyzer with the deflection magnet, and an excellent peak shape factor and long-term stability of the peak center are achieved.

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 gas inlet 8 is connected in parallel to a sensor assembly 3 and, via a flow damper 2, an ion mobility spectrometer 1. Another circulation inhibitor 2 is placed downstream of the IMS 1, linking with the outlet of the sensor array. An air pump 4 channels the stream to outlet 9. A pressure compensator 6 is attached to the spectrometer 1. The pump 4 acts to ensure that a high flow of vapour passes through the system, while the dampers 2 take a small sample to avoid overloading the spectrometer 1. The sensor assembly 3 might include detectors for substances such as ammonia or chlorine, or sensors for measuring atmospheric characteristics such as temperature, airflow, or pressure, or any combination thereof. The apparatus is suited for use in the air intake of a military combat vehicle.

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 mass analyzer and a mass spectrometer. The mass analyzer has: a set of sector-shaped electrodes providing an electrostatic field in a 2D reference plane, which extends along a drift path locally orthogonal to the reference plane to provide a 3D electrostatic field region; and an injection interface for injecting ions into the mass analyzer, so that the injected ions are guided along a 3D reference trajectory through the 3D electrostatic field region, and according to the 3D reference trajectory, the ions rotate multiple times while drifting along the drift path, and each circle corresponds to a completed track in the 2D reference plane. The injection interface includes an injection deflector that deflects the ions along the direction of the drift path. The injection interface preferably allows the ions guided along the 3D reference trajectory to maintain a sufficient distance from the injection port after being injected, so that they are substantially unaffected by the distortion of the electric field around the injection port.

A multireflection time-of-flight mass spectrometer comprises a mass analyzer with opposing mirror electrodes and a focal plane correction electrode. Each mirror electrode is generally extended along a drift direction. The focal plane correction electrode extends along at least one segment of the drift direction in or adjacent to the space between the mirror electrodes. Ions are injected into the mirror electrodes, and an electrical potential applied at the mirror electrode reflects the ions in the resulting ion beam, causing the ions to follow a zigzag path as they drift along the mirror electrodes. An electrical potential is applied at the focal plane correction electrode to adjust the focal plane position of the ion beam to coincide with a detector surface of an ion detector located at the end of 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.

A charge detection mass spectrometer (CDMS) comprises an electrostatic sector field ion trap 40 and an inductive image charge detector 400, which may comprise two charge detector tubes 410A, 410B. The

Ion guidance (10), comprising: a set of plate electrodes (40, 340), wherein each plate electrode (40, 340) has a plurality of openings formed therein, wherein the set of plate electrodes (40, 340) is spatially arranged such that a relative positioning of each plurality of openings of a respective plate electrode (40, 340) of the set of plate electrodes (40, 340) and of respective adjacent plate electrodes of the set of plate electrodes (40, 340) defines a continuous ion trajectory (50) through the respective plurality of openings of each plate electrode (40, 340) of the set of plate electrodes (40, 340), wherein the continuous ion trajectory (50, 375, 385) has a shape based on a helix and / or spiral, and an RF power supply designed to provide each plate electrode of the set of plate electrodes (40, 340) with a separate RF voltage, so that adjacent plate electrodes (40, 340) receive RF voltages with different phases.

A voltage supply (10) for a mass analyzer (1), comprising: a voltage source (16) having a first voltage output (12) configured to provide a first voltage to a first electrode (32) of the mass analyzer (1), wherein the first electrode (32) of the mass analyzer (1) has a first mass shift per volt perturbation; a second voltage output (14) configured to provide a second voltage to a second electrode (34) of the mass analyzer (1), wherein the second electrode (34) of the mass analyzer (1) has a second mass shift per volt perturbation, wherein the second mass shift per volt perturbation is opposite to the first mass shift per volt perturbation;and a voltage divider network (20) connected to the voltage source (16), the first voltage output (12), and the second voltage output (14), the voltage divider network (20) comprising: a first resistor (22) configured to define the first voltage, the first resistor (22) having a first temperature coefficient; and a second resistor (24) configured to define the second voltage, the second resistor (24) having a second temperature coefficient, the second temperature coefficient being selected based on the first and second mass displacement per volt perturbations and the first temperature coefficient such that a first mass displacement associated with the first electrode (32) is compensated by a second mass displacement associated with the second electrode (34);

The present invention relates to a focusing method and device based on a time-of-flight mass spectrometer, comprising: arranging n+n' identical electrode sheets coaxially and insulatingly, wherein the distance between the first electrode sheet and the nth electrode sheet is L 1 , the distance between the nth electrode and the n+n'th electrode is L 2 ; Set electric field shielding nets on the first electrode sheet, the nth electrode sheet, and the n+n'th electrode sheet to isolate the electric field on both sides of the electrode sheet; connect the first electrode sheet to the n+n'th electrode sheet to the voltage source respectively; generate a length of L between the electrode sheet and the electric field shielding net 1 , L 2 , the intensity is E 1 、E 2 The field strength E can be adjusted by adjusting the voltage applied to the electrodes at both ends. 1 、E 2 , by adjusting the field strength E 1 、E 2 Time-of-flight focusing is achieved for charged particles of any given speed.

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 charge detection mass spectrometer (CDMS) comprises an electrostatic sector field ion trap 40 and an inductive image charge detector 400, which may comprise two charge detector tubes 410A, 410B. The

A charge detection mass spectrometer (CDMS) comprises an electrostatic sector field ion trap 40 and an inductive image charge detector 400, which may comprise two charge detector tubes 410A, 410B. The

The invention relates to the technical field of mass spectrometers and accelerator mass spectrometers, in particular to an accelerator mass spectrometer system taking a speed selector as an analyzer, which comprises a sample injector, an ion source, an accelerator, a magnetic analyzer, an absorption film, a speed selector and a detector, in order to miniaturize and simplify an accelerator mass spectrum, the accelerator mass spectrometer system based on the speed selector is provided for the first time, namely, the speed selector is used for replacing an electrostatic analyser 2 and a magnetic analyser 2 at the high-energy end of an accelerator mass spectrometer; therefore, on the premise of ensuring various technical indexes of the accelerator mass spectrometer, the size of the system is reduced, the cost of the instrument is also reduced, and one speed selector is equivalent to the integration of one electrostatic analyzer and one magnetic analyzer.

Ions are guided along an ion channel. A multitude of electrodes is arranged on the surface of an ion guide and applies a time-varying potential to repel the ions from the surface. A counter-electrode assembly comprises a main counter-electrode section and has an opening extending along the counter-electrode assembly. The counter-electrode assembly applies a direct current (DC) counter-potential to push the ions toward the surface. The time-varying potential and the DC counter-potential together confine the ions within the ion guide. The counter-electrode assembly applies a stronger DC counter-potential in a region adjacent to the main counter-electrode section than in a region adjacent to the opening, thereby confining the ions in an ion channel corresponding to the opening.

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).

The invention relates to an apparatus for an ion spectrometric system that facilitates the transfer of ions, the apparatus comprising a concave ion deflector, the concave ion deflector comprising a plurality of conductive electrodes forming an inwardly curved surface and a pusher element for deflecting ions; an RF voltage supply for applying an RF voltage to the concave ion deflector; and an outlet designed and arranged to discharge a directed gas stream containing ions; the outlet and the concave ion deflector being arranged relative to one another such that the directed gas stream containing ions is directed towards the inwardly curved surface of the concave ion deflector; the outlet being located outside the concave ion deflector;and the concave ion deflector is designed and arranged to retain and deflect ions coming from the exit, while simultaneously allowing other particles coming from the exit to pass through the inwardly curved surface. The present invention also relates to a method for facilitating the transfer of ions in an ion spectrometric system.