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| Number | Title | Issue Date |
| 7718960 | Ion mobility spectrometer and ion-mobility-spectrometry/mass-spectrometry hybrid spectrometer A low-cost and high-ion-transmission-ratio ion-mobility spectrometry filter, including an ion source, a first drift region in which a gas flow direction and a DC electric-field direction are opposite to each other, a second drift region in which a gas flow direction... | 05/18/2010 |
| 7550722 | Focal plane detector assembly of a mass spectrometer A focal plane detector assembly of a mass spectrometer includes an ion detector configured to detect ions crossing a focal plane of the spectrometer and an electrically conductive mesh lying in a plane parallel to the focal plane, positioned such that ions exiting a... | 06/23/2009 |
| 7442920 | Optical bench for a mass spectrometer system Mass spectrometer systems for measuring mass/charge ratios of analytes are described. A mass spectrometer system includes a vacuum flange, a PCB base plate coupled to the vacuum flange, and an ion optic assembly coupled to the PCB base plate. The PCB base plate may ... | 10/28/2008 |
| 7427751 | High sensitivity slitless ion source mass spectrometer for trace gas leak detection A mass spectrometer includes a main magnet having spaced-apart polepieces which define a gap, the main magnet producing a magnetic field in the gap, an ion source to generate ions and to accelerate the ions into the magnetic field in the gap, the ion source located ... | 09/23/2008 |
| 7427752 | Mass spectrometer A magnetic sector mass spectrometer is disclosed comprising an ion detector (11) wherein a reflecting electrode (13) is used to divide an ion beam in the direction of mass dispersion into two separate ion beams. The two ion beams are directed onto two ... | 09/23/2008 |
| 7423259 | Mass spectrometer and method for enhancing dynamic range A mass spectrometer comprises an ion detector, a first amplifier, a second amplifier, and a spectra combiner. The ion detector is configured to generate an analog signal indicative of ions detected by the ion detector. The first amplifier is configured to amplify th... | 09/09/2008 |
| 7417235 | Particle detector for secondary ions and direct and or indirect secondary electrons A multi-purpose efficient charge particle detector that by switching bias voltages measures either secondary ions, or secondary electrons (SE) from a sample, or secondary electrons that originate from back scattered electrons (SE3), is described. The basic version o... | 08/26/2008 |
| 7417223 | Method, system and computer software product for specific identification of reaction pairs associated by specific neutral differences A first mass spectrum and a second mass spectrum of the same ion sample can be analyzed to determine reaction pairs. These reaction pairs are determined based on a selected neutral difference by shifting the second mass spectrum by the neutral difference relative to... | 08/26/2008 |
| 7402799 | MEMS mass spectrometer A MEMS mass spectrometer having metal walls connected between a lid and base, with the walls defining a plurality of interior chambers including sample gas input chambers, an ionizer chamber, a plurality of ion optics chambers and a ion separation chamber. A detecto... | 07/22/2008 |
| 7399957 | Coded mass spectroscopy methods, devices, systems and computer program products A coded mass spectrometer incorporates a spatial or temporal code to reduce the resolution/sensitivity dichotomy inherent in mass spectrometry. The code is used to code one or more portions of a mass spectrometer. Coding patterns, such as Hadamard codes, Walsh codes... | 07/15/2008 |
| 7381373 | System and method for preparative mass spectrometry A preparative mass spectrometer system includes an ionizer which converts the mixture into gas phase ions of the molecules in the mixture, and a separator which separates the ions according to their mass to charge ratio or mobility. The separator is a linear ion tra... | 06/03/2008 |
| 7378651 | High field asymmetric waveform ion mobility spectrometer FAIMS Disclosed is an apparatus for separating ions including a plurality of first electrode portions, each first electrode portion of the plurality of first electrode portions having a first length and an outer surface that is at least partially curved in a direction tra... | 05/27/2008 |
| 7361311 | System and method for the preparation of arrays of biological or other molecules A method of separating species in a mixture of molecules, particles or atoms and collecting the separated species is described. The method comprises the steps of converting by ionization the species in the mixture to gas phase ions, separating the gas phase ions acc... | 04/22/2008 |
| 7351957 | Broad ion fragmentation coverage in mass spectrometry by varying the collision energy In the field of mass spectrometry, a method of obtaining a mass spectrum enriched with fragment ions while retaining the precursor ion. The technique includes varying the collision energy experienced by the precursor ion such that a range of fragmentations occur. Re... | 04/01/2008 |
| 7348554 | Mass spectrometer A mass spectrometer includes: an ion source for ionizing a specimen to generate ions, an ion transport portion for transporting the ions, a linear ion trap portion for accumulating the transported ions by a potential formed axially, and a control portion of ejecting... | 03/25/2008 |
| 7326941 | Apparatus and methods for ion beam implantation using ribbon and spot beams This invention discloses an ion implantation apparatus with multiple operating modes. It has an ion source and an ion extraction means for extracting a ribbon-shaped ion beam therefrom. The ion implantation apparatus includes a magnetic analyzer for selecting ions w... | 02/05/2008 |
| 7312444 | Atmosperic pressure quadrupole analyzer The present invention relates to an apparatus and method for focusing, separating, and detecting gas-phase ions using the principles of electrohydrodynamic quadrupole fields at high pressures, at or near atmospheric pressure. Ions are entrained in a concentric flow ... | 12/25/2007 |
| 7291834 | Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisitions A detection scheme for time-of-flight mass spectrometers is described that extends the dynamic range of spectrometers that use counting techniques while avoiding the problems of crosstalk. It is well known that a multiple anode detector capable of detecting differen... | 11/06/2007 |
| 7282709 | Charged particle beam detection system A charged particle beam detection system that includes a Faraday cup detector array (FCDA) for position-sensitive charged particle beam detection is described. The FCDA is combined with an electronic multiplexing unit (MUX) that allows collecting and integrating the... | 10/16/2007 |
| 7265345 | Ion-mobility spectrometer and ion-mobility analysis method There is provided an ion-mobility spectrometer. This apparatus includes the following configuration components: An ion source for generating first ions, a first drift unit for separating the first ions by flight drift times, an ion dissociation unit for generating s... | 09/04/2007 |
| 7259369 | Dual mode ion mobility spectrometer and method for ion mobility spectrometry Ion mobility spectrometer apparatus may include an ion interface that is operable to hold positive and negative ions and to simultaneously release positive and negative ions through respective positive and negative ion ports. A first drift chamber is operatively ass... | 08/21/2007 |
| 7256396 | Sensitive glow discharge ion source for aerosol and gas analysis A high sensitivity glow discharge ion source system for analyzing particles includes an aerodynamic lens having a plurality of constrictions for receiving an aerosol including at least one analyte particle in a carrier gas and focusing the analyte particles into a c... | 08/14/2007 |
| 7242008 | Bipolar ion detector The present invention is directed to a bipolar ion detector capable of detecting both positive and negative ions in a single configuration. The invention uses either a single microchannel plates or a stack of microchannel plates to convert the ion signal into an amp... | 07/10/2007 |
| 7223972 | Stabilization of a magnetic section of a mass spectrometer An analytical instrument, such as a mass spectrometer, the instrument having a magnetic section with a controllable electromagnetic field. Controlling the electromagnetic field is accomplished by controlling a temperature of a base plate within the magnetic section,... | 05/29/2007 |
| 7220970 | Process and device for measuring ions The invention relates to a method and a device for the measurement of ions by coupling different measurement methods/techniques, a first detector being a collector (17) and a second detector being an SEM (18), and the ions to be measured or resulting s... | 05/22/2007 |
| 7218113 | Magnetic resonance system and operating method for RF pulse optimization In a magnetic resonance system and an operating method therefor, a B1 field distribution of a radio-frequency antenna is measured in at least one part of a examination volume of the magnetic resonance system, and then the RF pulses emitted by the radio-fr... | 05/15/2007 |
| 7201879 | Aerosol into liquid collector for depositing particles from a large volume of gas into a small volume of liquid An aerosol-into-liquid collector (ALC) for collecting gas-borne particles from a large volume of gas such as air into a small volume of liquid is described. The ALC uses a linear quadrupole to concentrate particles flowing in a gas and to help direct these concentra... | 04/10/2007 |
| 7201878 | Aerosol particle analyzer for measuring an analyte in airborne particles Aerosol particle analyzer (APA) for measuring an analyte in airborne particle is described. Airborne particles are first given an electrical charge and then drawn in air past an oppositely charged volume of an analysis liquid that exposed to the air at a small hole ... | 04/10/2007 |
| 7199361 | Broad ion fragmentation coverage in mass spectrometry by varying the collision energy In the field of mass spectrometry, a method of obtaining a mass spectrum enriched with fragment ions while retaining the precursor ion. The technique includes varying the collision energy experienced by the precursor ion such that a range of fragmentations occur. Re... | 04/03/2007 |
| 7176452 | Microfabricated beam modulation device A beam modulation device gate is constructed from a silicon material, such as a silicon layer on an silicon on insulator wafer. The device further comprises a set of electrical contacts on the layer. The layer defines a set of electrically conducting silicon materia... | 02/13/2007 |
| 7157697 | Ion detector An ion detector for a mass spectrometer is disclosed comprising one or more microchannel plates and an anode arranged to receive electrons emitted from the one or more microchannel plates. The anode preferably has a smaller diameter than the microchannel plates and ... | 01/02/2007 |
| 7153475 | Aerosol particle analyzer for measuring the amount of analyte in airborne particles Aerosol particle analyzer (APA) for measuring the amount of analyte in airborne particle is described. The APA uses an analysis liquid. In most embodiments, this analysis liquid is chosen so that when it is mixed with the particles, an optical property of the analys... | 12/26/2006 |
| 7145134 | Multi-anode detector with increased dynamic range for time-of-flight mass spectrometers with counting data acquisitions A detection scheme for time-of-flight mass spectrometers is described that extends the dynamic range of spectrometers that use counting techniques while avoiding the problems of crosstalk. It is well known that a multiple anode detector capable of detecting differen... | 12/05/2006 |
| 7141787 | Detector for a co-axial bipolar time-of-flight mass spectrometer A detector for a coaxial bipolar time-of-flight mass spectrometer is described. The detector includes a microchannel plate, a scintillator disposed in parallel relation to said microchannel plate, and a mirror oriented at an angle relative to said scintillator. The ... | 11/28/2006 |
| 7141785 | Ion detector An ion detector for a mass spectrometer is disclosed comprising a microchannel plate 8 which receives ions 12 at an input surface and releases electrons 16 from an output surface. A detecting device is arranged to receive at least some of the el... | 11/28/2006 |
| 7125518 | Aerosol particle analyzer for measuring the amount of analyte in airborne particles Aerosol particle analyzer (APA) for measuring the amount of analyte in airborne particle is described. The APA uses an analysis liquid. When this analysis liquid is mixed with the particles, an optical property of the analysis liquid (CDAL) varies according to the a... | 10/24/2006 |
| 7119333 | Ion detector for ion beam applications Detection of weak ion currents scattered from a sample by an ion beam is improved by the use of a multiplier system in which a conversion electrode converts incident ions to a number of secondary electrons multiplied by a multiplication factor, the secondary electro... | 10/10/2006 |
| 7112789 | High aspect ratio, high mass resolution analyzer magnet and system for ribbon ion beams The present invention provides a windowframe magnet having an aligned array of paired bedstead coils in mirror symmetry can bend a high aspect ratio ribbon ion beam through angle of not less than about 45 degrees and not more than about 110 degrees, and can focus it... | 09/26/2006 |
| 7081623 | Wafer-based ion traps An apparatus for an ion trap includes a semiconductor or dielectric wafer with front and back surfaces, a sequence of alternating conductive and dielectric layers formed over said front surface, and a bottom conductive layer. The sequence includes top and middle con... | 07/25/2006 |
| 7057170 | Compact ion gauge using micromachining and MISOC devices A solid state compact ion gauge includes an electron source, a gate electrode, an electron collector, a gas ionizer, an ion anode, and a detector all formed within a cavity of a semiconductor substrate formed of two halves bonded together and having open sides for r... | 06/06/2006 |
