Patents by Inventor Adi Scheidemann
Adi Scheidemann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9330892Abstract: An inorganic mass spectrometer capable of measuring a relevant and large or the full mass spectral range simultaneously may include a suitable ion source (e.g., an ICP mass spectrometer with an ICP ion source), an ion transfer region, ion optics to separate ions out of a plasma beam, a Mattauch-Herzog type mass spectrometer with a set of charged particle beam optics to condition the ion beam before an entrance slit, and a solid state multi-channel detector substantially separated from ground potential and separated from the potential of the magnet.Type: GrantFiled: July 3, 2014Date of Patent: May 3, 2016Assignee: SPECTRO ANALYTICAL INSTRUMENTS GMBHInventors: Dirk Ardelt, Ulrich Heynen, Adi A. Scheidemann
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Publication number: 20140312219Abstract: An inorganic mass spectrometer capable of measuring a relevant and large or the full mass spectral range simultaneously may include a suitable ion source (e.g., an ICP mass spectrometer with an ICP ion source), an ion transfer region, ion optics to separate ions out of a plasma beam, a Mattauch-Herzog type mass spectrometer with a set of charged particle beam optics to condition the ion beam before an entrance slit, and a solid state multi-channel detector substantially separated from ground potential and separated from the potential of the magnet.Type: ApplicationFiled: July 3, 2014Publication date: October 23, 2014Applicant: SPECTRO ANALYTICAL INSTRUMENTS GMBHInventors: Dirk ARDELT, Ulrich HEYNEN, Adi A. Scheidemann
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Publication number: 20110155903Abstract: An inorganic mass spectrometer capable of measuring a relevant and large or the full mass spectral range simultaneously may include a suitable ion source (e.g., an ICP mass spectrometer with an ICP ion source), an ion transfer region, an ion optics to separate ions out of a plasma beam, a Mattauch Herzog type mass spectrometer with a set of charged particle beam optics to condition the ion beam before the entrance slit, and a solid state multi channel detector substantially separated from ground potential and separated from the potential of the magnet is introduced.Type: ApplicationFiled: December 30, 2010Publication date: June 30, 2011Applicant: Spectro Analytical Instruments GmbHInventors: Dirk Ardelt, Ulrich Heynen, Adi A. Scheidemann
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Patent number: 7550722Abstract: 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 magnet of the mass spectrometer pass through the mesh before contacting the ion detector. The mesh is maintained at a low voltage potential, relative to a circuit ground, which shields ions passing through the magnet from high voltage charges from other devices, such as microchannel plate electron multipliers. The mesh may be mounted directly to the magnet or positioned some distance away. The detector array may include any suitable device, including a faraday cup detector array, a strip charge detector array, or a CCD detector array.Type: GrantFiled: March 4, 2005Date of Patent: June 23, 2009Assignee: OI CorporationInventors: Adi A. Scheidemann, Gottfried P. Kibelka, Clare R. Long, Mark W. Dassel
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Patent number: 7511278Abstract: An apparatus for detecting particles, comprising a plurality of electrically conductive structures disposed on a support element. The structures are electrically insulated from one another and each structure can be electrically connected to an electronic read-out device. The structures receive a beam of particles in a direction forming an angle of incidence with the support element. A trough is disposed between each two successive structures as viewed in the beam direction. And at least partial overlap exists between each two successive structures. The apparatus can be disposed in the focal plane of a mass spectrometer.Type: GrantFiled: January 30, 2006Date of Patent: March 31, 2009Assignee: Spectro Analytical Instruments GmbH & Co. KGInventors: Adi A. Scheidemann, Dirk Ardelt, M. Bonner Denton
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Patent number: 7442920Abstract: 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 include signal-processing electronics. The system may include an electrical cable coupled to the PCB base plate for supplying power, control, and I/O to the ion optic assembly and the signal processing electronics. Alternatively, a mass spectrometer system includes a PCB base plate and an ion optic assembly. The PCB base plate has a sealant portion and an electrical portion. The ion optic assembly is coupled to the electrical portion. The system may include a vacuum housing for enclosing the ion optic assembly. The vacuum housing is coupled to the sealant portion of the PCB base plate for sustaining a vacuum while the system is in operation.Type: GrantFiled: August 16, 2005Date of Patent: October 28, 2008Assignee: O. I. CorporationInventors: Adi A. Scheidemann, Mark S. McGraw, Clare R. Long, Gottfried P. Kibelka
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Patent number: 7372019Abstract: An ICP mass spectrometer comprising an ICP ion source, a mass analyzer having a magnetic sector field, a detector, an extraction element in the form of an ion funnel for transferring the generated ions into the mass analyzer and arranged between the ICP ion source and the mass analyzer, and a transport optics arranged between the ion funnel and the mass analyzer.Type: GrantFiled: May 18, 2006Date of Patent: May 13, 2008Assignee: Spectro Analytical Instruments GmbH & Co. KGInventors: Adi A. Scheidemann, Dirk Ardelt
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Patent number: 7339521Abstract: Novel methods and structures are disclosed herein which employ pseudorandom sequences to spatially arrange multiple sources in a pseudorandom source array. The pseudorandom source array can replace the single source in analytical instruments relying on spatial separation of the sample or the probe particles/waves emitted by the sources. The large number of sources in this pseudorandom source array enhances the signal on a position sensitive detector. A mathematical deconvolution process retrieves a spectrum with improved signal-to-noise ratio from the detector signal.Type: GrantFiled: February 20, 2003Date of Patent: March 4, 2008Inventors: Adi Scheidemann, Henry Hess
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Patent number: 7282709Abstract: 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 charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit, which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector. The device measures further absolute ion currents, has a wide dynamic range from 1.Type: GrantFiled: June 30, 2003Date of Patent: October 16, 2007Assignee: University of WashingtonInventors: Robert Bruce Darling, Adi A. Scheidemann, Frank J. Schumacher, IV, Patrick L. Jones
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Publication number: 20070176089Abstract: The invention relates to an apparatus for detecting particles, comprising a support element (1) and a plurality of electrically conductive structures (2) arranged on the support element (1), wherein the structures (2) are electrically insulated from each other and wherein each of the structures (2) can be electrically connected to an electronic read-out device, wherein an angle of incidence (?) is given between a beam direction of the particles and the support element (1), wherein a trough (3) is in each case arranged between a first structure (2) and a structure (2) adjacent to the first structure in the beam direction, wherein there is an at least partial overlap of the first structure (2) and the adjacent structure (2) in the beam direction.Type: ApplicationFiled: January 30, 2006Publication date: August 2, 2007Inventors: Adi Scheidemann, Dirk Ardelt, M. Denton
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Publication number: 20060284076Abstract: An ICP mass spectrometer comprising an ICP ion source, a mass analyzer having a magnetic sector field, a detector, an extraction element in the form of an ion funnel for transferring the generated ions into the mass analyzer and arranged between the ICP ion source and the mass analyzer, and a transport optics arranged between the ion funnel and the mass analyzer.Type: ApplicationFiled: May 18, 2006Publication date: December 21, 2006Inventors: Adi Scheidemann, Dirk Ardelt
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Publication number: 20060076483Abstract: 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 include signal-processing electronics. The system may include an electrical cable coupled to the PCB base plate for supplying power, control, and I/O to the ion optic assembly and the signal processing electronics. Alternatively, a mass spectrometer system includes a PCB base plate and an ion optic assembly. The PCB base plate has a sealant portion and an electrical portion. The ion optic assembly is coupled to the electrical portion. The system may include a vacuum housing for enclosing the ion optic assembly. The vacuum housing is coupled to the sealant portion of the PCB base plate for sustaining a vacuum while the system is in operation.Type: ApplicationFiled: August 16, 2005Publication date: April 13, 2006Applicant: O. I. CorporationInventors: Adi Scheidemann, Mark McGraw, Clare Long, Gottfried Kibelka
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Publication number: 20060011826Abstract: 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 magnet of the mass spectrometer pass through the mesh before contacting the ion detector. The mesh is maintained at a low voltage potential, relative to a circuit ground, which shields ions passing through the magnet from high voltage charges from other devices, such as microchannel plate electron multipliers. The mesh may be mounted directly to the magnet or positioned some distance away. The detector array may include any suitable device, including a faraday cup detector array, a strip charge detector array, or a CCD detector array.Type: ApplicationFiled: March 4, 2005Publication date: January 19, 2006Applicant: OI CorporationInventors: Adi Scheidemann, Gottfried Kibelka, Clare Long, Mark Dassel
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Publication number: 20060011829Abstract: An integral gas chromatograph/mass spectrometer system is assembled by attaching a gas chromatograph assembly on one side and a mass spectrometer assembly on the other side of a master flange. The gas chromatograph assembly is accurately positioned on a holder board integrally connected to the master flange. The mass spectrometry assembly is accurately positioned on a base plate that is integrally connected to the master flange.Type: ApplicationFiled: March 4, 2005Publication date: January 19, 2006Applicant: OI CorporationInventors: Adi Scheidemann, Gottfried Kibelka, Clare Long
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Patent number: 6979818Abstract: A mass spectrometer suitable to measure both positive and negative particles, such as ions for example in a vacuum chamber. This spectrometer is provided with a turnable permanent magnet segment, which provides the gap of a yoke with adequate magnetic flux having the appropriate direction to separate the positive or the negative particles. Changing the polarity adjusts the flight path of the ions. Thus, negatively charged ions and positively charged ions will follow similar flight paths under opposite polarities, permitting the use of a single array of detectors. One or more coils may be used in place of or in addition to the turnable permanent magnet segment in order to provide the appropriate magnetic flux to the gap, and/or facilitate the turning process of the turnable magnet segment. The turnable magnet and/or the coils may be inside or outside the vacuum chamber.Type: GrantFiled: June 3, 2004Date of Patent: December 27, 2005Assignee: OI CorporationInventors: Adi A. Scheidemann, Mark W. Dassel, Mark Wadsworth, Eustathios Vassiliou
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Publication number: 20050274888Abstract: 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 charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit, which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector. The device measures further absolute ion currents, has a wide dynamic range from 1.Type: ApplicationFiled: June 30, 2003Publication date: December 15, 2005Inventors: Robert Darling, Adi Scheidemann, Frank Schumacher, Patrick Jones
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Patent number: 6906333Abstract: A magnetic sector for charged particle beam transport that includes a magnetic field profile that achieves a linear dispersion from a collimated beam of charged particles proportional to their mass-energy-to-charge ratio. In one embodiment, the field profile necessary for the linear dispersion is obtained by the use of shaped, highly permeable poles powered by permanent magnets or electromagnetic coils.Type: GrantFiled: January 22, 2004Date of Patent: June 14, 2005Assignees: University of Washington, STI Optronics Inc.Inventors: Adi A. Scheidemann, Kem Robinson, Patrick L. Jones, Stephen C. Gottschalk
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Publication number: 20050119868Abstract: Novel methods and structures are disclosed herein which employ pseudorandom sequences to spatially arrange multiple sources in a pseudorandom source array. The pseudorandom source array can replace the single source in analytical instruments relying on spatial separation of the sample or the probe particles/waves emitted by the sources. The large number of sources in this pseudorandom source array enhances the signal on a position sensitive detector. A mathematical deconvolution process retrieves a spectrum with improved signal-to-noise ratio from the detector signal.Type: ApplicationFiled: February 20, 2003Publication date: June 2, 2005Inventors: Adi Scheidemann, Henry Hess
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Publication number: 20050017166Abstract: A mass spectrometer suitable to measure both positive and negative particles, such as ions for example in a vacuum chamber. This spectrometer is provided with a turnable permanent magnet segment, which provides the gap of a yoke with adequate magnetic flux having the appropriate direction to separate the positive or the negative particles. Changing the polarity adjusts the flight path of the ions. Thus, negatively charged ions and positively charged ions will follow similar flight paths under opposite polarities, permitting the use of a single array of detectors. One or more coils may be used in place of or in addition to the turnable permanent magnet segment in order to provide the appropriate magnetic flux to the gap, and/or facilitate the turning process of the turnable magnet segment. The turnable magnet and/or the coils may be inside or outside the vacuum chamber.Type: ApplicationFiled: June 3, 2004Publication date: January 27, 2005Inventors: Adi Scheidemann, Mark Dassel, Mark Wadsworth, Eustathios Vassiliou
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Patent number: 6847036Abstract: A charged particle beam detection system (10) 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) (2) that allows collecting and intgrating the charge deposited in the array, and simultaneously reading out the same. The duty cycle for collecting the ions is greater than 98%. This multiplexing (2) is achieved by collecting the charge with a large number of small and electronically decoupled Faraday cups. Because Faraday cups collect the charge independent of their charge state, each cup is both a collector and an integrator. The ability of the Faraday cup to integrate the charge, in combination with the electronic multiplexing unit (2), which reads out and empties the cups quickly compared to the charge integration time, provides the almost perfect duty cycle for this position-sensitive charged particle detector (10).Type: GrantFiled: October 6, 1999Date of Patent: January 25, 2005Assignee: University of WashingtonInventors: Robert Bruce Darling, Adi A. Scheidemann, Frank J. Schumacher IV, Patrick L. Jones