Patents Assigned to Micromass Limited
  • Charged-particle detectors and mass spectrometers employing the same
    Patent number: 5757012
    Abstract: A Faraday Cup charged-particle detector for use in an isotopic ratio mass spectrometer is provided with a charged-particle collector substrate being at least partially composed of carbon produced by burning wood or other grained or cellular organic material so that the substrate surface has an open cellular structure and wherein the cells are of elongated tubular form. The detector is economic to manufacture, reliable and has an increased lifetime.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: May 26, 1998
    Assignee: Micromass Limited
    Inventors: Patrick James Turner, Raymond Clive Haines
  • Mass spectrometer
    Patent number: 5661298
    Abstract: A mass spectrometer is provided having a plurality of analyzers and including at least one magnetic sector analyzer and, typically, an orthogonal-acceleration time-of-flight mass analyzer. Bypass means are provided so that by switching of the direction of the ion beam, the magnetic sector analyzer may be bypassed and the time-of-flight analyzer used either to analyse the beam of ions from the source or daughter ions produced by fragmentation of that beam.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: August 26, 1997
    Assignee: Micromass Limited
    Inventor: Robert H. Bateman