Radiant energy – Ionic separation or analysis – Ion beam pulsing means with detector synchronizing means
Reexamination Certificate
2006-09-19
2006-09-19
Lee, John R. (Department: 2881)
Radiant energy
Ionic separation or analysis
Ion beam pulsing means with detector synchronizing means
C250S281000, C250S282000, C250S286000, C250S294000
Reexamination Certificate
active
07109475
ABSTRACT:
Disclosed are a time-of-flight mass spectrometer and signal processing electronics. The signal processing electronics include a plurality of time-to-digital converters configured to receive signal pulses from the same detector anode within the time-of-flight mass spectrometer. The signal processing electronics are further configured to differentiate, and compensate for, those signal pulses caused by the detection of more than one ion. Differentiation and compensation are achieved by using the time-to-digital converters to detect the leading and trailing edges of a signal pulse. The time difference between the detection of the leading edge and detection of the trailing edge is indicative of whether or not the signal pulse was generated by the detection of more than one ion.
REFERENCES:
patent: 3867613 (1975-02-01), Schoon
patent: 3887764 (1975-06-01), Gibbons et al.
patent: 4490806 (1984-12-01), Enke et al.
patent: 4691160 (1987-09-01), Ino
patent: 5365516 (1994-11-01), Jandrell
patent: 5367162 (1994-11-01), Holland et al.
patent: 5463219 (1995-10-01), Buckley et al.
patent: 5526357 (1996-06-01), Jandrell
patent: 5777326 (1998-07-01), Rockwood et al.
patent: 5982841 (1999-11-01), Terada et al.
patent: 6094627 (2000-07-01), Peck et al.
patent: 6172557 (2001-01-01), Terada et al.
patent: 6218869 (2001-04-01), Hongbin Hao et al.
patent: 6229142 (2001-05-01), Bateman et al.
patent: 6373052 (2002-04-01), Hoyes et al.
patent: 6434211 (2002-08-01), Lloyd et al.
patent: 6646252 (2003-11-01), Gonin
patent: 6865137 (2005-03-01), Lyon et al.
patent: 7012248 (2006-03-01), Paschalidis
patent: 2005/0061968 (2005-03-01), Green
patent: 2005/0211893 (2005-09-01), Paschalidis
patent: WO 98/40907 (1998-09-01), None
patent: WO 02/097856 (2002-12-01), None
Earley Lee
Hardman Mark E.
Land Adrian
Carr & Ferrell LLP
Katz Charles B.
Lee John R.
Souw Bernard E.
Thermo Finnigan LLC
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