Time of flight mass spectrometer and multiple detector therefor

Details Time of flight mass spectrometer and multiple detector therefor Time of flight mass spectrometer and multiple detector therefor

2005-09-06

2005-09-06

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S281000, C250S282000, C250S293000

Reexamination Certificate

active

06940066

ABSTRACT:
An ion detection arrangement140for a time-of-flight (TOF) mass spectrometer10includes a beam splitter formed as a mesh150at the end of the TOF acceleration and detection chamber110. Ions enter the detection arrangement through a common entrance window and are then divided by the beam splitter. Those ions striking the mesh150generate secondary electrons160which are detected by a microchannel plate forming a first detector170. Those ions passing through the ion beam splitter are detected directly by a second detector190also formed from a microchannel plate.The two detectors are each connected to a corresponding data acquisition system180, 200and the data obtained by each are combined to generate a mass spectrum. The problems of detector saturation are thus avoided.

REFERENCES:
patent: 4691160 (1987-09-01), Ino
patent: 4851673 (1989-07-01), Izumi et al.
patent: 5026988 (1991-06-01), Mendenhall et al.
patent: 5077470 (1991-12-01), Cody et al.
patent: 5463219 (1995-10-01), Buckley et al.
patent: 5644128 (1997-07-01), Wollnik et al.
patent: 5644220 (1997-07-01), Urs et al.
patent: 5777326 (1998-07-01), Rockwood et al.
patent: 5898173 (1999-04-01), Franzen
patent: 6011259 (2000-01-01), Whitehouse et al.
patent: 6229142 (2001-05-01), Bateman et al.
patent: 6348688 (2002-02-01), Vestal
patent: 6559444 (2003-05-01), Franzen
patent: 6646252 (2003-11-01), Gonin
patent: 2002/0175292 (2002-11-01), Whitehouse et al.
patent: 0597667 (1994-05-01), None
patent: 0907511 (1962-10-01), None
patent: 1147667 (1969-04-01), None
patent: 2246468 (1992-01-01), None
patent: WO98/21742 (1998-05-01), None
patent: WO 98/40907 (1998-09-01), None
patent: WO 99/38190 (1999-07-01), None
patent: WO 99/38191 (1999-07-01), None
patent: WO 99/67801 (1999-12-01), None
Kristo et al., “System for Simultaneous Count/Current Measurement with a Dual-Mode Photon/Particle Detector”, Review of Scientific Instruments, American Institute of Physics, US, vol. 59, No. 3, Mar. 1988, pp. 438-442.

Affiliated with

Also associated with

Rating

Time of flight mass spectrometer and multiple detector therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time of flight mass spectrometer and multiple detector therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time of flight mass spectrometer and multiple detector therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3447449