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Title: Method and apparatus for detection of charge on ions and particles

Patent ·
OSTI ID:874878
 [1];  [2]
  1. 3938 Park Pl., Montrose, CA 91020
  2. 4003 Wanna Vista Dr., Vancouver, WA 98661

The present invention provides a tessellated array detector with charge collecting plate (or cup) electrode pixels and amplifying circuitry integrated into each pixel making it sensitive to external electrostatic charge; a micro collector/amplifier pixel design possessing a small capacitance to ensure a high charge to voltage signal conversion for low noise/high sensitivity operation; a micro-fabricated array of such pixels to create a useful macroscopic target area for ion and charged particle collection.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
DOE Contract Number:
AC03-76SF00098
Assignee:
Fuerstenau; Stephen Douglas (3938 Park Pl., Montrose, CA 91020); Soli; George Arthur (4003 Wanna Vista Dr., Vancouver, WA 98661)
Patent Number(s):
US 6480278
OSTI ID:
874878
Country of Publication:
United States
Language:
English

References (2)

Molecular weight determination of megadalton DNA electrospray ions using charge detection time-of-flight mass spectrometry journal January 1995
A novel ion imager for secondary ion mass spectrometry journal January 1993