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Title: Non-destructive ion trap mass spectrometer and method

The invention relates to an ion trap mass spectrometer of the type having an ion trapping volume defined by spaced end caps and a ring electrode. The ion trap includes a small sensing electrode which senses characteristic motion of ions trapped in said trapping volume and provides an image current. Ions are excited into characteristic motion by application of an excitation pulse to the trapped ions. The invention also relates to a method of operating such an ion trap.
Inventors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. (West Lafayette, IN)
Issue Date:
OSTI Identifier:
870924
Assignee:
Purdue Research Foundation (West Lafayette, IN) CHO
Patent Number(s):
US 5625186
Contract Number:
FG02-94ER14470
Research Org:
Purdue Research Foundation (West Lafayette, IN)
Country of Publication:
United States
Language:
English
Subject:
non-destructive; trap; mass; spectrometer; method; relates; type; trapping; volume; defined; spaced; caps; electrode; sensing; senses; characteristic; motion; trapped; provides; image; current; excited; application; excitation; pulse; operating; volume defined; mass spectrometer; trap mass; sensing electrode; excitation pulse; /250/