Gated charged-particle trap
Abstract
The design and operation of a new type of charged-particle trap provides simultaneous measurements of mass, charge, and velocity of large electrospray ions. The trap consists of a detector tube mounted between two sets of center-bored trapping plates. Voltages applied to the trapping plates define symmetrically-opposing potential valleys which guide axially-injected ions to cycle back and forth through the charge-detection tube. A low noise charge-sensitive amplifier, connected to the tube, reproduces the image charge of individual ions as they pass through the detector tube. Ion mass is calculated from measurement of ion charge and velocity following each passage through the detector.
- Inventors:
-
- Danville, CA
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- OSTI Identifier:
- 872183
- Patent Number(s):
- 5880466
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- gated; charged-particle; trap; design; operation; type; provides; simultaneous; measurements; mass; charge; velocity; electrospray; consists; detector; tube; mounted; sets; center-bored; trapping; plates; voltages; applied; define; symmetrically-opposing; potential; valleys; guide; axially-injected; cycle; forth; charge-detection; noise; charge-sensitive; amplifier; connected; reproduces; image; individual; pass; calculated; measurement; following; passage; simultaneous measurement; voltages applied; particle trap; simultaneous measurements; noise charge; trapping plate; provides simultaneous; charged-particle trap; detector tube; tube mounted; trap consists; /250/
Citation Formats
Benner, W Henry. Gated charged-particle trap. United States: N. p., 1999.
Web.
Benner, W Henry. Gated charged-particle trap. United States.
Benner, W Henry. Fri .
"Gated charged-particle trap". United States. https://www.osti.gov/servlets/purl/872183.
@article{osti_872183,
title = {Gated charged-particle trap},
author = {Benner, W Henry},
abstractNote = {The design and operation of a new type of charged-particle trap provides simultaneous measurements of mass, charge, and velocity of large electrospray ions. The trap consists of a detector tube mounted between two sets of center-bored trapping plates. Voltages applied to the trapping plates define symmetrically-opposing potential valleys which guide axially-injected ions to cycle back and forth through the charge-detection tube. A low noise charge-sensitive amplifier, connected to the tube, reproduces the image charge of individual ions as they pass through the detector tube. Ion mass is calculated from measurement of ion charge and velocity following each passage through the detector.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}
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