Microscale ion trap mass spectrometer
Abstract
An ion trap for mass spectrometric chemical analysis of ions is delineated. The ion trap includes a central electrode having an aperture; a pair of insulators, each having an aperture; a pair of end cap electrodes, each having an aperture; a first electronic signal source coupled to the central electrode; a second electronic signal source coupled to the end cap electrodes. The central electrode, insulators, and end cap electrodes are united in a sandwich construction where their respective apertures are coaxially aligned and symmetric about an axis to form a partially enclosed cavity having an effective radius r.sub.0 and an effective length 2z.sub.0, wherein r.sub.0 and/or z.sub.0 are less than 1.0 mm, and a ratio z.sub.0 /r.sub.0 is greater than 0.83.
- Inventors:
-
- Knoxville, TN
- Lancing, TN
- Lansdale, PA
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 874828
- Patent Number(s):
- 6469298
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- microscale; trap; mass; spectrometer; spectrometric; chemical; analysis; delineated; central; electrode; aperture; pair; insulators; cap; electrodes; electronic; signal; source; coupled; united; sandwich; construction; apertures; coaxially; aligned; symmetric; axis; form; partially; enclosed; cavity; effective; radius; rsub0; length; 2zsub0; andor; zsub0; 10; ratio; 083; mass spectrometer; electronic signal; trap mass; central electrode; /250/
Citation Formats
Ramsey, J Michael, Witten, William B, and Kornienko, Oleg. Microscale ion trap mass spectrometer. United States: N. p., 2002.
Web.
Ramsey, J Michael, Witten, William B, & Kornienko, Oleg. Microscale ion trap mass spectrometer. United States.
Ramsey, J Michael, Witten, William B, and Kornienko, Oleg. Tue .
"Microscale ion trap mass spectrometer". United States. https://www.osti.gov/servlets/purl/874828.
@article{osti_874828,
title = {Microscale ion trap mass spectrometer},
author = {Ramsey, J Michael and Witten, William B and Kornienko, Oleg},
abstractNote = {An ion trap for mass spectrometric chemical analysis of ions is delineated. The ion trap includes a central electrode having an aperture; a pair of insulators, each having an aperture; a pair of end cap electrodes, each having an aperture; a first electronic signal source coupled to the central electrode; a second electronic signal source coupled to the end cap electrodes. The central electrode, insulators, and end cap electrodes are united in a sandwich construction where their respective apertures are coaxially aligned and symmetric about an axis to form a partially enclosed cavity having an effective radius r.sub.0 and an effective length 2z.sub.0, wherein r.sub.0 and/or z.sub.0 are less than 1.0 mm, and a ratio z.sub.0 /r.sub.0 is greater than 0.83.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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