Method and apparatus for confinement of ions in the presence of a neutral gas
Abstract
The present invention is an apparatus and method for combining ions with a neutral gas and flowing the mixture with a radial flow component through a magnetic field so that the weakly ionized gas is confined by the neutral gas. When the weakly ionized gas is present in sufficient density, a weakly ionized non-neutral plasma is formed that may be trapped in accordance with the present invention. Applications for a weakly ionized non-neutral plasma exploit the trap's ability to store and manipulate ionic species in the presence of neutral gas. The trap may be connected to a mass spectrometer thereby permitting species identification after a fixed period of time. Delicate and/or heavy particles such as clusters may be held and studied in a "gentle" environment. In addition, the trap can provide a relatively intense, low-energy source of a particular ion species for surface implantation or molecular chemistry. Finally, a long trap may permit spectroscopy of unprecedented accuracy to be performed on ionic species.
- Inventors:
-
- Richland, WA
- Issue Date:
- Research Org.:
- Battelle Memorial Institute, Columbus, OH (United States)
- OSTI Identifier:
- 872420
- Patent Number(s):
- 5931986
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; confinement; presence; neutral; gas; combining; flowing; mixture; radial; flow; component; magnetic; field; weakly; ionized; confined; sufficient; density; non-neutral; plasma; formed; trapped; accordance; applications; exploit; trap; ability; store; manipulate; ionic; species; connected; mass; spectrometer; permitting; identification; fixed; period; time; delicate; heavy; particles; clusters; held; studied; gentle; environment; addition; provide; relatively; intense; low-energy; source; particular; surface; implantation; molecular; chemistry; finally; permit; spectroscopy; unprecedented; accuracy; performed; neutral gas; ionized gas; sufficient density; mass spectrometer; magnetic field; energy source; radial flow; ionic species; flow component; /95/96/
Citation Formats
Peurrung, Anthony J, and Barlow, Stephan E. Method and apparatus for confinement of ions in the presence of a neutral gas. United States: N. p., 1999.
Web.
Peurrung, Anthony J, & Barlow, Stephan E. Method and apparatus for confinement of ions in the presence of a neutral gas. United States.
Peurrung, Anthony J, and Barlow, Stephan E. Fri .
"Method and apparatus for confinement of ions in the presence of a neutral gas". United States. https://www.osti.gov/servlets/purl/872420.
@article{osti_872420,
title = {Method and apparatus for confinement of ions in the presence of a neutral gas},
author = {Peurrung, Anthony J and Barlow, Stephan E},
abstractNote = {The present invention is an apparatus and method for combining ions with a neutral gas and flowing the mixture with a radial flow component through a magnetic field so that the weakly ionized gas is confined by the neutral gas. When the weakly ionized gas is present in sufficient density, a weakly ionized non-neutral plasma is formed that may be trapped in accordance with the present invention. Applications for a weakly ionized non-neutral plasma exploit the trap's ability to store and manipulate ionic species in the presence of neutral gas. The trap may be connected to a mass spectrometer thereby permitting species identification after a fixed period of time. Delicate and/or heavy particles such as clusters may be held and studied in a "gentle" environment. In addition, the trap can provide a relatively intense, low-energy source of a particular ion species for surface implantation or molecular chemistry. Finally, a long trap may permit spectroscopy of unprecedented accuracy to be performed on ionic species.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
Works referenced in this record:
The non-neutral plasma: an introduction to physics with relevance to cyclotron resonance mass spectrometry
journal, December 1996
- Peurrung, A. J.; Kouzes, R. T.; Barlow, S. E.
- International Journal of Mass Spectrometry and Ion Processes, Vol. 157-158
Transport to thermal equilibrium of a pure electron plasma
journal, January 1979
- O’Neil, T. M.; Driscoll, C. F.
- Physics of Fluids, Vol. 22, Issue 2