Electron source for a mini ion trap mass spectrometer
Abstract
An ion trap is described which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10{sup 9} and commercial mass spectrometers requiring 10{sup 4} ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 10 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- OSTI Identifier:
- 170451
- Patent Number(s):
- 5477046
- Application Number:
- PAN: 8-427,326
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 19 Dec 1995
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; 44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; MASS SPECTROMETERS; TRAPS; ELECTRON SOURCES; DESIGN; SIZE; ENERGY CONSUMPTION; PORTABLE EQUIPMENT; ENVIRONMENTAL MATERIALS; DRUGS; PROCESS CONTROL; DIAGNOSTIC TECHNIQUES; ENGINES; EXHAUST GASES; USES; MONITORING
Citation Formats
Dietrich, D D, and Keville, R F. Electron source for a mini ion trap mass spectrometer. United States: N. p., 1995.
Web.
Dietrich, D D, & Keville, R F. Electron source for a mini ion trap mass spectrometer. United States.
Dietrich, D D, and Keville, R F. Tue .
"Electron source for a mini ion trap mass spectrometer". United States.
@article{osti_170451,
title = {Electron source for a mini ion trap mass spectrometer},
author = {Dietrich, D D and Keville, R F},
abstractNote = {An ion trap is described which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:10{sup 9} and commercial mass spectrometers requiring 10{sup 4} ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}