Method for studying a sample of material using a heavy ion induced mass spectrometer source
Abstract
A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion generator comprises a fissionable material having a high n,f reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu.
- Inventors:
-
- St. Petersburg, FL
- Palm Harbour, FL
- Issue Date:
- Research Org.:
- LOCKHEED MARTIN SPEC COMPONENT
- OSTI Identifier:
- 872158
- Patent Number(s):
- 5872824
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G21 - NUCLEAR PHYSICS G21G - CONVERSION OF CHEMICAL ELEMENTS
- DOE Contract Number:
- AC04-92AL73000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; studying; sample; material; heavy; induced; mass; spectrometer; source; generator; plasma; desorption; provide; appropriate; neutron; flux; direction; fissionable; desorb; ionize; molecules; analysis; comprises; reaction; section; pulsed; bombard; pulses; neutrons; causing; emitted; impinge; desorbed; pass; time-of-flight; analyzer; measured; masses; 25; 000; amu; time-of-flight mass; generator comprises; mass spectrometer; neutron flux; fissionable material; pulsed neutron; neutron generator; mass analyzer; spectrometer source; flight mass; mass analysis; material pass; induced mass; plasma desorption; appropriate neutron; desorption mass; /376/250/
Citation Formats
Fries, David P, and Browning, James F. Method for studying a sample of material using a heavy ion induced mass spectrometer source. United States: N. p., 1999.
Web.
Fries, David P, & Browning, James F. Method for studying a sample of material using a heavy ion induced mass spectrometer source. United States.
Fries, David P, and Browning, James F. Fri .
"Method for studying a sample of material using a heavy ion induced mass spectrometer source". United States. https://www.osti.gov/servlets/purl/872158.
@article{osti_872158,
title = {Method for studying a sample of material using a heavy ion induced mass spectrometer source},
author = {Fries, David P and Browning, James F},
abstractNote = {A heavy ion generator is used with a plasma desorption mass spectrometer to provide an appropriate neutron flux in the direction of a fissionable material in order to desorb and ionize large molecules from the material for mass analysis. The heavy ion generator comprises a fissionable material having a high n,f reaction cross section. The heavy ion generator also comprises a pulsed neutron generator that is used to bombard the fissionable material with pulses of neutrons, thereby causing heavy ions to be emitted from the fissionable material. These heavy ions impinge on a material, thereby causing ions to desorb off that material. The ions desorbed off the material pass through a time-of-flight mass analyzer, wherein ions can be measured with masses greater than 25,000 amu.},
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}
}
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Works referenced in this record:
252Cf-Plasma desorption mass spectrometry using polymer surfaces
journal, May 1988
- Macfarlane, Ronald D.
- TrAC Trends in Analytical Chemistry, Vol. 7, Issue 5
Plasma desorption mass spectrometry: coming of age
journal, July 1988
- Cotter, Robert J.
- Analytical Chemistry, Vol. 60, Issue 13