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Title: System 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:
 [1];  [2]
  1. (St. Petersburg, FL)
  2. (Palm Harbour, FL)
Issue Date:
Research Org.:
LOCKHEED MARTIN SPEC COMPONENT
OSTI Identifier:
871732
Patent Number(s):
5784424
Assignee:
United States of America as represented by United States (Washington, DC) SNL
DOE Contract Number:  
AC04-92AL73000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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. System for studying a sample of material using a heavy ion induced mass spectrometer source. United States: N. p., 1998. Web.
Fries, David P., & Browning, James F. System for studying a sample of material using a heavy ion induced mass spectrometer source. United States.
Fries, David P., and Browning, James F. Thu . "System for studying a sample of material using a heavy ion induced mass spectrometer source". United States. https://www.osti.gov/servlets/purl/871732.
@article{osti_871732,
title = {System 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 = {1998},
month = {1}
}

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