Method for studying a sample of material using a heavy ion induced mass spectrometer source
Patent
·
OSTI ID:872158
- St. Petersburg, FL
- Palm Harbour, FL
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.
- Research Organization:
- LOCKHEED MARTIN SPEC COMPONENT
- DOE Contract Number:
- AC04-92AL73000
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5872824
- OSTI ID:
- 872158
- Country of Publication:
- United States
- Language:
- English
252Cf-Plasma desorption mass spectrometry using polymer surfaces
|
journal | May 1988 |
Plasma desorption mass spectrometry: coming of age
|
journal | July 1988 |
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Related Subjects
/376/250/
000
25
amu
analysis
analyzer
appropriate
appropriate neutron
bombard
causing
comprises
desorb
desorbed
desorption
desorption mass
direction
emitted
fissionable
fissionable material
flight mass
flux
generator
generator comprises
heavy
impinge
induced
induced mass
ionize
mass
mass analysis
mass analyzer
mass spectrometer
masses
material
material pass
measured
method
molecules
neutron
neutron flux
neutron generator
neutrons
pass
plasma
plasma desorption
provide
pulsed
pulsed neutron
pulses
reaction
sample
section
source
spectrometer
spectrometer source
studying
time-of-flight
time-of-flight mass
000
25
amu
analysis
analyzer
appropriate
appropriate neutron
bombard
causing
comprises
desorb
desorbed
desorption
desorption mass
direction
emitted
fissionable
fissionable material
flight mass
flux
generator
generator comprises
heavy
impinge
induced
induced mass
ionize
mass
mass analysis
mass analyzer
mass spectrometer
masses
material
material pass
measured
method
molecules
neutron
neutron flux
neutron generator
neutrons
pass
plasma
plasma desorption
provide
pulsed
pulsed neutron
pulses
reaction
sample
section
source
spectrometer
spectrometer source
studying
time-of-flight
time-of-flight mass