Application of electron energy loss spectroscopy to microanalysis of irradiated stainless steels

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5845685

Kenik, E A; Bentley, J ^[1]; Evans, N D ^[2]

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1. Oak Ridge National Lab., TN (USA)
2. Oak Ridge Associated Universities, Inc., TN (USA)

Energy dispersive X-ray spectroscopy (EDXS) has limited application to microanalysis of radioactive materials because of degraded detector performance and the intrinsic'' spectrum associated with the radioactive decay. Electron energy loss spectroscopy (EELS) is not affected by specimen radioactivity and also offers the possibility of improved spatial resolution. Measurements of radiation-induced segregation (RIS) in irradiated stainless steels have been made by both techniques. Analytical electron microscopy was performed at 100 kV in a Philips EM400T/FEG, equipped with an EDAX 9100/70 EDXS system and a Gatan 666 parallel detection EELS (PEELS). Microanalysis was performed in the STEM mode (<2-nm-diam probe with >0.5 nA) with the same acquisition time (50 s) used for both techniques.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE; USDOE, Washington, DC (USA)
• DOE Contract Number: AC05-84OR21400; AC05-76OR00033
• OSTI ID: 5845685
• Report Number(s): CONF-910870-2; ON: DE91009913
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals &amp; Alloys-- Radiation Effects
440101 -- Radiation Instrumentation-- General Detectors or Monitors &amp; Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALLOYS
CRYSTAL STRUCTURE
DAMAGING NEUTRON FLUENCE
ELECTRON SPECTROSCOPY
ENERGY-LOSS SPECTROSCOPY
GRAIN BOUNDARIES
HIGH ALLOY STEELS
IRON ALLOYS
IRON BASE ALLOYS
MICROSTRUCTURE
NEUTRON FLUENCE
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SPECTROSCOPY
STAINLESS STEELS
STEELS