Method for on-line evaluation of materials using prompt gamma ray analysis
Abstract
A method for evaluating a material specimen comprises: Mounting a neutron source and a detector adjacent the material specimen; bombarding the material specimen with neutrons from the neutron source to create prompt gamma rays within the material specimen, some of the prompt gamma rays being emitted from the material specimen, some of the prompt gamma rays resulting in the formation of positrons within the material specimen by pair production; collecting positron annihilation data by detecting with the detector at least one emitted annihilation gamma ray resulting from the annihilation of a positron; storing the positron annihilation data on a data storage system for later retrieval and processing; and continuing to collect and store positron annihilation data, the continued collected and stored positron annihilation data being indicative of an accumulation of lattice damage over time.
- Inventors:
-
- Idaho Falls, ID
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1013824
- Patent Number(s):
- 7630469
- Application Number:
- US Patent Application 10/788,743
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- DOE Contract Number:
- AC07-99ID13727
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Akers, Douglas W. Method for on-line evaluation of materials using prompt gamma ray analysis. United States: N. p., 2009.
Web.
Akers, Douglas W. Method for on-line evaluation of materials using prompt gamma ray analysis. United States.
Akers, Douglas W. Tue .
"Method for on-line evaluation of materials using prompt gamma ray analysis". United States. https://www.osti.gov/servlets/purl/1013824.
@article{osti_1013824,
title = {Method for on-line evaluation of materials using prompt gamma ray analysis},
author = {Akers, Douglas W},
abstractNote = {A method for evaluating a material specimen comprises: Mounting a neutron source and a detector adjacent the material specimen; bombarding the material specimen with neutrons from the neutron source to create prompt gamma rays within the material specimen, some of the prompt gamma rays being emitted from the material specimen, some of the prompt gamma rays resulting in the formation of positrons within the material specimen by pair production; collecting positron annihilation data by detecting with the detector at least one emitted annihilation gamma ray resulting from the annihilation of a positron; storing the positron annihilation data on a data storage system for later retrieval and processing; and continuing to collect and store positron annihilation data, the continued collected and stored positron annihilation data being indicative of an accumulation of lattice damage over time.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 08 00:00:00 EST 2009},
month = {Tue Dec 08 00:00:00 EST 2009}
}
Works referenced in this record:
Study of the Van Cittert and Gold iterative methods of deconvolution and their application in the deconvolution of experimental spectra of positron annihilation
journal, January 1997
- Bandžuch, P.; Morháč, M.; Krištiak, J.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 384, Issue 2-3
Analysis of positron annihilation lifetime data presented as a sum of convoluted exponentials with the program “SPLMOD”
journal, December 1989
- Zhu, Yongkang; Gregory, Roger B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 284, Issue 2-3
Analysis of positron annihilation lifetime data by numerical laplace inversion with the program CONTIN
journal, May 1990
- Gregory, Roger B.; Zhu, Yongkang
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 290, Issue 1
A positron annihilation lifetime spectroscopy study of porous silicon using a continuous lifetime fitting algorithm
journal, January 1996
- Derlet, P. M.; Choy, T. C.
- Journal of Materials Science Letters, Vol. 15, Issue 22