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Proceedings Paper

Residual strain/stress analysis by means of energy-dispersive neutron transmission diffraction (EDNTD)
Author(s): Volker Wagner; Z. Kouril; Petr Lukas; Pavel Mikula; Jan Saroun; Pavel Strunz; Miroslav Vrana
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Paper Abstract

Some results are presented of strain measurements carried out using a novel, modified version of the energy- dispersive neutron transmission diffraction method which has been implemented on a conventional diffractometer at a steady-state reactor. This method, which has so far been used only on time-of-flight instruments, can also be easily and successfully used at steady-state sources. The EDNTD method presented is based on the precise measurement of the Bragg diffraction edge by using focusing crystals and is complementary to the method of strain measurements by Bragg diffraction angle analysis. It allows changes (Delta) d/d of lattice spacings with sensitivity down to some 10-5 to be investigated for reasonable, irradiated sample volumes and counting times, even at a medium-power research reactor.

Paper Details

Date Published: 27 February 1997
PDF: 4 pages
Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); doi: 10.1117/12.267893
Show Author Affiliations
Volker Wagner, Physikalisch-Technische Bundesanstalt (Germany)
Z. Kouril, Nuclear Physics Institute (Czech Republic)
Petr Lukas, Nuclear Physics Institute (Czech Republic)
Pavel Mikula, Nuclear Physics Institute (Czech Republic)
Jan Saroun, Nuclear Physics Institute (Czech Republic)
Pavel Strunz, Nuclear Physics Institute (Czech Republic)
Miroslav Vrana, Nuclear Physics Institute (Czech Republic)

Published in SPIE Proceedings Vol. 2867:
International Conference Neutrons in Research and Industry
George Vourvopoulos, Editor(s)

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