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in subjects: %22Crystallography%22

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Polycapillary optics based neutron focusing for small sample neutron crystallography.

This work presents preliminary measurements designed to explore a new approach to neutron diffraction that is somewhat analogous to the pseudo-Laue technique, except that instead of using a broad energy (wavelength) bandwidth it uses a broad angular bandwidth. We have used a polycapillary focusing optic to focus neutrons from a monochromatic beam (using the BT-8 spectrometer on the NIST research reactor) and from a polychromatic beam at a pulsed spallation source (the Intense Pulsed Neutron Sou… more

Date: February 21, 2002

Creator: Gibson, W. M.; Chen-Mayer, H. H.; Mildner, D. F. R.; Prask, H. J.; Schultz, A. J.; Youngman, R. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Tensile testing and scanning electron microscope examination of Charpy impact specimens from the HFBR

The Materials Technology Group of the Department of Nuclear Energy (DNE) at Brookhaven National Laboratory (BNL) has performed a fractographic examination of neutron irradiated and unirradiated Charpy V'' notch specimens which have been deformed to failure in a tensile testing apparatus. The evaluation was carried out using a scanning electron microscope (SEM) to evaluate the fracture mode. Photomicrographs were then evaluated to determine if ductile areas were present on the fracture surfaces … more

Date: January 1, 1990

Creator: Czajkowski, C. J.; Schuster, M. H. & Roberts, T. C.

Item Type: Report