- P-ISSN 1225-0163
- E-ISSN 2288-8985
An X-ray diffractometer for spatially resolved X-ray diffraction measurements was developed to identify phase in the narrow (micron-scaled) region of high burn-up fuels and some nuclear materials. The micro-XRD was composed of an X-ray microbeam alignment system and a sample micro translation system instead of a normal slit and a fixed sample stage in a commercial XRD. The X-ray microbeam alignment system was fabricated with a microbeam concentrator having two Ni deposited mirrors, a vertical positioner, and a tilt table for the generation of a concentrated microbeam. The sample micro translation system was made with a sample holder and a horizontal translator, allowing movement of a specimen at <TEX>$5{\mu}m$</TEX> steps. The angular intensity profile of the microbeam generated through a concentrator was symmetric and not distorted. The size of the microbeam was <TEX>$4,000{\times}20{\mu}m$</TEX> and the spatial resolution of the beam was <TEX>$47{\mu}m$</TEX> at the sample position. When the diffraction peaks were measured for a <TEX>$UO_2$</TEX> pellet specimen by this system, the reproducibility (<TEX>$2{\Theta}
Spino, J, (2000) Journal of Nuclear Materials,
Papaioannou, D, (2002) Review of Scientific Instruments,
Bilderback, D. H, (1995) Review of Scientific Instruments,
Suzuki, Y, (1992) Review of Scientific Instruments,
Howells, M. R, (2000) Opt. Eng.,
Takeuchi, A, (2001) Nuclear Instruments and Methods in Physics Research A,
Hayakawa, S, (1989) Review of Scientific Instruments,,
Chapman, H. N, (1993) Applied Optics,
Chapman, H. N, (1993) Applied Optics,
Dhez, P, (1999) Review of Scientific Instruments,
Snigirev, A, (1995) Review of Scientific Instruments,
David, C, (1999) Review of Scientific Instruments,
Snigirev, A, (1996) Nature,
Park, Y. S, (2004) KAERI/AR-706/2004, Korea Atomic Energy Research Institute