| Zugriffsnummer | 10193 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | New monochromator performances based on Bragg diffraction optics for high-resolution neutron strain/stress diffractometers |
| Autor(in); Institution |
Mikula, Pavel; Nuclear Physics Institute, Rez, CZECH REPUBLIC
Vrana, Miroslav; Nuclear Physics Institute, Rez, CZECH REPUBLIC
Wagner, Volker; 6.5, Neutronenstrahlung, PTB-Braunschweig
Choi, Yong Nam; HANARO Center, Yuseong, Daejon, KOREA
Kim, Shin Ae; HANARO Center, Yuseong, Daejon, KOREA
Oh, Hwa Suk; HANARO Center, Yuseong, Daejon, KOREA
Sung, Ki Hoon; HANARO Center, Yuseong, Daejon, KOREA
Lee, Chang Hee; HANARO Center, Yuseong, Daejon, KOREA
|
| Quelle/Jahr | Proceedings of the International Conference on "Advanced Technology in Experimental Mechanics", ATEM'03:(2003) |
| Availability | [CD-ROM] |
| Herausgeber(in) |
JSME-MMD
|
| Konferenzangaben | International Conference on "Advanced Technology in Experimental Mechanics", Nagoya, 10-12, September, 2003, JAPAN |
| Freie Schlagworte | neutron monochromator ; diffraction optics ; powder diffraction |
| Zusammenfassung | Two unconventional high-resolution monochromator performances using Bragg diffraction optics based on cylindrically bent perfect crystals which have been recently tested with the aim of their efficient employment in strain diffractometers are reviewed. It has been found that the optimized diffractometer arrangements employing such monochromators provide good luminosity and a high resolution (FWHM of the instrumental Δd/d - profile can be about 2.7 x 10-3 in the double-crystal case or less than 8 x 10-3 in the Umweganregung case) in the vicinity of usually used 2ϑs ≈ 90°. Presented results demonstrate their experimental abilities for powder diffraction, namely for residual strain/stress measurements. Due to the unique resolution and good luminosity achieved, besides the macrostrain scanning, the presented performances also qualified for possible microstrain/stress studies by an analysis of the diffraction profiles. |
Zitierung
Mikula, P., Vrana, M., Wagner, V., Choi, Y. N., Kim, S. A., Oh, H. S., Sung, K. H., & Lee, C. H. (2003). New monochromator performances based on Bragg diffraction optics for high-resolution neutron strain/stress diffractometers. International Conference on "Advanced Technology in Experimental Mechanics", Nagoya, 10-12, September, 2003, JAPAN.