Milli-electronvolt monochromatization of hard X-rays with a sapphire backscattering monochromator

A sapphire backscattering monochromator with 1.1 (1) meV bandwidth for hard X-rays (20-40 keV) is reported. The optical quality of several sapphire crystals has been studied and the best crystal was chosen to work as the monochromator. The small energy bandwidth has been obtained by decreasing the c...

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Veröffentlicht in:Journal of synchrotron radiation. - 1994. - 18(2011), Pt 5 vom: 21. Sept., Seite 802-10
1. Verfasser: Sergueev, I (VerfasserIn)
Weitere Verfasser: Wille, H-C, Hermann, R P, Bessas, D, Shvyd'ko, Yu V, Zając, M, Rüffer, R
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Journal of synchrotron radiation
Schlagworte:Journal Article Research Support, Non-U.S. Gov't
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520 |a A sapphire backscattering monochromator with 1.1 (1) meV bandwidth for hard X-rays (20-40 keV) is reported. The optical quality of several sapphire crystals has been studied and the best crystal was chosen to work as the monochromator. The small energy bandwidth has been obtained by decreasing the crystal volume impinged upon by the beam and by choosing the crystal part with the best quality. The monochromator was tested at the energies of the nuclear resonances of (121)Sb at 37.13 keV, (125)Te at 35.49 keV, (119)Sn at 23.88 keV, (149)Sm at 22.50 keV and (151)Eu at 21.54 keV. For each energy, specific reflections with sapphire temperatures in the 150-300 K region were chosen. Applications to nuclear inelastic scattering with these isotopes are demonstrated 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
700 1 |a Wille, H-C  |e verfasserin  |4 aut 
700 1 |a Hermann, R P  |e verfasserin  |4 aut 
700 1 |a Bessas, D  |e verfasserin  |4 aut 
700 1 |a Shvyd'ko, Yu V  |e verfasserin  |4 aut 
700 1 |a Zając, M  |e verfasserin  |4 aut 
700 1 |a Rüffer, R  |e verfasserin  |4 aut 
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