Article (Scientific journals)
Milli-electronvolt monochromatization of hard X-rays with a sapphire backscattering monochromator
Sergueev, I.; Wille, H.-C.; Hermann, Raphaël et al.
2011In Journal of Synchrotron Radiation, 18 (Part 5), p. 802-810
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Abstract :
[en] 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.
Disciplines :
Physics
Author, co-author :
Sergueev, I.
Wille, H.-C.
Hermann, Raphaël ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Bessas, D.
Shvyd'ko, Yu V.
Zajac, M.
Rueffer, R.
Language :
English
Title :
Milli-electronvolt monochromatization of hard X-rays with a sapphire backscattering monochromator
Publication date :
2011
Journal title :
Journal of Synchrotron Radiation
ISSN :
0909-0495
eISSN :
1600-5775
Publisher :
Blackwell, Oxford, United Kingdom
Volume :
18
Issue :
Part 5
Pages :
802-810
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 14 December 2012

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