Zobrazeno 1 - 10
of 193
pro vyhledávání: '"H. U. Güdel"'
Publikováno v:
Physical Review B. 101
The compounds ${A}_{2}\mathrm{C}{\mathrm{u}}_{3}\mathrm{O}{(\mathrm{S}{\mathrm{O}}_{4})}_{3}$ $(A=\mathrm{Na},\phantom{\rule{0.16em}{0ex}}\mathrm{K})$ are characterized by copper hexamers that are weakly coupled to realize antiferromagnetic order bel
Autor:
Karl Krämer, H. U. Güdel, J.T.M. de Haas, Pieter Dorenbos, C.W.E. van Eijk, Muhammad Danang Birowosuto
Publikováno v:
IEEE Transactions on Nuclear Science. 55:1152-1155
We investigated gamma- and neutron-scintillation properties of A2LiLnX6:Ce3+ (A=Cs, Rb, K, Na, Li; Ln=La, Y, Lu, Sc; X=Br, I) with the aim to develop new scintillators with high neutron detection efficiencies. Among the investigated thermal neutron s
Publikováno v:
physica status solidi (a). 204:850-860
The scintillation properties of Ce3+ doped ternary cesium rare-earth halides are reported. We investigated Cs3Lu2I9:Ce3+, Cs3Gd2I9:Ce3+, Cs3LaBr6:Ce3+ and Cs3LuI6:Ce3+. Cs3Lu2I9:Ce3+ and Cs3LaBr6:Ce3+ exhibit the highest light yields under γ-ray exc
Autor:
Benoît Cormary, H. U. Güdel, Lydie Valade, Karl Krämer, Theo Woike, Isabelle Malfant, Bernard Delley, Dominik Schaniel
Publikováno v:
Phys. Chem. Chem. Phys.. 9:3717-3724
Two light-induced metastable NO linkage isomers with oxygen-bound (SI) and side-on configuration (SII) of NO are generated in trans-[RuCl(py)4(NO)][PF6]2·½H2O. Irradiation by light in the blue–green spectral range (450–530 nm) leads to the popu
Publikováno v:
Journal of physics / Condensed matter 18, 6148 (2006). doi:10.1088/0953-8984/18/26/031
Journal of Physics: Condensed Matter, 18 (26)
Journal of Physics: Condensed Matter, 18 (26)
We report the optical and scintillation properties of the Ce(3+)-doped bromoelpasolites Cs(2)NaREBr(6) (RE = La,Y,Lu). The γ-ray scintillation light yield of these materials varies from 6000 to 17 000 photons per MeV absorbed γ-ray energy. At room
Autor:
J.T.M. de Haas, Pieter Dorenbos, Muhammad Danang Birowosuto, Karl Krämer, H. U. Güdel, C.W.E. van Eijk
Publikováno v:
Journal of Luminescence. 118:308-316
Optical spectroscopy of LuI 3 doped with Ce 3 + using ultraviolet and visible light excitation is reported. LuI 3 host excitation and emission and 4f–5d excitation and emission of Ce 3 + are observed. An empirical model based on crystal field split
Autor:
C.W.E. van Eijk, Karl Krämer, Pieter Dorenbos, H. U. Güdel, Aurélie Bessière, Anouk Galtayries
Publikováno v:
Journal of Luminescence
Journal of Luminescence, Elsevier, 2006, 117 (2), pp.187-198. ⟨10.1016/j.jlumin.2005.05.005⟩
Journal of Luminescence, Elsevier, 2006, 117 (2), pp.187-198. ⟨10.1016/j.jlumin.2005.05.005⟩
The luminescence and scintillation properties of Cs 2 LiLuCl 6 :0.5%Ce 3+ are presented. Special attention is devoted to a 9.4 ns fast emission at 275 nm that can only be excited via the highest cubic field 5d e state of Ce. Contrary to Cs 3 LuCl 6 a
Autor:
Pieter Dorenbos, Karl Krämer, E. van der Kolk, E.V.D. van Loef, H. U. Güdel, Kanai S. Shah, William M. Higgins, A.P. Vink, C.W.E. van Eijk
Publikováno v:
Journal of Luminescence. 117:147-155
The spectroscopic properties of LaBr 3 doped with Ce 3 + , Pr 3 + , Er 3 + , and Eu 2 + under ultraviolet excitation are reported. LaBr 3 host excitation and emission, 4f–5d excitation and emission of Ce 3 + and Eu 2 + , and charge transfer from th
Publikováno v:
Journal of Luminescence. 117:1-12
A spectroscopic investigation of NaYF4 powders doped with several different concentrations of Er 3 + , Tm 3 + and/or Yb 3 + is described. Rare earth-doped NaYF4 is known to be a very efficient near-infrared to visible upconverter. The overview emissi
Publikováno v:
IEEE Transactions on Nuclear Science. 52:1114-1118
The scintillation properties of LuI/sub 3/:Ce/sup 3+/(pure, 0.5%, 2%, and 5% Ce/sup 3+/), a new member of the generation of Ce/sup 3+/ doped lanthanide trihalide scintillators, are presented. This material has a calculated density of 5.6 g/cm/sup 3/