Journal Article

DESY-2013-00972

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Resonant processes causing photon multiplication in CaS$O_4$:$Tb^{3+}$

Lushchik, A. (Corresponding author)Extern* ; Lushchik, C. ; Kudryavtseva, I. ; Maaroos, A. ; Nagirnyi, V.Extern* ; Savikhin, F.

2013
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.radmeas.2013.01.037  doi:10.3204/DESY-2013-00972

Abstract: The emission spectra of single and polyterbium centers have been measured at the excitation of CaSO4:Tb3+ phosphors with different charge compensators (Na+, calcium vacancies, etc.) by 3.8–35 eV photons or 5 and 300 keV electrons at 6–300 K. The possible mechanisms providing quantum yield above unity for green (5D4 → 7FJ) and blue emission (5D3 → 7FJ) of Tb3+ at the direct intracenter excitation, excitation of oxyanions or creation of hot (nonrelaxed) electrons and holes have been discussed. On the basis of thermally stimulated luminescence at 6–600 K, the peculiarities of the hopping diffusion of relaxed electrons and holes and their tentative low-temperature self-trapping have been considered.

Note: © Elsevier Ltd.

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Contributing Institute(s):

1. DOOR-User (DOOR)

Research Program(s):

1. DORIS Beamline I (POF2-54G13) (POF2-54G13)
2. FS-Proposal: I-20110905 EC (I-20110905-EC) (I-20110905-EC)
3. CALIPSO - Coordinated Access to Lightsources to Promote Standards and Optimization (312284) (312284)

Experiment(s):

1. DORIS Beamline I (DORIS III)

Appears in the scientific report 2013

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Database coverage:
; ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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