Journal Article

PUBDB-2025-01868

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Luminescence of CsI:Na crystal scintillator under synchrotron radiation excitation

Shunkeyev, K. (Corresponding author) ; Kenzhebayeva, А. ; Sagimbayeva, S. ; Syrotych, Y.Extern* ; Zorenko, Y. (Corresponding author)Extern*

2025
Elsevier New York, NY [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jlumin.2025.121308  doi:10.3204/PUBDB-2025-01868

Abstract: This work investigates the luminescence properties and energetic structure of emission centers created by NaCsisoelectronic impurities in a well-known CsI:Na scintillation crystal. Using synchrotron radiation excitation at 8K, high-resolution spectroscopic techniques were employed to probe the electronic transitions and luminescentdynamics within the crystal. The study reveals distinct emission bands that can be attributed to both self-trappedexciton (STE) states and excitons bound to NaCs and defect-related centers, with a clear separation between fastand slow decay components. These findings provide deeper insight into how the NaCs impurity alters theemission behaviour of the CsI host, including modifications to energy transfer and relaxation processes.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20240974 EC (I-20240974-EC) (I-20240974-EC)

Experiment(s):

1. PETRA Beamline P66 (PETRA III)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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