pp. 637-644
S&M2836 Research Paper of Special Issue https://doi.org/10.18494/SAM3694 Published: February 21, 2022 Effects of Excitation Density on Scintillation Dynamics of CdWO4 [PDF] Masanori Koshimizu, Satoshi Kurashima, Atsushi Kimura, Mitsumasa Taguchi, Takayuki Yanagida, Yutaka Fujimoto, and Keisuke Asai (Received October 15, 2021; Accepted October 21, 2021) Keywords: scintillator, linear energy transfer, self-activated, CdWO4
The scintillation temporal profiles of CdWO4 at different linear energy transfers (LETs) were analyzed in this study. The profiles were obtained using pulsed ion beams with different LETs in CdWO4. In the temporal profiles, faster rise and decay were observed at higher LETs. The faster rise at higher LETs is attributed to the competition between the quenching due to excited-state interactions and the energy transfer from the host to the emission sites, i.e., the WO66− complex. The faster decay is explained in terms of the competition between quenching due to excited-state interactions and radiative decay at the emission sites. These results, along with similar findings obtained for another self-activated scintillator, Bi4Ge3O12, clearly indicate that self-activated scintillators exhibit scintillation temporal profiles that are significantly dependent on LET.
Corresponding author: Masanori KoshimizuThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Masanori Koshimizu, Satoshi Kurashima, Atsushi Kimura, Mitsumasa Taguchi, Takayuki Yanagida, Yutaka Fujimoto, and Keisuke Asai, Effects of Excitation Density on Scintillation Dynamics of CdWO4, Sens. Mater., Vol. 34, No. 2, 2022, p. 637-644. |