Co-doping effects in CdWO۴ scintillator thin film as alpha counters: Ag and Gd case

Publish Year: 1402
نوع سند: مقاله کنفرانسی
زبان: English
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NANOCDSTS02_044

تاریخ نمایه سازی: 2 دی 1402

Abstract:

The flexible CdWO۴ (CWO)-۲۲Wt. % polyester (PES) and CWO: ۲۵۵:at. Ag, ۲۵۵:at. Gd (co-doped CWO)-۲۲Wt. % PES thin films were prepared by direct mixing technique. The composition of thin films was studied by EDAX analysis. FE-SEM and EDAX-map images exhibited a uniform distribution of CWO and codoped CWO nanoparticles (NPs) in PES. The precision of the Monte Carlo technique for the computation of alpha particle trajectories in CWO-۲۲Wt. % PES and co-doped CWO-۲۲Wt. % PES thin films were ۵۵ and۵۳ , respectively, which approximately agreed with FE-SEM images. The band gap energy of co-doped CWO increased based on DRS results. The scintillation responses of thin films were investigated using a ۲۴۱Am source. Co-doping increased the absolute counting efficiency (up to %۴:) and decreased the energy resolution (up to ۳۹:). These results indicate that the manufactured nanocomposites could be promising candidates for ionizing radiation detectors, radiometric monitoring, and light-emitting diodes (LEDs).

Authors

Nooshin Heydarian Dehkordi

Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, Semnan, Iran

Morteza Raeisi

Department of Physics, Faculty of Science, Shahrekord University, Shahrekord, Iran

Sanaz Alamdari

Nanotechnology Research Institute, Shahrekord University, Shahrekord, Iran