UV ile Işınlanmış Seryum Katkılı Sr3Y2(BO3)4 Fosforunun Termolüminesans Cevabı

Bu çalışmada UV radyasyonu ile ışınlanmış seryum nadir toprak iyonu katkılı stronsiyum itriyum borat (Sr3Y2(BO3)4:Ce) fosforunun termolüminesans özellikleri incelenmiştir. Sr3Y2(BO3)4:Ce fosforu katı-hal reaksiyon metodu ile sentezlenmiş ve X-ışını kırınımı (XRD) ve termolüminesans (TL) teknikleri kullanılarak karakterize edilmiştir. Termolüminesans ölçümleri 254, 302 ve 365 nm dalga boyuna sahip UV radyasyonu ile ışınlanmış fosfor için gerçekleştirilmiştir. Doz cevabı ve sönümleme özellikleri, 254 nm dalga boyuna sahip UV radyasyonu ile ışınlanmış Sr3Y2(BO3)4: Ce fosforu için araştırılmıştır. Şu anki bilgimize göre bu fosforun termolüminesans özellikleri üzerine herhangi bir çalışma bulunmamaktadır.

Anahtar Kelimeler:

Stronsiyum itriyum borat, termolüminesans, UV

Thermoluminescence Response of UV Irradiated Cerium Doped Sr3Y2(BO3)4 Phosphor

The thermoluminescence (TL) properties of cerium rare earth ion doped strontium yttrium borate (Sr3Y2(BO3)4: Ce) phosphor irradiated with UV radiation were investigated in the present study. Sr3Y2(BO3)4: Ce phosphor was synthetized by the solid-state reaction method and characterized by using X-ray diffraction (XRD) and thermoluminescence techniques. Thermoluminescence measurements were carried out for the phosphor irradiated with UV radiation having 254, 302 and 365 nm wavelength. The dose response and fading properties were examined for the Sr3Y2(BO3)4: Ce phosphor irradiated with UV radiation having 254 nm wavelength. As far as we know there is no earlier work on thermoluminescence properties of these phosphors in literature.

Keywords:

Strontium yttrium borate, thermoluminescence, UV,

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