Preparation of (K:Eu) NaSO4 phosphor for lyoluminescence dosimetry of ionising radiation.
Gamma ray dosimetry using lyoluminescence is a low cost and simple system. As sulphate based phosphors are used for TL radiation dosimetry they therefore seem to be a promising material for LL gamma ray dosimetry. A study on LL properties of Eu activated KNaSO4 and K3Na(SO4)2 gamma irradiated materials is reported. Eu doped KNaSO4 shows maximum LL yield in the above system. It shows a linear response from 0.06 to 10 C.kg(-1) and there is not much fading of LL intensity, indicating the phosphor to be suitable as a lyoluminescence dosimetry phosphor of ionising radiation. The doped Eu ion acts as an activator and thus enhances the LL intensity of the phosphor.
Dhoble
S J
SJ
sjdhoble@rediffmail.com
D005063:Europium / Q000737:chemistry; D005720:Gamma Rays; D008163:Luminescent Measurements; D011854:Radiochemistry; D013431:Sulfates / Q000737:chemistry / Q000528:radiation effects*; D013819:Thermoluminescent Dosimetry / Q000379:methods*
D013431:Sulfates; C012036:sodium sulfate; C031512:potassium sulfate; D005063:Europium