LUMINESCENCE COMPOSITION HAVING RED HEAT Russian patent published in 1997 - IPC

FIELD: visualization of X-ray and electronic irradiation. SUBSTANCE: mixture which contains 0.1749 g of ScO₃,, 0.1408 g of V₂O₅ and 0.6485 g of Ta₂O₅ is wearied with ethyl alcohol. Thus obtained mixture is sintered on open air within 2 h at temperature being gradually increased by 100 C. Initial temperature is 400 C, sustaining time at each temperature being 2 h. Thus treated sample is then allowed to stand within 8 h and is cooled together with oven. Desired composition contains 25 mol % of Sr₂O₃, 25 mol % of V₂O₅ and 50 mol % of Ta₂O₅. EFFECT: increased intensity of luminescence. 3 cl, 1 tbl