Radioactivity originates from CaSO4:Dy and CaSO4:Tm, phosphor powders.
D002118:Calcium; D004419:Dysprosium; D011851:Radioactivity; D013431:Sulfates; D013819:Thermoluminescent Dosimetry; D013932:Thulium
D013431:Sulfates; D004419:Dysprosium; D013932:Thulium; D002118:Calcium