High-resolution dosimetry with stimulated phosphorescence.
Thermally stimulated radiophosphorescence has been studied as a means of high-resolution dosimetry. Small grains of CaSO4:Mn phosphor, embedded in a thin Teflon tape, constitute the dosimeter. The light emitted after irradiation is measured with a photomultiplier coupled to the eyepiece of a scanning microscope. With CaSO4:Mn, the phosphorescence at room temperature is sufficient for measurement after doses in excess of 3000 rads. The spatial resolution of the technique is about 0.2 mm. The method has been tested by measuring the dose distributions from a radium needle and a beta-emitting eye applicator.
D002118:Calcium; D008345:Manganese; D011138:Polytetrafluoroethylene; D013431:Sulfates
D013431:Sulfates; D008345:Manganese; D011138:Polytetrafluoroethylene; D002118:Calcium