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Monocrystalline diamond, grown with CVD techniques, is a very good base material for clinical dosimetry sensors. Diamond also shows good physical and electronic properties in term of tissue equivalence and very low dark currents. The sensor current readout is made by electrometers, these are expensive and bulky and, due to the need of shielded cables, can hardly be used for matrix sensor readout....
The dosimeters for radiotherapy must comply to strict requirements in terms of sensitivity, toxicity, tissue equivalence and radiation hardness. At present time both silicon and diamond dosimeters are used as solid state devices and in recent years, monocrystalline diamond sensors have been grown with CVD techniques. Due to the low current signals, the sensor readout is made by electrometers connected...
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