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Natural diamond MicroDiamond
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Good water equivalence of Carbon for high energy photon and electron beams
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High sensitivity: 0.5uC/Gy (dimensions can be reduced)
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Low temperature dependence < 1%/K
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Stable response with accumulated dose (< 0.05% per kGy)
Natural Diamond (60003-PTW)
MicroDiamond (60019-PTW)
Polarization needed (100 V)
No Polarization (Schottky diode conf.)
High response variability between detectors Reproducible production
Need of 5 Gy pre-irradiation before each set
of measurements (response drop 19%)
No need of pre-irradiation
High dark current
Dark current negligible
Dose rate dependence
Low dose rate dependence