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Natural diamond MicroDiamond

Good water equivalence of Carbon for high energy photon and electron beams

High sensitivity: 0.5uC/Gy (dimensions can be reduced)

Low temperature dependence < 1%/K

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