674-675 / 2239
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
No need of pre-irradiation
drop 19%)
High dark current
Dark current negligible
Dose rate dependence
Low dose rate dependence