5.3. Thermoluminescent Detectors 315
16.A 300μmthick silicon detector having an area of 0.05cm^2 has an initial leakage
current of 24nA. It is placed in a radiation field of 3MeV γ-rays for a period
of two years where it sees a constantγflux of 1. 2 × 107 cm−^2 s−^1. Compute its
leakage currents at each 6 months interval.
17.Calculate the ratio of the number of electron hole pairs generated in silicon by
5 MeV electrons to the ones created in an argon filled ionization chamber by
electrons having the same energy.
18.Compare the number of charge pairs created in silicon to that in diamond if
bothareexposedtoabeamof6.5MeV γ-rays.19.Compute the ratio of the hole mobilities at 300Kand 450Kin CVD diamond.