Patent ID: 7368723

Claim:
A method of detecting radiation comprising: providing a layer of high purity single crystal CVD diamond having at least one of, (i) in an off state, a resistivity R 1 greater than 1×10 12 Ω cm measured at an applied field of 50 V/μm and 300 K, (ii) a μτ product greater than 1.5×10 −6 cm 2 /V, measured at an applied field of 10 V/μm and 300 K, (iii) an electron mobility (μ e ) measured at 300 K greater than 2400 cm 2 V −1 s −1 , (iv) a hole mobility (μ h ) measured at 300 K greater than 2100 cm 2 V −1 s −1 , and (v) a high charge collection distance greater than 150 μm, measured at an applied field of 1 V/μm and 300 K; applying an electric field of no greater than 0.5 V/μm to the layer; exposing the layer to the radiation thereby generating a signal; and detecting the signal.