Diamond radiation probe.

摘要

The invention provides apparatus for measuring nuclear radiation. The apparatus includes a probe (10) which comprises a synthetic diamond (12) and a FET pre-amplifier (TR1, TR2). A DC bias voltage is applied across the diamond and the pre-amplifier amplifies pulse or conduction signals from the diamond due to incident radiation. The pre-amplifier provides a first output having only an AC component, and a second output having both an AC and a DC component. A DC feedback stage (36) applies a feedback signal to the input of the pre-amplifier to improve its dynamic range.