In various embodiments, a gamma ray detector is provided. The gamma ray detector may include a converter element, configured to release an electron when a gamma ray moves at least partially through the converter element. The gamma ray detector may further include a semiconductor detector, arranged to receive the electron and configured to produce a signal when the electron moves at least partially through the semiconductor detector; and an amplifier circuit, coupled to the semiconductor detector and configured to amplify the signal produced by the semiconductor detector. In the gamma ray detector, the converter element may be arranged to at least partially shield the amplifier circuit from electromagnetic radiation.