What type of radiation does a semiconductor detector typically measure?

A semiconductor detector is designed to measure various types of radiation, including alpha particles, gamma rays, and X-rays. This versatility arises from the properties of the semiconductor materials used in these detectors, which can respond to different forms of ionizing radiation.

When alpha particles interact with the semiconductor material, they create electron-hole pairs, allowing for the detection of this heavy, positively charged radiation. Gamma rays and X-rays, which are both forms of electromagnetic radiation, can also be detected as they pass through the semiconductor material, causing ionization and generating signals that can be measured.

This ability to detect multiple types of radiation makes semiconductor detectors valuable in a variety of applications, ranging from radiation survey instruments to more specialized uses in medical imaging and radiation therapy. Therefore, considering the capabilities of semiconductor detectors, they are indeed able to measure all the types listed, justifying the conclusion that the correct choice encompasses all forms of radiation mentioned.