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Semiconductor pixel detectors are an important class of radiation and particle detection devices based on semiconductors, such as germanium or silicon (Si). A semiconductor diode is depleted by applying a reverse bias voltage on its electrodes to synthesize a simple semiconductor ionizing radiation detector.
Camera sensors are light-sensitive detectors that convert the incident photons into an electrical signal that can be read out by a digital device. Most cameras make use of 2D array detectors and choosing the right sensor type for a given application is often a trade-off between cost, desired final image resolution and the necessary read-out speed.
Matthew Durbin, a nuclear engineering doctoral candidate at Penn State, was recently awarded a first-place prize in the 2021 Innovations in Nuclear Technology R&D Awards for his research paper, “K-Nearest Neighbors Regression for the Discrimination of Gamma Rays and Neutrons in Organic Scintillators.”