Semiconductor detectors for 2D X-ray imaging

Dimensional Reduction: A Design Tool for New Radiation Detection Materials

“…After five decades of research and development, only a few materials have had significant impact on hard radiation detection (Si, high purity Ge (HPGe), CdTe, Cd 1‐ x Zn x Te, and HgI 2 ) 3, 6–13. Generally, detection of hard radiation requires a strict combination of properties in a semiconductor crystal that need to be satisfied simultaneously: very high crystal purity, high average atomic number ( Z ) that increases the probability of an incoming radiation beam interacting with valence electrons, a large bandgap ( E g > 1.6 eV) to minimize dark current and electronic noise, and a high carrier mobility–carrier lifetime product, μτ , for rapid signal readout.…”

Comparative Study of HgI2, PbI2 and TlBr Films Aimed for Ionizing Radiation Detection in Medical Imaging

“…They are interesting for X-and -rays detection [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Performance of photon-counting and energy-integrating semiconductor detectors for digital breast tomosynthesis

“…The most common material for direct conversion detector is amorphous selenium (a-Se) but several other materials that can potentially be used as direct conversion detectors are under investigation [4,5]. In addition, the prospect of using semiconductor materials as photon-counting detectors [6] allows for further investigations on the feasibility of energyweighting limited-angle computed tomography.…”