Amorphous Silicon Based Particle Detectors

Topical Review for Semiconductor Science and Technology Review of Amorphous Silicon Based Particle Detectors: The Quest for Single Particle Detection

Hydrogenated amorphous silicon (a-Si:H) is attractive for radiation detectors because of its radiation resistance and processability over large areas and with mature Si microfabrication techniques. While the use of a-Si:H for medical imaging has been very successful, the development of detectors for particle tracking and minimum-ionizing-particle detection has lagged, with almost no practical i...

Radiation hardness of amorphous silicon particle sensors

Radiation tests of 32 lm thick hydrogenated amorphous silicon n–i–p diodes have been performed using a high-energy 24 GeV proton beam up to fluences of 2 · 10 protons/cm. The results are compared to irradiation of similar 1 lm and 32 lm thick n–i–p diodes using a proton beam of 405 keV at a fluence of 3 · 10 protons/cm. All samples exhibited a drop of the photoconductivity and an increase in th...

Thin-film silicon detectors for particle detection

Integrated particle sensors have been developed using thin-film on ASIC technology. For this purpose, hydrogenated amorphous silicon diodes, in various configurations, have been optimized for particle detection. These devices were first deposited on glass substrates to optimize the material properties and the dark current of very thick diodes (with thickness up to 50 μm). Corresponding diodes w...

Running head: COMPARISON OF AMORPHOUS SELENIUM AND AMORPHOUS 1 Comparison of Amorphous Selenium and Amorphous Silicon Flat-Panel Detectors

Digital radiographic flat-panel detectors may operate with direct or indirect manners of converting x-ray photon energy into spatial energy signals. Advances in both technologies have led to radiographic work areas that are faster and lend toward lower patient radiation doses. Superior image quality with an abundance of post-processing capabilities is a benefit as well. Whether based on amorpho...

Amorphous Silicon Based Neutron Detector