First results for the pLGAD sensor for low-penetrating particles

Silicon sensors are the go-to technology for high-precision in particle physics. But only recently low-noise silicon with internal amplification became available. The so-called Low Gain Avalanche Detector (LGAD) have been developed applications High Energy Physics, but lack two characteristics needed measurement of low-energy protons (<60keV): a thin entrance window (in order tens nm) and efficient signals created near sensor’s surface depth below 1 µm). In this paper we present proton (pLGAD) sensor concept some results from characterisation first prototypes sensor. pLGAD is specifically designed to detect protons, other low-penetrating particles. It will higher detection efficiency than non-silicon technologies, promises be lot cheaper easier operate competing technologies.