Muon scattering tomography is believed to be a promising technique for cargo container inspection, owing to the ability of natural muons to penetrate into dense
The silicon photomultiplier (SiPM) with epi-taxial quenching resistor (EQR) is an emerging and developing technology that has recently attracted the interest fr
PrFeB magnets, which possess excellent mag-netic properties at low temperatures, have important application value as cryogenic permanent magnet undula-tors for