Charged particle detection devices

摘要: A charged particle detector consists of four independent light guide modules assembled together to form a segmented on-axis annular detector, with center opening for allowing the primary beam pass through. One side assembly facing specimen is coated or bonded scintillator material as detection surface. Each module coupled photomultiplier tube allow signals transmitted through each be amplified and processed separately. made from single block have cone shaped circular cutout one face, terminating on opposite face an The outer region into separate output channels channel signal