205454 ⎘
Secondary-emission tubes; Electron-multiplier tubes; Electron multipliers; Electrode arrangements Control of electron beam by magnetic field
IMPROVED ION CONVERSION PLATE
#2Magnetic photomultiplier tube system
#3Apparatus and methods for focussing electrons
#4Electron source and X-ray fluorescence analyser using an electron source
#5Array structures for field-assisted positron moderation and corresponding methods
#6Particle detection by electron multiplication