A high-resolution magnetic bottle electron spectrometer and its application to a photoelectron-Auger electron coincidence measurement of the L _2,3VV Auger decay in CS₂

The energy resolution and the detection efficiency of a magnetic bottle electron spectrometer equipped with an electrostatic retarder are examined, with a particular focus on its application to electron coincidence measurements. The electrostatic retardation properly improves the energy resolving power of the spectrometer. No significant decrease in detection efficiency is observed when retardation voltages are applied. Photoelectron-Auger electron coincidence measurement of the L_2,3VV Auger decay in CS₂ is performed by using the magnetic bottle spectrometer, which reveals Auger transition intensities varying for the different core holes.