The Calibration of Electrostatic Analyzers and Channel Electron Multipliers Using Laboratory Simulated Omnidirectional Electron Beams

@inproceedings{Arnoldy1973TheCO,
  title={The Calibration of Electrostatic Analyzers and Channel Electron Multipliers Using Laboratory Simulated Omnidirectional Electron Beams},
  author={Roger L. Arnoldy and Portia Isaacson and D. F. Gats and Lawrence Wah Choy},
  year={1973}
}
The difficulty of obtaining accurate calibrations of electrostatic analyzers employing large aperture channel electron multipliers is discussed. This is due primarily to the varying efficiency of large aperture multipliers depending on point and angle of impact on the aperture. This varying response makes the assignment of an over‐all detector efficiency uncertain by at least a factor of 2. A laboratory calibration scheme is discussed by which the combined efficiency and geometry factor is… CONTINUE READING