Time-Resolved Mass and Energy Analysis
Abstract
A new method for time - resolved mass and kinetic energy analysis of ionic or neutral species in the range of 1 to 150 amu and 0.5 to 500 eV is described. Time - of - flight mass spectrometry is combined with position - sensitive detection to measure energy spectra for multiple masses at burst - mode sampling rates as high as 50 kHz. The detector is a rectangular microchannel plate with a 96 - element metal anode array that is read out either by fast analog - to - digital converters or by discriminators and scalers. The apparatus is configured so that the measured ion drift time varies as the square root of the mass - to - charge ratio and the displacement along the detector varies as the square root of the energy - to - charge ratio. Applications are envisioned in plasma analysis, in beam - scattering experiments, and in diagnostic measurements for spacecraft propulsion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 08, 1991
- Accession Number
- ADA235938
Entities
People
- D. A. Lichtin
- J. E. Pollard
- R. B. Cohen
- S. W. Janson
Organizations
- The Aerospace Corporation