Accession Number:

ADA235938

Title:

Time-Resolved Mass and Energy Analysis

Descriptive Note:

Technical rept

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA AEROPHYSICS LAB

Report Date:

1991-04-08

Pagination or Media Count:

40.0

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.

Subject Categories:

  • Nuclear Instrumentation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE