Accession Number:
ADA235938
Title:
Time-Resolved Mass and Energy Analysis
Descriptive Note:
Technical rept
Corporate Author:
AEROSPACE CORP EL SEGUNDO CA AEROPHYSICS LAB
Personal Author(s):
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.
Descriptors:
- *MEASUREMENT
- SCALERS
- METALS
- RATIOS
- SCATTERING
- SPACECRAFT
- DETECTION
- NEUTRAL
- MASS
- PLASMAS(PHYSICS)
- DISPLACEMENT
- ENERGY
- RATES
- ARRAYS
- SENSITIVITY
- TIME
- SPECTRA
- DRIFT
- FLIGHT
- RECTANGULAR BODIES
- KINETIC ENERGY
- SAMPLING
- DIAGNOSIS(GENERAL)
- READ OUT TECHNIQUES
- ANALOG SYSTEMS
- CONVERTERS
- SQUARE ROOTS
- DISCRIMINATORS
- ANODES
- MASS SPECTROMETRY
- SPACE PROPULSION
- MICROCHANNEL PLATES
- DIGITAL SYSTEMS
- IONS
Subject Categories:
- Nuclear Instrumentation