HR: 0800h
AN: SM41A-1117    [Abstracts]
TI: Imaging Time-of-Flight Ion Mass Spectrograph
AU: * Janzen, P H
EM: pjanzen@lanl.gov
AF: Los Alamos National Laboratory, P.O.Box 1663, MS D466, Los Alamos, NM 87545
AU: Dors, E
EM: edors@lanl.gov
AF: Los Alamos National Laboratory, P.O.Box 1663, MS D466, Los Alamos, NM 87545
AU: Funsten, H
EM: hfunsten@lanl.gov
AF: Los Alamos National Laboratory, P.O.Box 1663, MS D466, Los Alamos, NM 87545
AU: Harper, R
EM: rharper@lanl.gov
AF: Los Alamos National Laboratory, P.O.Box 1663, MS D466, Los Alamos, NM 87545
AB: Identification of the ion constituents in space plasmas provides important clues to understanding their structure and dynamics and unraveling thecomplex interactions that occur across plasma boundaries, such as the interaction between the solar wind and the Earth's magnetosphere. We present results from a proof-of-concept time-of-flight ion mass spectrograph. This ungated spectrograph electrostatically rasters a continuous ion beam at the entrance of a drift tube and detects the position of the ions at the end of the drift tube. The ion speeds, energy-per-charge ratios, and mass-per-charge ratios can be determined simultaneously for a wide range of ion masses. Spectra were taken with multiple simultaneous species and energies-per-charge.
DE: 7894 Instruments and techniques
SC: SPA-Magnetospheric Physics [SM]
MN: 2004 AGU Fall Meeting