HR: 1340h
AN: SM23A-0391 INVITED     [Abstracts]
TI: A Hot Plasma Composition Analyzer for the Magnetospheric Multiscale Mission
AU: * Young, D T
EM: dyoung@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Pollock, C J
EM: cpollock@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Burch, J L
EM: jburch@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: De Los Santos, A
EM: adlsantos@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Miller, G P
EM: gmiller@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Cravens, J P
EM: jcravens@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Crary, F J
EM: fcrary@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Pope, S E
EM: spope@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Bowman, R P
EM: rbowman@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Fuselier, S A
EM: fuselier@mail.spasci.com
AF: Lockheed Martin Advanced Technology Center, 3251 Hanover St., Palo Alto, CA 94304 United States
AU: Hertzberg, E
EM: hertzberg@mail.spasci.com
AF: Lockheed Martin Advanced Technology Center, 3251 Hanover St., Palo Alto, CA 94304 United States
AU: Trattner, K
EM: trattner@mail.spasci.com
AF: Lockheed Martin Advanced Technology Center, 3251 Hanover St., Palo Alto, CA 94304 United States
AU: Ghielmetti, A
EM: ghielmetti@mail.spasci.com
AF: Lockheed Martin Advanced Technology Center, 3251 Hanover St., Palo Alto, CA 94304 United States
AU: Livi, L A
EM: Stefano.Livi@jhuapl.edu
AF: Johns Hopkins University/Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723 United States
AU: Paschalidis, N
EM: Nick.Paschalidis@jhuapl.edu
AF: Johns Hopkins University/Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723 United States
AU: Hanley, J J
EM: jhanley@swri.edu
AF: Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238 United States
AU: Funsten, H O
EM: hfunsten@lanl.gov
AF: Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87544 United States
AB: We have designed and built a prototype of a hot plasma composition analyzer (HPCA) that has applications to in situ space plasma physics in general and the Magnetospheric Multiscale Mission in particular. The HPCA is based on a toroidal top-hat energy-angle analyzer coupled to a time-of-flight mass analyzer based on the carbon foil technique. Using analytical methods we optimized the HPCA for transmission, dynamic range and mass resolution sufficient to measure and resolve all relevant major ion species (H+, He++, He+ and O+) found in the solar wind and Earth's magnetosphere. The design takes into consideration optimum matching of energy-angle and time-of-flight analyzers. Dynamic range issues are addressed in a novel way using an RF waveform applied to the energy analyzer. We have obtained improved ion mass resolution compared to earlier instruments of this type by spatially resolving scattered ions and neutrals exiting the carbon foil of the time-of-flight (TOF) analyzer and using that information to correct the TOF spectrum.
DE: 2723 Magnetic reconnection (7526, 7835)
DE: 2748 Magnetotail boundary layers
DE: 2784 Solar wind/magnetosphere interactions
DE: 2794 Instruments and techniques
SC: SPA-Magnetospheric Physics [SM]
MN: Fall Meeting 2005