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Title: Large area mass analyzer instrument for the chemical analysis of interstellar dust particles

Abstract

A new instrument to analyze the chemical composition of dust particles in situ in space has been developed. The large target area ({approx}0.2 m{sup 2}) makes this instrument well suited for detecting a statistically significant number of interstellar dust grains or other dust particles with a low flux. The device is a reflectron-type time-of-flight mass spectrometer that uses only flat electrodes for the generation of the parabolic potential. The instrument analyzes the ions from the impact generated plasma due to hypervelocity dust impacts onto a solid target surface. The SIMION ion optics software package is used to investigate different potential field configurations and optimize the mass resolution and focusing of the ions. The cylindrically symmetric instrument operates with six ring electrodes and six annular electrodes biased to different potentials to create the potential distribution of the reflectron. The laboratory model of the instrument has been fabricated and tested. Hypervelocity dust impacts are simulated by laser ablation using a frequency doubled Nd:YAG laser with {approx}8 ns pulse length. The experimental data show typical mass resolution m/{delta}m{approx_equal}200.

Authors:
; ; ; ; ; ; ; ; ;  [1];  [2];  [3];  [3];  [2];  [2];  [3]
  1. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 (United States)
  2. (Germany)
  3. (United States)
Publication Date:
OSTI Identifier:
20953243
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 78; Journal Issue: 1; Other Information: DOI: 10.1063/1.2431089; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABLATION; CHEMICAL COMPOSITION; COSMIC DUST; DESIGN; ELECTRODES; IONS; LASERS; MASS RESOLUTION; PARTICLES; TIME-OF-FLIGHT MASS SPECTROMETERS; YTTRIUM COMPOUNDS

Citation Formats

Sternovsky, Z., Amyx, K., Bano, G., Landgraf, M., Horanyi, M., Knappmiller, S., Robertson, S., Gruen, E., Srama, R., Auer, S., Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 and ESA/European Space Operations Centre, Robert-Bosch-Strasse 5, 64293, Darmstadt, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392, Physics Department, University of Colorado, Boulder, Colorado 80309-0390, Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, Hawaii 96822 and Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, and A and M Associates, P.O. Box 421, Basye, Virginia 22810. Large area mass analyzer instrument for the chemical analysis of interstellar dust particles. United States: N. p., 2007. Web. doi:10.1063/1.2431089.
Sternovsky, Z., Amyx, K., Bano, G., Landgraf, M., Horanyi, M., Knappmiller, S., Robertson, S., Gruen, E., Srama, R., Auer, S., Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 and ESA/European Space Operations Centre, Robert-Bosch-Strasse 5, 64293, Darmstadt, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392, Physics Department, University of Colorado, Boulder, Colorado 80309-0390, Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, Hawaii 96822 and Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, & A and M Associates, P.O. Box 421, Basye, Virginia 22810. Large area mass analyzer instrument for the chemical analysis of interstellar dust particles. United States. doi:10.1063/1.2431089.
Sternovsky, Z., Amyx, K., Bano, G., Landgraf, M., Horanyi, M., Knappmiller, S., Robertson, S., Gruen, E., Srama, R., Auer, S., Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 and ESA/European Space Operations Centre, Robert-Bosch-Strasse 5, 64293, Darmstadt, Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392, Physics Department, University of Colorado, Boulder, Colorado 80309-0390, Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, Hawaii 96822 and Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg, and A and M Associates, P.O. Box 421, Basye, Virginia 22810. Mon . "Large area mass analyzer instrument for the chemical analysis of interstellar dust particles". United States. doi:10.1063/1.2431089.
@article{osti_20953243,
title = {Large area mass analyzer instrument for the chemical analysis of interstellar dust particles},
author = {Sternovsky, Z. and Amyx, K. and Bano, G. and Landgraf, M. and Horanyi, M. and Knappmiller, S. and Robertson, S. and Gruen, E. and Srama, R. and Auer, S. and Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 and ESA/European Space Operations Centre, Robert-Bosch-Strasse 5, 64293, Darmstadt and Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309-0392 and Physics Department, University of Colorado, Boulder, Colorado 80309-0390 and Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, Hawaii 96822 and Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg and Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117, Heidelberg and A and M Associates, P.O. Box 421, Basye, Virginia 22810},
abstractNote = {A new instrument to analyze the chemical composition of dust particles in situ in space has been developed. The large target area ({approx}0.2 m{sup 2}) makes this instrument well suited for detecting a statistically significant number of interstellar dust grains or other dust particles with a low flux. The device is a reflectron-type time-of-flight mass spectrometer that uses only flat electrodes for the generation of the parabolic potential. The instrument analyzes the ions from the impact generated plasma due to hypervelocity dust impacts onto a solid target surface. The SIMION ion optics software package is used to investigate different potential field configurations and optimize the mass resolution and focusing of the ions. The cylindrically symmetric instrument operates with six ring electrodes and six annular electrodes biased to different potentials to create the potential distribution of the reflectron. The laboratory model of the instrument has been fabricated and tested. Hypervelocity dust impacts are simulated by laser ablation using a frequency doubled Nd:YAG laser with {approx}8 ns pulse length. The experimental data show typical mass resolution m/{delta}m{approx_equal}200.},
doi = {10.1063/1.2431089},
journal = {Review of Scientific Instruments},
number = 1,
volume = 78,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}