TY - JOUR
T1 - A mass analysis technique using coincidence measurements from the Interstellar Boundary Explorer-Hi (∼0.3-∼6 keV) detector
AU - Allegrini, F.
AU - Ebert, R. W.
AU - Alquiza, J.
AU - Broiles, T.
AU - Dunn, C.
AU - McComas, D. J.
AU - Silva, I.
AU - Valek, P.
AU - Westlake, J.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - NASA's Interstellar Boundary Explorer (IBEX) mission, scheduled to launch in October 2008, will make the first observations of charge exchange energetic neutral atoms (ENAs) produced near the edge of the heliosphere. IBEX will measure these ENAs with two ultra-high sensitivity, single-pixel ENA sensors in the energy range of ∼0.01-∼2 keV (IBEX-Lo) and ∼0.3-∼6 keV (IBEX-Hi), respectively. The primary purpose of IBEX is to measure hydrogen ENAs from the outer heliosphere, but it will also be sensitive to heavier species of ENAs produced anywhere throughout the solar system. For this study, we measured the coincidence response of the IBEX-Hi detector section to H, He, N, and O ions. Based on these results, we have developed an innovative technique in estimating the hydrogen to heavy ion ratio in the signal. This new technique can be applied more widely than the IBEX-Hi detector section, and the basic principle may be useful for other, future space and ground-based measurements.
AB - NASA's Interstellar Boundary Explorer (IBEX) mission, scheduled to launch in October 2008, will make the first observations of charge exchange energetic neutral atoms (ENAs) produced near the edge of the heliosphere. IBEX will measure these ENAs with two ultra-high sensitivity, single-pixel ENA sensors in the energy range of ∼0.01-∼2 keV (IBEX-Lo) and ∼0.3-∼6 keV (IBEX-Hi), respectively. The primary purpose of IBEX is to measure hydrogen ENAs from the outer heliosphere, but it will also be sensitive to heavier species of ENAs produced anywhere throughout the solar system. For this study, we measured the coincidence response of the IBEX-Hi detector section to H, He, N, and O ions. Based on these results, we have developed an innovative technique in estimating the hydrogen to heavy ion ratio in the signal. This new technique can be applied more widely than the IBEX-Hi detector section, and the basic principle may be useful for other, future space and ground-based measurements.
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U2 - 10.1063/1.2987691
DO - 10.1063/1.2987691
M3 - Article
C2 - 19044461
AN - SCOPUS:54749107996
SN - 0034-6748
VL - 79
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 9
M1 - 096107
ER -