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| The plots on this page are diagnostic results
generated from raw data downlinked during the ATIC long duration balloon
flight. |
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Total energy deposit spectrum taken with the LET
trigger prior to the threshold change on January 5, 2001. The
threshold value is 0Fh.
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Total energy deposit spectrum taken with the LET
trigger after the threshold change on January 5, 2001. The
threshold value was 17h.
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Total energy deposit spectrum taken mostly with the
S3L trigger. The line represents a power law spectrum with an
index of -2.7
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The track of a ~2 TeV total energy event as it passes
through the ATIC experiment.
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The track of a ~5 TeV total energy event as it passes
through the ATIC experiment.
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The track of a ~8 TeV total energy event as it passes
through the ATIC experiment.
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Shower profile in the calorimeter for events with
total energy deposit between 10 GeV and 15 GeV.
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Shower profile in the calorimeter for events with
total energy deposit greater than 100 GeV.
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Total energy deposit spectrum for events identified
as protons. The lines represent power law spectra with indexes of
-2.6 (green), -2.7 (purple) and -2.8 (blue)
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Total energy deposit spectrum for events identified
as Helium. The lines represent power law spectra with indexes of
-2.6 (green), -2.7 (purple) and -2.8 (blue)
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The charge spectrum as determined by the hodoscopes.
Peaks for Hydrogen and Helium are seen along with indications of Carbon
and Oxygen.
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The charge spectrum as determined by the Silicon
Matrix detector. Peaks for Hydrogen and Helium are seen along with
indications of Carbon and Oxygen.
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Scatter plot of the charge determined in the
hodoscopes versus the charge determined in the Silicon Matrix.
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Shows the altitude, in meters, of the ATIC
experiment from launch on December 28, 2000 through termination on
January 13, 2001.
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Temperature, in degrees C, measured on the bottom
side 2 of the BGO calorimeter.
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Temperature, in degrees C, measured within the hard
disk enclosure.
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Pressure, in mbar, measured relative to a vacuum
reference within the ATIC pressure vessel.
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Pressure, in mbar, measured relative to a vacuum
reference within the hard disk enclosure.
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Ratio of pressure over temperature versus time for
the hard disk enclosure (top) and the pressure vessel (bottom). The
reference temperature used is that measured in the hard disk enclosure.
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Expanded scale of the hard disk pressure over
temperature ratio versus time.
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Expanded scale of the internal pressure over
temperature ratio versus time.
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Flight Systems run on QNX Realtime OS.