Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.6827m&link_type=abstract
Journal of Geophysical Research, vol. 86, Aug. 1, 1981, p. 6827-6835.
Physics
20
Auroral Spectroscopy, Bremsstrahlung, Electron Precipitation, Magnetospheric Instability, X Ray Imagery, Ionospheric Disturbances, Pinhole Cameras, Plasma Oscillations, Spatial Distribution, Temporal Distribution, X Ray Spectra
Scientific paper
The development of a new X-ray pinhole camera, for the study of the temporal and spatial characteristics of auroral 5lectron precipitation's energetic component, is reported. The camera obtains spectral information on bremsstrahlung X-rays with energies between 22 and 110 keV, detailing spatial structure with scale lengths between 10 and 80 km (9-62 deg cone angles). Preliminary images shown and discussed are from the balloon-borne observation of auroral break-up associated events, including a spectrally soft, 20-km spot which appeared to initiate a major break-up event in conjunction with a spectrally hard and spatially uniform component. The timing of this event, its multiple components and its discrepant spatial scales are akin to geostationary observations of dispersionless substorm injections.
Chin Jason
Mauk Barry H.
Parks George
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