Search for characteristic features of low-energy quiet-time H, He and heavy nuclei fluxes, 1973-1977Results of a survey of the 0.5-10 MeV/nucleon fluxes of H, He and heavier ions during interplanetary 'quiet-times' over the period 1973-1977 using the ULET telescope on IMP-8 are reported. It is found that in this energy range no characteristic flux level, or, e.g., proton/alpha ratio emerges during quiet periods in any year, thus precluding systematic long-term studies of the time behavior of the quiet-time component at these energies. Spectra for a uniquely quiet period in May 1977 and a less restrictively chosen set of quiet periods in 1976-1977 are presented and compared with previous results.
Document ID
19810027988
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mason, G. M. (Maryland Univ. College Park, MD, United States)
Gloeckler, G. (Maryland, University College Park, Md., United States)
Hovestadt, D. (Max-Planck-Institut fuer Physik und Astrophysik Garching, Germany)