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Possible detection of flare-generated positrons by helios 1 on 3 jun 1982
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Richter, K. Kirsch, E. Keppler, E. |
| Copyright Year | 1985 |
| Description | The production of neutrons and gamma-ray lines by solar particles in the photosphere has been studied. The principal positron emiters which lead to the 0.51 MeV gamma-line are C-11 0-14, 0-15, N-13, Ne-19. The energies of the positrons form radioactive nuclei are of the order of few hundred keV. Positrons resulting from the pi(+) decay have energies of approx 10-100 MeV and cannot be measured by the MPAe-detector. Most of the positrons annihilate in the photosphere. A fraction however should be able to escape into the interplanetary space. Proton, electron and , for the first time, positron measurements (E = 152-546 keV) obtained by the MPAe-particle detector on board of Helios 1 are presented. |
| File Size | 240140 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850026457 |
| Archival Resource Key | ark:/13960/t0ns5n157 |
| Language | English |
| Publisher Date | 1985-08-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Gamma Rays Photosphere Solar Flares Positrons Positron Annihilation Line Spectra Charged Particles Compton Effect Interplanetary Space Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
