Search NASASearch

Engineering topics

Beck, A. J., Jr.

Publications and source records attributed to Beck, A. J., Jr..

Conclusion

A set of models was established for the Jupiter electron and proton trapped radiation belt which could be used in the determination of outer planets mission spacecraft design requirements. Two models each for the electron and proton components evolved: a nominal or best estimate model, and an upper limit model. The models are described by presenting the assumptions that were agreed to be then best basis for the models at this time, and then describing the models which were structured in the time available. The discussion which took place at the final session is also presented.

Beck, A. J., Jr.

Jupiter trapped radiation belts

Previously developed models for trapped electron radiation belts and trapped proton radiation belts in the Jovian magnetosphere are described. The spatial distribution of flux and the L shell dependence of the characteristic energy are displayed for both models. Based on these models, the fluence accumulated by a Jupiter flyby spacecraft is given in terms of the equivalent 3-MeV fluence for electrons and the equivalent 20-MeV proton fluence. Finally, some impacts of these fluences on outer planet missions are described.

Beck, A. J., Jr.