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Radiation analysis for manned missions to the Jupiter systemAn analysis for manned missions targeted to the Jovian system has been performed in the framework of the NASA RASC (Revolutionary Aerospace Systems Concepts) program on Human Exploration beyond Mars. The missions were targeted to the Jupiter satellite Callisto. The mission analysis has been divided into three main phases, namely the interplanetary cruise, the Jupiter orbital insertion, and the surface landing and exploration phases. The interplanetary phase is based on departure from the Earth-Moon L1 point. Interplanetary trajectories based on the use of different propulsion systems have been considered, with resulting overall cruise phase duration varying between two and five years. The Jupiter-approach and the orbital insertion trajectories are considered in detail, with the spacecraft crossing the Jupiter radiation belts and staying around the landing target. In the surface exploration phase the stay on the Callisto surface is considered. The satellite surface composition has been modeled based on the most recent results from the GALILEO spacecraft. In the transport computations the surface backscattering has been duly taken into account. Particle transport has been performed with the HZETRN heavy ion code for hadrons and with an in-house developed transport code for electrons and bremsstrahlung photons. The obtained doses have been compared to dose exposure limits. c2004 COSPAR. Published by Elsevier Ltd. All rights reserved.
Document ID
20050193729
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
De Angelis, G.
(Old Dominion University Norfolk, VA 23508, United States)
Clowdsley, M. S.
Nealy, J. E.
Tripathi, R. K.
Wilson, J. W.
Date Acquired
August 23, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Advances in space research : the official journal of the Committee on Space Research (COSPAR)
Volume: 34
Issue: 6
Subject Category
Aerospace Medicine
Funding Number(s)
CONTRACT_GRANT: NCC1-404
Distribution Limits
Public
Copyright
Other
Keywords
NASA Center LaRC
NASA Discipline Radiation Health

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