Geomagnetically-Trapped and Galactic Cosmic Radiation Environments and Absorbed Dose Calculations for a Hypothetical Sounding Rocket Trajectory

Date

2019-07-07

Journal Title

Journal ISSN

Volume Title

Publisher

49th International Conference on Environmental Systems

Abstract

In this paper, we investigate space radiation effects on a hypothetical sounding rocket. The rocket test flight achieves an altitude of ~1600 km with the flight duration of approximately 30 minutes, thus the rocket encounters both geomagnetically-trapped radiation and background galactic cosmic radiation (GCR) environments. We utilize three recent space radiation models in our assessment: the AP/E-9 trapped proton and electron environment models, and the CARI-7A GCR models for the GCR environment, for an epoch of 2018. Several high energy radiation transport/dose codes are used to calculate the space radiation environments and subsequent absorbed dose exposures (in Si) for aluminum shielding thicknesses of 0, 5, and 10 g/cm2. Methods and absorbed dose calculations are summarized and discussed in detail.

Description

Bill Atwell, Retired Boeing Technical Fellow, USA
Kyle Copeland, Federal Aviation Administration (FAA), USA
Francis Badavi, Old Dominion University Research Foundation, USA
ICES503: Radiation Issues for Space Flight
The 49th International Conference on Environmental Systems was held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.

Keywords

Space Radiation Effects, Space Radiation Models, High Energy Particles/Dose Codes

Citation