Author : National Aeronautics and Space Adm Nasa
Release : 2018-12-29
Genre :
Kind : eBook
Book Rating : 073/5 ( reviews)
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Book Synopsis Effects of Radiobiological Uncertainty on Shield Design for a 60-Day Lunar Mission by : National Aeronautics and Space Adm Nasa
Download or read book Effects of Radiobiological Uncertainty on Shield Design for a 60-Day Lunar Mission written by National Aeronautics and Space Adm Nasa. This book was released on 2018-12-29. Available in PDF, EPUB and Kindle. Book excerpt: Some consequences of uncertainties in radiobiological risk due to galactic cosmic ray exposure are analyzed to determine their effect on engineering designs for a first lunar outpost - a 60-day mission. Quantitative estimates of shield mass requirements as a function of a radiobiological uncertainty factor are given for a simplified vehicle structure. The additional shield mass required for compensation is calculated as a function of the uncertainty in galactic cosmic ray exposure, and this mass is found to be as large as a factor of 3 for a lunar transfer vehicle. The additional cost resulting from this mass is also calculated. These cost estimates are then used to exemplify the cost-effectiveness of research. Wilson, John W. and Nealy, John E. and Schimmerling, Walter Langley Research Center NASA-TM-4422, L-17136, NAS 1.15:4422 RTOP 199-04-16-11...
