NDLI: Absorbed dose and dose equivalent calculations for modeling effective dose

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Absorbed dose and dose equivalent calculations for modeling effective dose

Content Provider	NASA Technical Reports Server (NTRS)
Author	Welton, Andrew Lee, Kerry
Copyright Year	2010
Description	While in orbit, Astronauts are exposed to a much higher dose of ionizing radiation than when on the ground. It is important to model how shielding designs on spacecraft reduce radiation effective dose pre-flight, and determine whether or not a danger to humans is presented. However, in order to calculate effective dose, dose equivalent calculations are needed. Dose equivalent takes into account an absorbed dose of radiation and the biological effectiveness of ionizing radiation. This is important in preventing long-term, stochastic radiation effects in humans spending time in space. Monte carlo simulations run with the particle transport code FLUKA, give absorbed and equivalent dose data for relevant shielding. The shielding geometry used in the dose calculations is a layered slab design, consisting of aluminum, polyethylene, and water. Water is used to simulate the soft tissues that compose the human body. The results obtained will provide information on how the shielding performs with many thicknesses of each material in the slab. This allows them to be directly applicable to modern spacecraft shielding geometries.
File Size	1321538
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100029678
Archival Resource Key	ark:/13960/t10p6215x
Language	English
Publisher Date	2010-01-01
Access Restriction	Open
Subject Keyword	Space Radiation Water Polyethylenes Human Body Aluminum Stochastic Processes Dosage Monte Carlo Method Spacecraft Shielding Radiation Absorption Ionizing Radiation Biological Effects Linear Energy Transfer Let Mathematical Models Astronauts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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