Space Reactor Radiation Shield Design Summary, for Information Page: 2 of 70
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The Manager. SNR
SPP-6721 0-C01 1
The reactor radiation shield mass is rntrnized Dy Sriec> y :very arrow . core
angle as shown in Figure 1, thus creating a locally protected snadow region, rather than
shielding around the entire reactor. A 12"/6' elliptical shadow cone was based on spaceship
radiator and high gain antenna configurations
Figure 1 Reactor Radiation Shield Shadow Cone and Basic Shield Shape
1 2" half angle
- Energy Conversion
6" id 12" sides
Close up of Reactor
6 ralf ang!e
by High Gan
Enclosure (1) summarizes the reactor radiation shield design progress based on NRPCT (KA L
and Bettis) and Oak Ridge National Laboratory (ORNL) analyses. It discusses the pre-
conceptual shield configuration considered and the radiation sources, material consideratic--s
and mass estimates. Integration with the reactor, the reactor coolant and energy corr es :
subsystems, and the spaceship, are also discussed A -Tef discussion of future wor-
considerations and mission extensibrlity is include.
PRE-DECISIONAL - For planning and discussion purposes only
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Pheil, EC. Space Reactor Radiation Shield Design Summary, for Information, report, February 17, 2006; Niskayuna, NY. (digital.library.unt.edu/ark:/67531/metadc873954/m1/2/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.