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Radiation Shielding and Mechanical Strength Evaluations of Non-parasitic, Multi-functional Microporous Carbon for Aerospace Applications
Technical Paper
2006-01-2104
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
AFR, Inc. is developing a multifunctional Carbon material that, in addition to excellent radiation shielding characteristics, is appropriate for certain energy storage applications. As an excellent Hydrogen gas sorbent, it increases the usable storage capacity of a gas cylinder by ∼25% at 3500 PSI and by ∼150% at 500 PSI. Our ongoing NASA Langley funded study shows that when a sorbent-filled tank is charged with hydrogen, it provides shielding superior to polyethylene against most types of ionizing particles. Even as hydrogen is consumed, the carbon and tank ensure that significant radiation shielding capability is maintained.
Vastly improved radiation shielding is a clear requirement for a potential manned mission to Mars or a long-duration base on the surface of the Moon. However, current shielding technologies are predicated upon systems dedicated solely to the task of shielding. Such single-use material adds substantially to the mass, and therefore expense, of space operations, without otherwise helping to accomplish mission objectives.
One approach to remedy these conflicting constraints is to modify other ship (or EVA suit) systems to maximize their radiation shielding properties, while still serving their primary purposes. Our carbon sorbent material takes this approach. Its performance in this key energy system application is excellent and the carbon itself is a better radiation shield against GCR's and SEP's than the excess Aluminum it can replace.
Authors
- Eric P. Rubenstein - Advanced Fuel Research, Inc.
- Marek A. Wójtowicz - Advanced Fuel Research, Inc.
- Elizabeth Florczak - Advanced Fuel Research, Inc.
- Erik Kroo - Advanced Fuel Research, Inc.
- Lawrence W. Townsend
- Richard Wilkins - Prairie View A & M University
- Brad Gersey - Prairie View A & M University
- William Atwell
Citation
Rubenstein, E., Wójtowicz, M., Florczak, E., Kroo, E. et al., "Radiation Shielding and Mechanical Strength Evaluations of Non-parasitic, Multi-functional Microporous Carbon for Aerospace Applications," SAE Technical Paper 2006-01-2104, 2006, https://doi.org/10.4271/2006-01-2104.Also In
References
- Tripathi, R.K. Simonsen L. Nealy J. Troutman P. Wilson J. W. “Shield Optimization in Simple Geometry for the Gateway Concept,” 2002-01-2332 32nd ICES Meeting San Antonio, TX July 15-18 2002
- Wilson, J.W. Simonsen, L.C. Shinn, J.L. Kim, M.-H.Y. Cucinotta, F.A. Badavi, F.F. Atwell, W. “Astronaut exposures to ionizing radiation in a lightly shielded spacesuit,” 1999-01-2173 29 th ICES Meeting Denver, CO July 12-15 1999
- Kim M.-H.Y. Thibeault S.A. Wilson J.W. Heilbronn L. Kiefer R.L. Weakley J.A. Dueber J.L. Fogarty T. Wilkins R. “Radiation Protection Using Martian Surface Materials in Human Exploration of Mars” 1 st International Workshop on Space Radiation Research and 11 th Annual NASA Space Radiation Health Investigators' Workshop Arona (Italy) May 2000
- Wilson J.W. Badavi F.F. Cucinotta F.A. Shinn J.L. Badhwar G.D. Silberberg R. Tsao C.H. Townsend L.W. Tripathi R.K. HZETRN: Description of a Free-Space Ion and Nucleon Transport and Shielding Computer Program May 1995
- Johns B.D. Fan K.Y. Singleterry R.C. “Development of a Collaborative Engineering Environment,” 2002-01-2552 32 nd ICES Meeting San Antonio, TX July 15-18 2002
- Wójtowicz, M.A. Serio, M.A. Smith, W. Simons, G.A. Gas Storage Using Microporous Carbons Final Report Advanced Fuel Research East Hartford, CT June 1996
- Wójtowicz, M.A. Bassilakis, R. Leffler, M. Serio, M.A. Simons, G.A. Fuller, W. Gas Storage Using Microporous Carbons Final Report May 2000
- Rubenstein E.P. Wójtowicz M.A. Florczak E. Kroo E. Serio M.A. August 2003 NASA Final Report “Microporous Carbon for Radiation Shielding and Hydrogen Storage,”
- Rubenstein E.P. Wójtowicz M.A. Florczak E. Kroo E. Singleterry R.C. 34 th ICES Meeting Colorado Springs, CO July 2004
- NASA/TP-2003-212051: Radiation Protection Studies of International Space Station Extravehicular Activity Space Suits, F. Cucinotta, M. Shavers, P. Saganti Miller J. 2003
- Moyers, M. Saganti, P. Nelson, G. Proton and Electron Threshold Energy Measurements for EVA Space Suits American Association of Physicists in Medicine Meeting @ RSNA Chicago 2000
- Moyers M. Miller D. Siebers J. et al. Water equivalence of various materials for 155 to 250 MeV protons Medical Physics 19 3 829 832 1992
- Janni J.F. Proton range-energy tables, 1 keV - 10 GeV Atomic Data and Nuclear Data Tables 27 2/3 147 339 1982
- Billings, M. P. Yucker W.R. The Computerized Anatomical Man (CAM) Model NASA Contractor Report No. CR-134043 1973
- Wilson, J.W. Townsend, L.W. Chun, S.Y. Lamkin, S.L. Ganapol, B.D. Hong, B.A. Buck, W.W. Khan, F. Cucinotta, F. Nealy, J.E. BRYNTRN: A Baryon Transport Model March 1989
- Townsend, L. W. Miller, T. M. Gabriel, T. A. HETC Radiation Transport Code Development for Cosmic Ray Shielding Applications in Space Radiation Protection Dosimetry 2005
- Zeitlin, C. Heilbronn, L. Miller, J. Schimmerling, W. Townsend, L.W. Tripathi, R.K. Wilson, J.W. The Fragmentation of 510A MeV 56Fe in Polyethylene II. Comparisons Between Data and a Model Radiation Research 145 1996 666 672