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Comparison of alumi...
Comparison of aluminum and lucite for shielding against 1 GeV protons
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- Mancusi, Davide, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bertucci, Antonella (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Gialanella, Giancarlo (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Grossi, Gianfranco (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Manti, Lorenzo (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Pugliese, Mariagabriella (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Rusek, Adam (author)
- Brookhaven National Laboratory
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- Scampoli, Paola (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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- Sihver, Lembit, 1962 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Durante, Marco (author)
- Universita Degli Studi Di Napoli Federico Ii,University of Naples Federico II
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- English.
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In: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 40:4, s. 581-585
- Related links:
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http://dx.doi.org/10...
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Abstract
Subject headings
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- Shielding is the only countermeasure currently available for exposure to cosmic radiation during space travel. We compared aluminum (Al) and polymethylmethacrylate (PMMA, or lucite) shields of 20 g/cm^2 thickness using 1 GeV protons accelerated at the NASA Space Radiation Laboratory. The dose rate increased after the shield, and the increase was more pronounced after the Al than the PMMA shield. No significant differences in the induction of chromosomal aberrations were observed in human lymphocytes exposed to the same dose with no shield or behind the Al and PMMA blocks. However, the biological effectiveness per incident proton was increased by the shields. Simulations using the General-Purpose Particle and Heavy-Ion Transport Code System (PHITS) show that the increase in dose is caused by target fragments, and aluminum produces more secondary protons than PMMA. Nevertheless, the spectrum of particles behind the shield is confined within the low-LET region, and the biological effectiveness is consequently similar.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Annan biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Other Biological Topics (hsv//eng)
Keyword
- Fragmentation
- Protons
- Shielding
- Chromosome aberrations
Publication and Content Type
- art (subject category)
- ref (subject category)
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Mancusi, Davide, ...
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Bertucci, Antone ...
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Gialanella, Gian ...
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Grossi, Gianfran ...
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Manti, Lorenzo
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Pugliese, Mariag ...
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show more...
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Rusek, Adam
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Scampoli, Paola
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Sihver, Lembit, ...
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Durante, Marco
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Other Biological ...
- Articles in the publication
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Advances in Spac ...
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Chalmers University of Technology