Characterization of Novel Lightweight Radiation Shielding Materials for Space Applications

Novel materials or multilayers can help to reduce the mass requirement for radiation shielding of electronic components significantly. In this paper, potential alternatives to the standard aluminum shielding approach are assessed by the Monte-Carlo simulations and promising candidates are manufactur...

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Veröffentlicht in:	IEEE transactions on nuclear science 2017-08, Vol.64 (8), p.2325-2332
Hauptverfasser:	Steffens, Michael, Hepp, Felicitas, Hoffgen, Stefan K., Krzikalla, Philipp, Metzger, Stefan, Pellowski, Frank, Santin, Giovanni, Tiedemann, Lars, Tighe, Adrian, Weinand, Udo
Format:	Artikel
Sprache:	eng
Schlagworte:	Alanine Aluminum Computer simulation Dosimeters Electronic components Field effect transistors Ionizing radiation materials characterization Monte Carlo simulation Multilayers Nonhomogeneous media proton radiation effects Protons Radiation radiation effects radiation environment Radiation shielding Radiation tests radiation transport Semiconductor devices Slabs Space applications Space vehicles
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Beschreibung
Zusammenfassung:	Novel materials or multilayers can help to reduce the mass requirement for radiation shielding of electronic components significantly. In this paper, potential alternatives to the standard aluminum shielding approach are assessed by the Monte-Carlo simulations and promising candidates are manufactured and characterized by radiation tests including proton and electron tests. The transmission of energetic protons of up to 39 MeV through the shielding solution was assessed as well as the dose deposited by energetic electrons up to 12 MeV in Radiation sensing field-effect transistor (RADFETs) and Alanine dosimeters behind the shield.
ISSN:	0018-9499 1558-1578
DOI:	10.1109/TNS.2017.2703312