Title :
Influence of spacecraft shielding structures on Galactic Cosmic ray-induced soft error rate
Author :
Silvestri, Marco ; Tracino, Emanuele ; Destefanis, Roberto ; Lobascio, Cesare ; Santin, Giovanni ; Calvel, Philippe
Author_Institution :
Center for Device Thermography & Reliability (CDTR), Univ. of Bristol, Bristol, UK
Abstract :
Through the use of the Geant4 Radiation Analysis for Space (GRAS) Monte Carlo tool, we present new results on the impact of shielding composition on spacecraft electronics Soft Error Rate (SER) induced by Galactic Cosmic Rays (GCR). The comparison with the aluminum-equivalent approach is performed using both G4/GRAS and CREME96 tool on a heterogeneous set of representative devices. In particular the iron-ion spectrum has been taken as representative of the whole GCR spectrum due to its Linear Energy Transfer (LET), material penetration, and abundance characteristics.
Keywords :
Monte Carlo methods; galactic cosmic rays; radiation effects; shielding; space vehicle electronics; CREME96 tool; G4-GRAS tool; GCR spectrum; Geant4 Radiation Analysis for Space; Monte Carlo tool; aluminum-equivalent approach; galactic cosmic ray-induced soft error rate; iron-ion spectrum; linear energy transfer; material penetration; spacecraft electronics soft error rate; spacecraft shielding structure composition; Aluminum; CMOS integrated circuits; Error analysis; Materials; Monte Carlo methods; Random access memory; Space vehicles; GCR; MOS; Radiation effects; Shielding; Single Event Effects; Soft Error Rate; galactic cosmic rays;
Conference_Titel :
Radiation and Its Effects on Components and Systems (RADECS), 2011 12th European Conference on
Conference_Location :
Sevilla
Print_ISBN :
978-1-4577-0585-4
DOI :
10.1109/RADECS.2011.6131439
