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Estimating the Reliability of Electronic Parts in High Radiation FieldsRadiation effects on materials and electronic parts constrain the lifetime of flight systems visiting Europa. Understanding mission lifetime limits is critical to the design and planning of such a mission. Therefore, the operational aspects of radiation dose are a mission success issue. To predict and manage mission lifetime in a high radiation environment, system engineers need capable tools to trade radiation design choices against system design and reliability, and science achievements. Conventional tools and approaches provided past missions with conservative designs without the ability to predict their lifetime beyond the baseline mission.This paper describes a more systematic approach to understanding spacecraft design margin, allowing better prediction of spacecraft lifetime. This is possible because of newly available electronic parts radiation effects statistics and an enhanced spacecraft system reliability methodology. This new approach can be used in conjunction with traditional approaches for mission design. This paper describes the fundamentals of the new methodology.
Document ID
20110013160
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Everline, Chester
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Clark, Karla
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Man, Guy
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rasmussen, Robert
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Johnston, Allan
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kohlhase, Charles
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Paulos, Todd
(Alejo Engineering, Inc. Simi Valley, CA, United States)
Date Acquired
August 25, 2013
Publication Date
May 18, 2008
Subject Category
Quality Assurance And Reliability
Meeting Information
Meeting: Ninth International Probabilistic Safety Assessment and Management Conference
Location: Hong Kong
Country: China
Start Date: May 18, 2008
Distribution Limits
Public
Copyright
Other
Keywords
radiation
Europa
reliability
Probabilistic Risk Assessment (PRA)

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