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Comparison of TID Effects in Space-Like Variable Dose Rates and Constant Dose RatesThe degradation of the LM193 dual voltage comparator has been studied at different TID dose rate profiles, including several different constant dose rates and a variable dose rate that simulates the behavior of a solar flare. A comparison of results following constant dose rate vs. variable dose rates is made to explore how well the constant dose rates used for typical part testing predict the performance during a simulated space-like mission. Testing at a constant dose rate equal to the lowest dose rate seen during the simulated flare provides an extremely conservative estimate of the overall amount of degradation. A constant dose rate equal to the average dose rate is also more conservative than the variable rate. It appears that, for this part, weighting the dose rates by the amount of total dose received at each rate (rather than the amount of time at each dose rate) results in an average rate that produces an amount of degradation that is a reasonable approximation to that received by the variable rate.
Document ID
20150008645
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Harris, Richard D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
McClure, Steven S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rax, Bernard G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Evans, Robin W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jun, Insoo
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 20, 2015
Publication Date
July 14, 2008
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
TNS-00449-2008.RI
Meeting Information
Meeting: 2008 IEEE Nuclear and Space Radiation Effects Conference
Location: Tucson, AZ
Country: United States
Start Date: July 14, 2008
End Date: July 18, 2008
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
Solar Flare
ELDRS

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