RELlABlLlTY ASSESSMENT OF A MODERN RlSC MICROPROCESSOR IN THE SPACE RADIATION ENVIRONMENT

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" RELlABlLlTY ASSESSMENT OF A MODERN RlSC MICROPROCESSOR IN THE SPACE RADIATION ENVIRONMENT "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151807
Doc. No	:	ET23599
Main Entry	:	David W. Eastin, B.S.E.E.
Title Proper	:	RELlABlLlTY ASSESSMENT OF A MODERN RlSC MICROPROCESSOR IN THE SPACE RADIATION ENVIRONMENT
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	Commercial reduced instruction set computing (RISC) microprocessors areappearing in military and space designs because they have many favorableattributes. RlSC processors are immensely complex devices containing millionsof logic gates and internal storage elements such as registers and cachememory. These storage elements are susceptible to ionizing radiation in earthorbit. Energetic protons and heavy ions may upset data in these storageelements or may cause destructive component failures such as latch-up. Thethesis presents radiation test data for the Motorola XPC7455 RlSCmicroprocessor. The thesis identifies sources of experimental error andcompares methods of predicting the processor's reliability in Earth orbit. Thethesis presents a sensitivity analysis that considers variations in radiationshielding, sensitive volume geometry, orbit parameters and space weatherenvironment. The thesis analyzes the failure modes for the processor andprovides a framework for evaluating the processor reliability.........-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL46843.pdf
Title and statement of responsibility and	:	RELlABlLlTY ASSESSMENT OF A MODERN RlSC MICROPROCESSOR IN THE SPACE RADIATION ENVIRONMENT [Thesis]