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‰wdq‰‰vO‰Computerprogramforbeginnerstoassistinterpretationofelectrondiffractionpatternséq"*ToshihiroKogureQOOR"NP'oQOOR"N3‰oAbstract:Acomputerprogramtoassistinterpretationofelectrondiffractionpatternsisdescribed,especiallyforTEMbeginners.
Theprogramcontainsdrawingofdiffractionpatternsincludinghigh-orderLauezonesandtheextinctionrule,andcalculationofcrystalorientationfromobserveddiffractionpatterns.
Furthermore,combinationwithaslow-scanCCDcamerathattakesdiffractionpatternsinacomputerrealizesreal-timedeterminationofmineralsandtheirorientationsduringTEMobservation.
Keywords:electrondiffractionpattern,TEM,phaseidentification,crystalorientation,slow-scanCCDcamera*"'w'w‰@—wn¤‰'n…f‰wêU§113-0033""s–{V|R|PDepartmentofEarthandPlanetaryScience,GraduateSchoolofScience,theUniversityofTokyo,7-3-1Hongo,Bunkyo-ku,Tokyo,113-0033,JapanE-mail:Kogure@eps.
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u-tokyo.
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