Search for tag: "convergence"

Electron Tomography - Practical Aspects

2017 PARADIM SUMMER SCHOOL Practical Tomography Robert Hovden

dimensional spacedegree tilthot pixelsurface renderinglow tiltprojection requirementchemical elementsslab geometrytilt seriessymbols of utahtransparency curvemedium filtervertical directionimage shiftreconstruction qualityoperation sizesignal processingsmall goldhigh quality reconstructionuncorrected systemcenter mass1st thingconvergence angleelectronicssymbolssingle projectionsingle axisoriginal objecttelegraphic reconstructionreal spacehigh valueshand sidepost processingtomography holderstem tomographys.d.o.high tiltslight crescent moon180 degreetypical data setcross correlationhigh intensitycrescent moon shapebiology and pharmacology of chemical elementsnoise filtering segmentationcandy wrapperbounding boxnano particlesdynamic rangegraphic reconstructionmedical imagingintensity valuestilt axiscubic mineralscontour surfacelinear drifthigher resolutiontilt angleassess reconstructiongood alignmentcenter groundnatural feelmorphological operationmanual alignmenthigher intensitycopper barsdemographic reconstructionlengthalignment procedurefocal plane$180.00 degrees3d computer graphicsbilinear operatorsnano cubedata setcarbon supportaberration corrected tooldefined peakscenter particlepeek representingpoliticsdynamic focusingcaption completereconstruction post processingcolor mapfit lotscenter objectdirectional casehigher tiltpeter talkedtilt rangealignment qualitygal shamblerfully opaqueprojection imageminus $75.00gold particleslow valuescovariance and correlationtraditional tomography regimeobject size$32.00 bitmaterialselectrical conductorselementary mathematics
From  James Overhiser on February 15th, 2019 8 plays

Ronchigrams

2017 PARADIM SUMMER SCHOOL Ronchigrams Peter Ercius

aperture sizedark field detectorconcepts in physicssmaller probespherical aberrationlargest probegraduate schoolguy namedhigher orderstrong magneticlong timeelectron microscopyorder termsphase changezone axispretty easyspecimen opticsoptical devices0.11 nanometersfraction patternlocal magnificationlarger apertureelectron microscopecorrected scopeaberration corrected microscopeprevious imagesphotographymagnetic fieldraunchy gramelectronphase shiftstem probeconvergence angleelectron diffraction patterndiffraction patternscience of photographydiffraction spaceelementary geometrypost specimenrate pathsmall screenengstromopticsobjective lenscirclesaberration shapemicrons leftlow frequencynice probecorrected stemsmall amountsemi anglepost specimen lensesinfinite magnificationfocus seriesmonolithic detectorseabed patternranch grahamflat regionatomic physicsaberration corrected scopeelectron lenspretty closea.t.f.focal seriesdiffraction buttonaberration correctoverlap regionbright field detectorlargest aperturehigh resolutionwine glasscarbonk.v.lot simplerimage correctaberration correctedlengthround lens300 k.v.quote unquotelarge focusradio symmetryfocused probeimage processingbbc radio 4 programmescontrast transferecclesiastical titlescentimetre–gram–second system of unitsf.b.i. techphysical opticsimage shiftflat phasemicron diameter aperture200 k.b.geometrical opticsamorphous materialalpha angleaberration correctorc.s.aberration correctionshadow imagesphere collaborationphysical chemistrydigital photographyhigher order aberrationsbeam electron diffractionf.b.i.100 percent2nd ordercsubcaption completestar aberrationcrystallographyanglehigh anglesc.c.d.virtual detectoroptical axisautomated alignmentparticle physicsaberration functionpixilated detectorcomputer visionlens currentatomic resolutioncentral spikeweird aberrationshigher order termsperfect lenst.m.3rd orderpriest specimen lensesk.b.double overlapsi derived unitscorrected microscopediffractionsingle positiontiny bitorder sphericalchemistryconvergent beam electronstem
From  James Overhiser on February 15th, 2019 15 plays

Linear Imaging Theory

2017 PARADIM Linear Imaging Theory Robert Hovden

d.n.a.dark fieldaperture sizeobject functiontotal intensitycollaboration increasesconcepts in physicsconvergence angleareaspherical aberrationwide rangecovering todaygeometric shapesd.n.a. structurecentral minimumelectron microscopyfocal pointintensity increaseslinear imaging modelwave vectorscontrol theoryoptical devicescollection anglelarger apertureelectron microscopehigh anglearchitectural elementssignal processingphotographyhigh pass filtertransfer functionuncorrected systemphase shiftdarkfield regimefunctional formscattered electronshigher frequencybright field stemegyptian artefact typesdiffraction patternscience of photographypoint spread functionhigh intensity probeelementary geometryintegralsspatial frequencyopticsobjective lensbright field regimebright spotsreal spacelow frequencyreciprocal spaceblurring contributionsphere collaborationuncorrected instrumentcharacteristic dimensionincoherent imaging conditionsurfacesaperture functionwave frontatomic physicsimaging modecontract transfer functionwhite noisescanning transmission electroncohere imagingprevious lecturedistant planeelementary shapesstemhigher angleshigh resolutionincoherent linear imagemil ratingdetector geometriesfield conegeometrytypes of functionsaberration correctedconstant phaselengthlower frequencieschromatic aberrationconic sectionsamplitude squaredaberration freescientific techniquesmicroscopesmeasuring instrumentsintensity squaredoptic axisintensity decreasescontrast transferdiffraction limitstem imageindividual atomradio spectrumincoherent imagingquantum mechanicsaberration free probemultivariable calculuspeople metersfocal planebright fieldlow angleamateur radiosystems theoryimage planecoherent imaging conditioncollecting electronsblurring functiontransmission electron microscopyphysical quantitiesdigital photographyangular spreaddouble integralcoherent imaginglargest rangeface shifthigher order aberrationsraleigh criterionpiofairly interpretabletransmission electron microscopesquare pulsegeometrical opticsdigital signal processing1st ordercaption completeprobe tailsnyquist limitblue curvesubroutinesbroadcastingfilter frequency responsemaximum frequencyhigh frequencycaustic curvehand sidelow pass filterspatial coordinatesatoms closercoherent imagesparrow criterionstructural systempico meterdark backgroundfrequency spaceoptimal aperturet.m.complex conjugatecontrast transfer functionwave functionmeasure ultimatelyimaging conditionannular darkfieldincoherent imaging modeatomic numberfield stematomic columninelastic interactionsnobel prizeangle mediumchemistryfocal imagingprobe size
From  James Overhiser on February 15th, 2019 12 plays

ORIE Colloquium - 2013-02-14: Yehua Wei

ORIE Colloquium: Yehua Wei (MIT) - Understanding the Effectivness of Sparse Process Flexibility Thursday, February 14, 2013 at 3:00pm Frank H. T. Rhodes Hall, 253 The seminal paper of Jordan and…

From  E. Cornelius on April 30th, 2018 4 plays