Search for tag: "convergence angle"

56:17 Electron Tomography - Practical Aspects Electron Tomography - Practical Aspects	Electron Tomography - Practical Aspects 2017 PARADIM SUMMER SCHOOL Practical Tomography Robert Hovden dimensional space degree tilt hot pixel surface rendering low tilt projection requirement chemical elements slab geometry tilt series symbols of utah transparency curve medium filter vertical direction image shift reconstruction quality operation size signal processing small gold high quality reconstruction uncorrected system center mass 1st thing convergence angle electronics symbols single projection single axis original object telegraphic reconstruction real space high values hand side post processing tomography holder stem tomography s.d.o. high tilt slight crescent moon 180 degree typical data set cross correlation high intensity crescent moon shape biology and pharmacology of chemical elements noise filtering segmentation candy wrapper bounding box nano particles dynamic range graphic reconstruction medical imaging intensity values tilt axis cubic minerals contour surface linear drift higher resolution tilt angle assess reconstruction good alignment center ground natural feel morphological operation manual alignment higher intensity copper bars demographic reconstruction length alignment procedure focal plane $180.00 degrees 3d computer graphics bilinear operators nano cube data set carbon support aberration corrected tool defined peaks center particle peek representing politics dynamic focusing caption complete reconstruction post processing color map fit lots center object directional case higher tilt peter talked tilt range alignment quality gal shambler fully opaque projection image minus $75.00 gold particles low values covariance and correlation traditional tomography regime object size $32.00 bit materials electrical conductors elementary mathematics From James Overhiser on February 15th, 2019 9 plays
01:16:04 Ronchigrams Ronchigrams	Ronchigrams 2017 PARADIM SUMMER SCHOOL Ronchigrams Peter Ercius aperture size dark field detector concepts in physics smaller probe spherical aberration largest probe graduate school guy named higher order strong magnetic long time electron microscopy order terms phase change zone axis pretty easy specimen optics optical devices 0.11 nanometers fraction pattern local magnification larger aperture electron microscope corrected scope aberration corrected microscope previous images photography magnetic field raunchy gram electron phase shift stem probe convergence angle electron diffraction pattern diffraction pattern science of photography diffraction space elementary geometry post specimen rate path small screen engstrom optics objective lens circles aberration shape microns left low frequency nice probe corrected stem small amount semi angle post specimen lenses infinite magnification focus series monolithic detector seabed pattern ranch graham flat region atomic physics aberration corrected scope electron lens pretty close a.t.f. focal series diffraction button aberration correct overlap region bright field detector largest aperture high resolution wine glass carbon k.v. lot simpler image correct aberration corrected length round lens 300 k.v. quote unquote large focus radio symmetry focused probe image processing bbc radio 4 programmes contrast transfer ecclesiastical titles centimetre–gram–second system of units f.b.i. tech physical optics image shift flat phase micron diameter aperture 200 k.b. geometrical optics amorphous material alpha angle aberration corrector c.s. aberration correction shadow image sphere collaboration physical chemistry digital photography higher order aberrations beam electron diffraction f.b.i. 100 percent 2nd order csub caption complete star aberration crystallography angle high angles c.c.d. virtual detector optical axis automated alignment particle physics aberration function pixilated detector computer vision lens current atomic resolution central spike weird aberrations higher order terms perfect lens t.m. 3rd order priest specimen lenses k.b. double overlap si derived units corrected microscope diffraction single position tiny bit order spherical chemistry convergent beam electron stem From James Overhiser on February 15th, 2019 36 plays
01:01:34 Linear Imaging Theory Linear Imaging Theory	Linear Imaging Theory 2017 PARADIM Linear Imaging Theory Robert Hovden d.n.a. dark field aperture size object function total intensity collaboration increases concepts in physics convergence angle area spherical aberration wide range covering today geometric shapes d.n.a. structure central minimum electron microscopy focal point intensity increases linear imaging model wave vectors control theory optical devices collection angle larger aperture electron microscope high angle architectural elements signal processing photography high pass filter transfer function uncorrected system phase shift darkfield regime functional form scattered electrons higher frequency bright field stem egyptian artefact types diffraction pattern science of photography point spread function high intensity probe elementary geometry integrals spatial frequency optics objective lens bright field regime bright spots real space low frequency reciprocal space blurring contribution sphere collaboration uncorrected instrument characteristic dimension incoherent imaging condition surfaces aperture function wave front atomic physics imaging mode contract transfer function white noise scanning transmission electron cohere imaging previous lecture distant plane elementary shapes stem higher angles high resolution incoherent linear image mil rating detector geometries field cone geometry types of functions aberration corrected constant phase length lower frequencies chromatic aberration conic sections amplitude squared aberration free scientific techniques microscopes measuring instruments intensity squared optic axis intensity decreases contrast transfer diffraction limit stem image individual atom radio spectrum incoherent imaging quantum mechanics aberration free probe multivariable calculus people meters focal plane bright field low angle amateur radio systems theory image plane coherent imaging condition collecting electrons blurring function transmission electron microscopy physical quantities digital photography angular spread double integral coherent imaging largest range face shift higher order aberrations raleigh criterion pio fairly interpretable transmission electron microscope square pulse geometrical optics digital signal processing 1st order caption complete probe tails nyquist limit blue curve subroutines broadcasting filter frequency response maximum frequency high frequency caustic curve hand side low pass filter spatial coordinates atoms closer coherent image sparrow criterion structural system pico meter dark background frequency space optimal aperture t.m. complex conjugate contrast transfer function wave function measure ultimately imaging condition annular darkfield incoherent imaging mode atomic number field stem atomic column inelastic interactions nobel prize angle medium chemistry focal imaging probe size From James Overhiser on February 15th, 2019 31 plays
46:22 Introduction to EELS (Part 2) Introduction to EELS (Part 2)	Introduction to EELS (Part 2) 2017 PARADIM Intro to EELS part 2 Paolo Longo atomic level state functions f.b.i. chemical shift philosophical terminology concepts in physics metals real fast pixel time chemical elements noise switch energy cubic minerals transition metals video energy image processing caption complete vertical binning ontology c.c.d. quantum mechanics metallurgy energy drift optical devices scientific terminology collection angle recollection angle semiconductor materials pyrotechnic fuels chemical analysis huge amount energy resolution historical scientific instruments spectroscopy beam sitting lot smaller latest version astronomical instruments e.d.s. digital micrograph fasting pretty hard 1st thing convergence angle graphic layers superhard materials building materials physical quantities digital photography photography equipment ferromagnetic materials gemstones energy range geometry pretty large camera lens biology and pharmacology of chemical elements time series microscopy carbides thought dietary minerals laboratory equipment iron stable microscope cognition silicon carbide valves e.l.c. core loss From James Overhiser on February 15th, 2019 16 plays