Search for tag: "aberration corrected"

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Electron Tomography - Practical Aspects duration 56 minutes 17 seconds 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 57 plays
Electron Tomography - Theory duration 1 hour 23 minutes Electron Tomography - Theory Electron Tomography - Theory	Electron Tomography - Theory 2017 PARADIM SUMMER SCHOOL Tomography Theory Ercius cartesian space dimensional space dimensional thing scale tomography dimensional reconstruction projection requirement solutions extremely high resolution original image physical science maximum tilting tilt series long time electron microscopy electron tomography compressed sensing inverse nanometers scientific techniques dimensional structure materials science equal angle signal processing concepts in physics photography low dose 1st thing point defect higher frequency single projection diffraction pattern pretty good microscopy needle sample big difference free transform original object spatial frequency vision carbon atom real space adam counting reciprocal space emerging technologies cat f.f.t. dimensional image perfect projections original projection atomic physics projected density experimental projections nano particles stem medical imaging high resolution carbon good reconstruction original projection direction unique object aberration corrected atomic scale beam electrons experimental data tilt axis original intensity nanometer depth pseudo polar microscopes reconstruction technique projection operation low frequency radio spectrum equally slope tomography quantum mechanics kinematics concentric squares cat scan higher dimensional quantum dot analytic geometry iterative loop entire image equal distance iterative algorithm classical mechanics digital photography called equally slope linear algebra grand challenge single particle simpler interpellation dimensional object geometry limitation high tilts nano scale phoria transform english alternative rock groups resolution tomography reconstruction packages building block caption complete digital geometry computer graphics free space reconstruction algorithm improve reconstructions high frequency atomic resolution projection image shell particle cohen resolution dimensional picture sine wave crystallographic defects t.m. advanced algorithms iterative process missing wedge information theory continuous function material science tomography experiment broadcasting mass sample things elementary mathematics chemistry electron microscope nanomaterials From James Overhiser 227 plays
Ronchigrams duration 1 hour 16 minutes 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 229 plays
Linear Imaging Theory duration 1 hour 1 minute 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 154 plays