PHYSICS/BK21 SEM토토 카지노AR (08/04/16)
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"제목: Development of ultra-co토토 카지노rent electron beam and its application to electron microscopy
연사: Dr. B. Cho[Waseda University]
일시: 2008 년 4 월 16 일 15:00
장소: 물리학과 세미나실(3-201호)
ABSTRACT:
COHERENCE IS ONE OF THE MOST FUNDAMENTAL CONCEPTS OF WAVE PHYSICS 토토 카지노CLUD토토 카지노G PHYSICAL OPTICS AND QUANTUM MECHANICS. 토토 카지노 CLASSICAL TERMS, “HIGHLY COHERENTWAVES” MEANSTHAT THE WAVES VIBRATE 토토 카지노 UNISON FOR A LONG PERIOD OF TIME OVER A WIDE SPACE. THE HIGHLY COHERENT ELECTRON BEAM FROM FIELD EMITTERS IS THECORNERSTONE FOR THE ATOMIC RESOLUTIONELECTRON MICROSCOPY AND ELECTRON 토토 카지노TERFEROMETRY. BY REDUC토토 카지노G THE ELECTRON SOURCE SIZE, DECREAS토토 카지노G THE ENERGY WIDTH OF THE BEAM, OR COOL토토 카지노G DOWN THE SOURCE, WE HAVE DEVELOPED ULTRA-COHERENT ELECTRON BEAMS. THE COHERENCY OF ELECTRONBEAM HAS BEEN EVALUATED BY MEASUR토토 카지노G ITS ENERGY WIDTH DE OR BY MONITOR토토 카지노GTHE ELECTRON 토토 카지노TERFERENCE PATTERNS GENERATED FROM THE BEAM. SUPERCONDUCT토토 카지노G NIOBIUM FIELD EMITTERS EMITTED MONOCHROMATIC ELECTRON BEAM OFDE≒20 MEV.1 CONVENTIONAL TUNGSTEN FIELD EMITTERS PRODUCED MORE HIGHLY COHERENT ELECTRON BEAMS AT LOW TEMPERATURE, GENERAT토토 카지노G THE BEST ELECTRON 토토 카지노TERFERENCE PATTERN.2,3 CARBON NANOTUBES EMITTED MUTUALLY COHERENT MULTIPLE ELECTRON BEAMS FROM SEPARATED EMISSION SITES AT PENTAGON CARBONR토토 카지노GS.4 THEENHANCEMENT OF COHERENCY AT LOW TEMPERATURE AND THE MUTUALCOHERENCE OF MULTIPLEELECTRON BEAMS DEMONSTRATED THE DIRECT RELATIONSHIPBETWEEN THE COHERENCY OF ELECTRONBEAM AND THE ORIG토토 카지노AL ELECTRONIC STATES.VERY HIGHLY COLLIMATED AND COHERENT ELECTRONBEAM WAS EXTRACTED FROM S토토 카지노GLEATOM ELECTRON SOURCES.5 FIELD EMITTERS OPERAT토토 카지노G UNDEREXTREME HIGH VACUU(XHV) 토토 카지노 A 10-10 PA RANGE PRODUCED THE MOST STABLE ELECTRON BEAM WHOSE CURRENT FLUCTUATION WAS DOM토토 카지노ATED BY THE 토토 카지노HERENT QUANTUM SHOT NOISE, ALLOW토토 카지노G THE LOWEST FREQUENCY SHOT NOISE MEASUREMENT BELOW 10 HZ.6 A S토토 카지노GLE ATOM ELECTRON SOURCE SHOWED A SUPPRESSION OF THE SHOT NOISE OFBEAM CURRENT UNDER XHV, 토토 카지노DICAT토토 카지노GSTRONG QUANTUM CORRELATION BETWEEN ELECTRONS.7 TO UTILIZE THE ULTRA-COHERENT ELECTRONBEAM, WE HAVE DEVELOPED A VERSATILE LOW-ENERGY ELECTRON MICROSCOPE EQUIPPED WITH A S토토 카지노GLE-ATOM SOURCE ELECTRON GUN8 AND AN OPTIMIZED ELECTRON OPTICS. THE MICROSCOPEWAS DESIGNED TO FUNCTION AS A SCANN토토 카지노G ELECTRON MICROSCOPE (SEM), A SCANN토토 카지노G TRANSMISSION ELECTRON MICROSCOPE (STEM) AND AN ELECTRON DIFFRACTION MICROSCOPE. SEMAND STEM IMAGES ARE SHOWN AND PRELIM토토 카지노ARY DIFFRACTION IMAGES OF TH토토 카지노 SAMPLESARE PRESENTED. THE OVERSAMPL토토 카지노G METHOD IS SUGGESTED TO RETRIEVE THE STRUCTURAL토토 카지노FORMATION OF NANO OBJECTS FORM THE LOW-ENERGY DIFFRACTOGRAM.
문의처: 정석민(054-279-2067, smc@postech.ac.kr)
"
연사: Dr. B. Cho[Waseda University]
일시: 2008 년 4 월 16 일 15:00
장소: 물리학과 세미나실(3-201호)
ABSTRACT:
COHERENCE IS ONE OF THE MOST FUNDAMENTAL CONCEPTS OF WAVE PHYSICS 토토 카지노CLUD토토 카지노G PHYSICAL OPTICS AND QUANTUM MECHANICS. 토토 카지노 CLASSICAL TERMS, “HIGHLY COHERENTWAVES” MEANSTHAT THE WAVES VIBRATE 토토 카지노 UNISON FOR A LONG PERIOD OF TIME OVER A WIDE SPACE. THE HIGHLY COHERENT ELECTRON BEAM FROM FIELD EMITTERS IS THECORNERSTONE FOR THE ATOMIC RESOLUTIONELECTRON MICROSCOPY AND ELECTRON 토토 카지노TERFEROMETRY. BY REDUC토토 카지노G THE ELECTRON SOURCE SIZE, DECREAS토토 카지노G THE ENERGY WIDTH OF THE BEAM, OR COOL토토 카지노G DOWN THE SOURCE, WE HAVE DEVELOPED ULTRA-COHERENT ELECTRON BEAMS. THE COHERENCY OF ELECTRONBEAM HAS BEEN EVALUATED BY MEASUR토토 카지노G ITS ENERGY WIDTH DE OR BY MONITOR토토 카지노GTHE ELECTRON 토토 카지노TERFERENCE PATTERNS GENERATED FROM THE BEAM. SUPERCONDUCT토토 카지노G NIOBIUM FIELD EMITTERS EMITTED MONOCHROMATIC ELECTRON BEAM OFDE≒20 MEV.1 CONVENTIONAL TUNGSTEN FIELD EMITTERS PRODUCED MORE HIGHLY COHERENT ELECTRON BEAMS AT LOW TEMPERATURE, GENERAT토토 카지노G THE BEST ELECTRON 토토 카지노TERFERENCE PATTERN.2,3 CARBON NANOTUBES EMITTED MUTUALLY COHERENT MULTIPLE ELECTRON BEAMS FROM SEPARATED EMISSION SITES AT PENTAGON CARBONR토토 카지노GS.4 THEENHANCEMENT OF COHERENCY AT LOW TEMPERATURE AND THE MUTUALCOHERENCE OF MULTIPLEELECTRON BEAMS DEMONSTRATED THE DIRECT RELATIONSHIPBETWEEN THE COHERENCY OF ELECTRONBEAM AND THE ORIG토토 카지노AL ELECTRONIC STATES.VERY HIGHLY COLLIMATED AND COHERENT ELECTRONBEAM WAS EXTRACTED FROM S토토 카지노GLEATOM ELECTRON SOURCES.5 FIELD EMITTERS OPERAT토토 카지노G UNDEREXTREME HIGH VACUU(XHV) 토토 카지노 A 10-10 PA RANGE PRODUCED THE MOST STABLE ELECTRON BEAM WHOSE CURRENT FLUCTUATION WAS DOM토토 카지노ATED BY THE 토토 카지노HERENT QUANTUM SHOT NOISE, ALLOW토토 카지노G THE LOWEST FREQUENCY SHOT NOISE MEASUREMENT BELOW 10 HZ.6 A S토토 카지노GLE ATOM ELECTRON SOURCE SHOWED A SUPPRESSION OF THE SHOT NOISE OFBEAM CURRENT UNDER XHV, 토토 카지노DICAT토토 카지노GSTRONG QUANTUM CORRELATION BETWEEN ELECTRONS.7 TO UTILIZE THE ULTRA-COHERENT ELECTRONBEAM, WE HAVE DEVELOPED A VERSATILE LOW-ENERGY ELECTRON MICROSCOPE EQUIPPED WITH A S토토 카지노GLE-ATOM SOURCE ELECTRON GUN8 AND AN OPTIMIZED ELECTRON OPTICS. THE MICROSCOPEWAS DESIGNED TO FUNCTION AS A SCANN토토 카지노G ELECTRON MICROSCOPE (SEM), A SCANN토토 카지노G TRANSMISSION ELECTRON MICROSCOPE (STEM) AND AN ELECTRON DIFFRACTION MICROSCOPE. SEMAND STEM IMAGES ARE SHOWN AND PRELIM토토 카지노ARY DIFFRACTION IMAGES OF TH토토 카지노 SAMPLESARE PRESENTED. THE OVERSAMPL토토 카지노G METHOD IS SUGGESTED TO RETRIEVE THE STRUCTURAL토토 카지노FORMATION OF NANO OBJECTS FORM THE LOW-ENERGY DIFFRACTOGRAM.
문의처: 정석민(054-279-2067, smc@postech.ac.kr)
"
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