Feature oriented scanning FOS ref cite journal author R. V. Lapshin year 2004 title Feature oriented scanning methodology for probe microscopy and nanotechnology journal Nanotechnology volume 15 issue 9 pages 1135 1151 publisher IOP location UK issn 0957 4484 doi 10.1088 0957 4484 15 9 006 url http www.nanoworld.org homepages lapshin publications.htm feature2004 format PDF bibcode 2004Nanot..15.1135L ref ref cite journal author R. V. Lapshin year 2007 title Automatic drift elimination in probe microscope images based on techniques of counter scanning and topography feature recognition journal Measurement Science and Technology volume 18 issue 3 pages 907 927 publisher IOP location UK issn 0957 0233 doi 10.1088 0957 0233 18 3 046 url http www.nanoworld.org homepages lapshin publications.htm automatic2007 format PDF bibcode 2007MeScT..18..907L ref ref cite book author R. V. Lapshin year 2011 contribution Feature oriented scanning probe microscopy title Encyclopedia of Nanoscience and Nanotechnology editor H. S. Nalwa volume 14 pages 105 115 publisher American Scientific Publishers location ... scanning probe microscopy for remote controlled measurements on board a space laboratory or planet ... measurement of surface topography with a scanning probe microscope in which surface features ..., it is acceptable to use another name for the method object oriented scanning OOS . Any topography ... biology cells , etc. File R. V. Lapshin, Feature oriented scanning FOS , Fig. 1.png thumb Image ... with the conventional scanning, FOS allows obtaining a higher spatial resolution. Thanks to a number ... also Counter scanning Feature oriented positioning References references External links http www.nanoworld.org homepages lapshin research.htm fos1996 Feature oriented scanning , Research section, Lapshin ... oriented scanning , Dictionary of Nanotechnological Terms, Russian Corporation of Nanotechnologies Scanning probe microscopy Category Microscopes Category Scanning atomic force microscope Category Scanning ... more details
Scanning confocal electron microscopy SCEM is an electron microscopy technique analogous to confocal microscopy scanning confocal optical microscopy SCOM . In this technique, the studied sample is illuminated by a focussed electron beam, as in other scanning microscopy techniques, such as scanning transmission electron microscopy or scanning electron microscopy . However, in SCEM, the collection optics is arranged symmetrically to the illumination optics to gather only the electrons that pass the beam focus. This results in superior depth resolution of the imaging. The technique is relatively new ... old. However, practical design and construction of scanning confocal electron microscope is a complex ... ref ref cite journal author N.J. Zaluzec title The Scanning Confocal Electron Microscope journal Microsc ... ref ref cite journal author N.J. Zaluzec title Scanning Confocal Electron Microscopy journal Microsc ... using scanning confocal electron microscopy url http link.aip.org link ?APPLAB 81 2112 1 journal Appl. Phys. Lett. volume 81 year 2002 page 2112 doi 10.1063 1.1506010 issue 11 ref His first scanning ... been obtained ref name stage cite journal author A. Hashimoto et al. title Development of Stage scanning System for Confocal Scanning Transmission Electron Microscopy journal E J. Surf. Sci. Nanotech ... be laterally scanned. In the original design, this was achieved by placing synchronized scanning and descanning ... . As compared to conventional electron microscopy Transmission electron microscopy TEM , Scanning transmission electron microscopy STEM , Scanning electron microscope SEM , SCEM offers 3 dimensional imaging ... calculation of imaging properties of high resolution scanning confocal electron microscopy doi 10.1016 ... reflist See also colbegin 3 Confocal microscopy Confocal laser scanning microscopy Electron microscopy Scanning electron microscope Scanning transmission electron microscopy Transmission electron microscopy colend DEFAULTSORT Scanning Confocal Electron Microscopy Category Electron microscopy Category ... more details
Scanning Hall probe microscope SHPM is a variety of a scanning probe microscope which incorporates accurate sample approach and positioning of the scanning tunnelling microscope with a semiconductor Hall sensor . This combination allows to map the magnetic induction associated with a sample. Current state of the art SHPM systems utilize 2D electron gas materials e.g. gallium arsenide GaAs AlGaAs to provide high spatial resolution 300 nm imaging with high magnetic field sensitivity. Unlike the magnetic force microscope the SHPM provides direct quantitative information on the magnetic state of a material. The SHPM can also image magnetic induction under applied fields up to 1 Tesla unit tesla and over a wide range of temperatures millikelvins to 300 K . ref cite journal doi 10.1063 1.108334 journal Appl. Phys. Lett. volume 61 page 1974 year 1992 author title Scanning Hall probe microscopy last1 Chang first1 A. M. last2 Hallen first2 H. D. last3 Harriott first3 L. last4 Hess first4 H. F. last5 Kao first5 H. L. last6 Kwo first6 J. last7 Miller first7 R. E. last8 Wolfe first8 R. last9 Van Der Ziel first9 J. issue 16 unused data A. M. Chang, H.D. Hallen, L. Harriot, H.F. Hess, H. L. Los, J. Kao, R.E. Miller and T.Y. Chang ref References reflist See also Scanning probe microscope Scanning tunneling microscope SPM2 Category Scanning probe microscopy ... more details
Pencil beam scans Medical physics Ionizing radiation Ionizing radiation photon s or x ray s IMRT use pencil beam scanning to precisely target a tumor. Bone scan densitometry uses a fan scan system that replaces a pencil beam system. ref cite journal pmid 8220974 ref Radiation treatment planning has pencil beam scanning as one of its modalities. mean free path is involved in IMRT planning. Also used in Monte Carlo method for photon transport . Another three sources are Hybrid theory for photon transport in tissue which is a combination of Diffusion theory and the Monte Carlo method all using, in part, pencil beam scanning. Photon pencil beam scans are defined as crossing of two beams to a fine point. Charged particles Several charged particle s devices used with Proton therapy cancer centers use pencil beam scanning. ref http books.google.com books?id pWDQnxd r1UC&pg PA521 v onepage&q&f false ref The newer proton therapy machines use a pencil beam scanning technology. ref http www.accessdata.fda.gov cdrh docs pdf10 K100766.pdf page4 ref This technique is also called spot scanning. ref http www.mdanderson.org newsroom news backgrounders 03 30 09 advances in proton therapy pencil beam technology reach patient care.html ref The Paul Scherrer Institute was the developer of spot beam. ref http radmed.web.psi.ch asm gantry scan n scan.html ref See also Pencil mathematics Pencil optics Radiation treatment planning mean free path Monte Carlo method for photon transport Hybrid theory for photon transport in tissue Diffusion theory Monte Carlo method References reflist DEFAULTSORT Pencil Beam Scans Medical Physics Category Medical physics Category Radiobiology Category Radiation oncology ... more details
Nanotech Scanning Probe Microscopy SPM is a branch of microscopy that forms images of surfaces using ... as a function of position. SPM was founded with the invention of the scanning tunneling microscope in 1981. Many scanning probe microscopes can image several interactions simultaneously. The manner ... as a computer image. Established types of scanning probe microscopy AFM, atomic force microscopy ... films with conductive scanning probe microscopy journal Applied Physics Letters year 1999 bibcode 1999ApPhL..75.3527Z ref ECSTM electrochemical scanning tunneling microscope ref Cite conference publisher ... scanning tunneling microscope booktitle J. Vac. Sci. Technol. B accessdate 2009 10 05 date ... AVS doi 10.1116 1.587278 conference The 1993 international conference on scanning tunneling ... and drug induced degradation booktitle The 1993 international conference on scanning tunneling microscopy ... 12 1526 1 ref FOSPM, Feature oriented scanning feature oriented scanning probe microscopy ref cite book author R. V. Lapshin year 2011 contribution Feature oriented scanning probe microscopy title Encyclopedia ......67..249S ref NSOM, near field scanning optical microscopy or SNOM, scanning near field optical ... 2000ApPhL..77.3444R ref PSTM, photon scanning tunneling microscopy ref Cite journal doi 10.1103 .... Ferrell title New form of scanning optical microscopy journal Physical Review B accessdate 2009 10 ..., photothermal microspectroscopy microscopy SCM, scanning capacitance microscopy ref Cite journal doi ... Scanning capacitance microscopy journal Journal of Applied Physics year 1985 bibcode 1985JAP....57.1437M ref SECM, scanning electrochemical microscopy SGM, scanning gate microscopy ref Cite journal doi .... Topinka, J. A. Katine, R. M. Westervelt, K. L. Campman, A. C. Gossard title Cryogenic scanning probe ..., scanning Hall probe microscopy ref Cite journal doi 10.1063 1.108334 volume 61 issue 16 pages 1974 .... Miller, R. Wolfe, J. van der Ziel, T. Y. Chang title Scanning Hall probe microscopy journal Applied ... more details
The Knife Edge Scanning Microscope was invented and patented in the late 1990s by Bruce McCormick at Texas A&M University ref Kathy Flores 2007 . Dr. Bruce H. McCormick Texas A&M University. Retrieved 9 July 2008. ref . The microscope is intended to produce high resolution data sets in order to reconstruct 3D cellular structures. The machine is capable of handling tissue volumes of 1 to 100mm 3, recording large volumes of tissue in a small amount of time 7mm 2s 1 ref B. H. McCormick, Development of the Brain Tissue Scanner, Technical Report, Brain Networks Laboratory, Department of Computer Science, Texas A&M University, College Station, Texas, 2002. PDF ref . The resolution and scanning speed of KESM is a novel method for imaging tissue at resolutions sufficient to reconstruct maps of cellular distribution and morphology. The technique preserves the alignment of serial sections accurately enough to reconstruct neuronal processes and microvasculature ref Knife edge scanning microscope KESM http research.cs.tamu.edu bnl kesm.html ref . References references Category Microscopes ... more details
Partner assisted scanning or listener assisted scanning is an augmentative and alternative communication technique used to enable a person with severe speech impairments to communicate. The approach is used with individuals who, due to sickness or disability, have severe motor impairments and good memory and attention skills. ref Beukelman & Mirenda, 2005, p.41 ref It is used as an alternative to direct access e.g. pointing to symbols, pictures, or Voice output communication aid speech generating devices when these are not used. ref name lili Lilienthal, N. 2009 . http www.speechpathologyguru.com what is partner assisted visual scanning a125 What is Partner Assisted Visual Scanning? Retrieved May 2010. ref Users of partner assisted scanning Partner assisted scanning is a technique used with children who have severe motor and communication impairments, and especially those with additional ... 2010 ref Adults may also use scanning with a partner when they are not using their more high tech alternative communication device. ref name lili Partner assisted scanning can also be the main means .... 41 ref ref Beukelman & Mirenda, 2005, p.443 ref Technique In partner assisted scanning, the communication ... to communicate something, and the individual then makes their selection. Scanning refers to the process ... you how I communicate Retrieved May 2010 ref Efficiency may be increased in visual partner scanning ... can point to groups of words. Visual scanning may also be accomplished by the partner pointing ... name lili Auditory scanning with a partner is often used when the communicator has very poor vision ..., 2005, p.42 ref Auditory scanning can also be accomplished with lists of novel messages. The partner ... . ref PISP. http www.pisp.ca strategies documents AuditoryScanningSkills 000.pdf Auditory Scanning ... Assisted Scanning . Retrieved May 2010 ref Jean Dominique Bauby , who had locked in syndrome , used partner assisted scanning to communicate and to write his book The Diving Bell and the Butterfly . ref ... more details
Unreferenced date November 2008 Scanning probe lithography describe a set of lithographic methods, in which a microscopic or nanoscopic stylus is moved mechanically across a surface to form a pattern. This type of method can be split in two different groups Constructive In which the patterning is done by directly transferring chemical species to the surface Dip Pen Nanolithography Destructive In which the patterning is done by providing the substrate with energy Either mechanical, or Thermal Probe Lithography thermal , photonic, ionic, electronic, Xrays, and so on and so forth to physically, chemically, electronically deform the substrate s surface. Examples include nanoimprint lithography and local oxidation nanolithography . technology stub SPM2 Nanolith Category Scanning probe microscopy ... more details
Xenon enhanced CT scanning is a method of computed tomography CT scanning used for neuroimaging in which the subject inhales xenon gas while CT images are made. ref name Zink01 cite journal author Zink BJ title Traumatic brain injury outcome Concepts for emergency care journal Ann Emerg Med volume 37 issue 3 pages 318 32 year 2001 month March pmid 11223769 doi 10.1067 mem.2001.113505 ref The method can be used to assess changes in cerebral blood flow in the period shortly after a traumatic brain injury . ref name Zink01 The diffusion of the gas into the tissues shows how much blood flow each area is getting. ref name Zink01 References reflist Category Neurotrauma Category X ray computed tomography medicine stub ... more details
one source date December 2010 A Scanning Mobility Particle Sizer abbreviated SMPS is a spectrometer and can measure particles from 2.5 nm to 1000 nm ref http www.tsi.com en 1033 products 2212 scanning mobility particle sizer C3 A2 E2 80 9E C2 A2 spectrometers.aspx ref . They employ a continuous, fast scanning technique to provide high resolution measurements quickly and effectively. The particles that are investigated can be of biological or chemical nature. The spectrometer can be applied in situations like air quality measurement indoors, vehicle exhaust pipes, research in bioaerosol s, atmospheric studies, toxicology testing, etc. References Reflist Category Spectrometers Category Electronic test equipment Category Signal processing Category Measuring instruments Category Laboratory equipment ... more details
Scanning gate microscopy SGM is a scanning probe microscopy technique with an electrically conductive tip used as a movable gate that couples capacitively to the sample and probes electrical transport on the nanometer scale. Typical samples are mesoscopic devices, often based on semiconductor heterostructure s, such as quantum point contacts or quantum dot s. Carbon nanotube s too have been investigated. In SGM one measures the sample s electrical conductance as a function of tip position and tip potential. This is in contrast to other microscopy techniques where the tip is used as a sensor, e.g., for forces. SGMs were developed in the late 1990s from atomic force microscope s. Most importantly, these had to be adapted for use at low temperatures, often 4 kelvin s or less, as the samples under study do not work at higher temperatures. Today an estimated number of ten research groups worldwide use the technique. References 1D probability density observed using scanned gate microscopy R.Crook , et al. , J. Phys. Condens. Matt. , 12 , L735 L740 2000 Coherent Branched Flow in a Two Dimensional Electron Gas A. Topinka et al. , Nature 410 , 183 2001 Scanned Probe Imaging of Single Electron Charge States in Nanotube Quantum Dots M. T. Woodside and P. L. McEuen, Science 296 , 1098 2002 Imaging fractal conductance fluctuations and scarred wave functions in a quantum billiard R. Crook et al. , Phys. Rev. Lett. 91 , 246803 2003 Spatially Resolved Manipulation of Single Electrons in Quantum Dots Using a Scanned Probe A. Pioda et al. , Phys. Rev. Lett. 93 , 216801 2004 Imaging and controlling electron transport inside a quantum ring B. Hackens et al. , Nature Phys. 2 , 826 2006 Classical Hall effect in scanning gate experiments A. Baumgartner et al. , Phys. Rev. B 74 , 165426 2006 , DOI 10.1103 PhysRevB.74.165426 Quantum Hall effect transition in scanning gate experiments A. Baumgartner et al. , Phys. Rev. B 76 , 085316 2007 , DOI 10.1103 PhysRevB.76.085316 SPM2 Category Scanning ... more details
Scanning thermal microscopy SThM is a type of scanning probe microscopy that maps the local temperature and thermal conductivity of an interface. The probe in a scanning thermal microscope is sensitive to local temperatures providing a nanoscale thermometer. Thermal measurements at the nanometer scale are of both scientific and industrial interest. Applications SThM allows thermal measurements at the nanoscale. These measurements can include temperature, thermal properties of materials, thermal conductivity , heat capacity , glass transition temperature , latent heat , enthalpy , etc. The applications ... scanning thermocouple probes doi 10.1109 84.911085 ref ref cite journal author Ocola, L. E. et al ... 3217 3220 year 2004 doi 10.1116 1.1808732 title Scanning thermal lithography Maskless, submicron ... Sub surface imaging by scanning thermal microscopy issue 2 ref Joule heating ref cite journal author ... Nanofabrication of sensors on cantilever probe tips for scanning multiprobe microscopy issue 3 ref Measuring ... resolution scanning thermal probe with servocontrolled interface circuit for microcalorimetry and other ... IEEE International Reliability Physics Symposium pages 294 299 year 2005 ref Low temperature scanning ... nano structures on Si using scanning near field thermal microscopy journal J. Appl. Phys. volume ... Majumdar A. Scanning thermal microscopy. Ann. Rev. Mater. Sci. volume 29 page 505 year 1999 doi 10.1146 annurev.matsci.29.1.505 title Scanning thermal microscopy journal Annual Review of Materials Science bibcode 1999AnRMS..29..505M ref History Scanning thermal microscopy SThM was invented by Williams ... Scanning thermal profiler issue 23 bibcode 1986ApPhL..49.1587W ref Technique SThM requires the use ... micromachined scanning thermal profiler with integrated elements for sensing and actuation issue 11 ... conduction. When scanning in non zero humidity, a liquid meniscus forms between the tip and sample ...?v zSvm1KaEd6k SThM tutorial http igorbarsukov.com sthm.html SThM FMR technique DEFAULTSORT Scanning ... more details
Scanning capacitance microscopy SCM is a variety of scanning probe microscopy in which a narrow probe electrode is held just above the surface of a sample and scanned across the sample. SCM characterizes the surface of the sample using information obtained from the change in electrostatic capacitance between the surface and the probe. SCM was initially devised as a quality control tool for the RCA CED Capacitance Electronic Disc ref name SCM Matey cite journal last Matey first JR coauthors J Blanc title Scanning Capacitance Microscopy journal Journal of Applied Physics year 1985 volume 57 issue 5 pages 1437 1444 doi 10.1063 1.334506 bibcode 1985JAP....57.1437M ref , a video disk technology that was a predecessor of the DVD. It has since been adapted for other systems and materials. SCM uses an ultra sharp conducting probe often Pt Ir or Co Cr metal covering an etched silicon probe to form a metal insulator semiconductor MIS MOS capacitor with a semiconductor sample if a native oxide is present. When no oxide is present, a Schottky capacitor is formed. When the probe and surface are in contact, an AC bias is applied, generating capacitance variations in the sample which can be detected using a GHz resonant capacitance sensor. The tip is then scanned across the semiconductor s surface ... of scanning capacitance microscopes journal Journal of Physics D volume 36 pages 598 602 year 2003 ... profiling by scanning capacitance microscopy volume 29 pages 471 504 year 1999 doi 10.1146 annurev.matsci.29.1.471 ... studied by scanning capacitance microscopy volume 87 pages 252908 1 to 252908 3 year 2005 doi 10.1063 ... structure of individual free standing germanium nanodots using spectroscopic scanning capacitance .....48h5002W issue 8 ref The high sensitivity of dynamical scanning capacitance microscopy, in which ... title Low temperature and high magnetic field dynamic scanning capacitance microscope volume 80 ......80a3704B ref References reflist 2 SPM2 Category Scanning probe microscopy ... more details
Unreferenced date December 2006 Scanning voltage microscopy SVM sometimes also called nanopotentiometry is a scientific experimental technique based on atomic force microscopy . A conductive probe, usually only a few nanometers wide at the tip, is placed in full contact with an operational Electronics electronic or optoelectronic sample. By connecting the probe to a high Electrical impedance impedance voltmeter and rastering over the sample s surface, a map of the electric potential can be acquired. SVM is generally nondestructive to the sample although some damage may occur to the sample or the probe if the pressure required to maintain good electrical contact is too high. If the input impedance of the voltmeter is sufficiently large, the SVM probe should not perturb the operation of the operational sample. SVM is particularly well suited to analyzing microelectronics microelectronic devices such as transistors or diodes or quantum electronic devices such as quantum well diode lasers directly because nanometer spatial resolution is possible. SVM can also be used to verify theoretical simulation of complex electronic devices. For example, the potential profile across the quantum well structure of a diode laser can be mapped and analyzed such a profile could indicate the electron and Electron hole hole distributions where light is generated and could lead to improved laser designs. In a similar technique, Scanning gate microscopy SGM , the probe is oscillated at some natural frequency some fixed distance above the sample with an applied voltage relative to the sample. The image is constructed from the X,Y position of the probe and the conductance of the sample, with no significant current passing through the probe, which acts as a local gate. The image is interpreted as a map of the sample s sensitivity to gate voltage. A lock in amplifier aids noise reduction by filtering ... include imaging defect sites in carbon nanotube s and doping profiles in nanowires. SPM2 Category Scanning ... more details
Merge to Confocal microscopy discuss Talk Confocal microscopy Merging confocal laser scanning microscopy into confocal microscopy date March 2012 Confocal laser scanning microscopy CLSM or LSCM is a technique for obtaining high Image resolution resolution optical images with depth selectivity. ref name Pawley 2006 cite book author Pawley JB editor title Handbook of Biological Confocal Microscopy publisher Springer location Berlin year 2006 edition 3rd isbn 0 387 25921 X ref The key feature of confocal ..., Thomas Cremer Thomas and Christoph Cremer designed a laser scanning process, which scans the three ... all picture by electronic means similar to those used in scanning electron microscopes. ref Considerations on a laser scanning microscope with high resolution and depth of field C. Cremer and T. Cremer ... scanning method with the 3D detection of biological objects labeled with fluorescent marker ... laser scanning microscope, a laser beam passes through a light source aperture and then is focused ... one or more servomechanism servo controlled oscillating mirrors. This scanning method usually has ... of GFP, green fluorescent protein with the protein of interest . Resolution enhancement CLSM is a scanning ... it with another scanning technique like that of the scanning electron microscope SEM . CLSM ... force microscope AFM or scanning tunneling microscope STM , for example, where the image is obtained by scanning with a fine tip over a surface. The distance from the objective lens to the surface ... element is associated with a discrete scattering or fluorescence intensity. Here, the size of the scanning ... the image of the scanning laser is not an infinitely small point but a three dimensional diffraction ... in vivo confocal microscopy of the living human cornea using white light and laser scanning techniques ... LSM Zeiss Laser Scanning Confocal Microscopy platform format form Carl Zeiss Two photon excitation microscopy Although they use a related technology both are laser scanning microscopes , multiphoton ... more details
The electrochemical scanning tunneling microscope , or ESTM , was invented in 1988 by Kingo Itaya in Japan. With ESTM, the structures of surfaces and electrochemical reactions in solid liquid interfaces can be observed at atom ic or molecule molecular scales. Electrochemical reactions occur in electrolyte electrolytic solutions &mdash for example electroplating , etching, Battery electricity batteries , and so on. On the electrode surface, many atoms, molecules, and ion s adsorb and affect the reactions. In the past, in order to obtain information about the structure of electrode surfaces and reactions, the sample electrode was taken out of the electrolytic solution and measured under ultra high vacuum UHV conditions. In this case, the structure of the surface changed and could not be observed precisely. By using this microscope, however, these problems are resolved. In electrolytic solutions, a very complicated electrical double layer of H sub 2 sub O molecules and anions is formed. In this layer, as the distribution of anion s changes with the potential of the electrode, it is necessary to control the reaction on the electrode. The potentials of the working electrodes the sample and the tip are controlled independently against a reference electrode . In this case, the tunneling bias voltage is the difference between the two potentials. A counter electrode is used to complete the current carrying circuits with the working electrodes. By using these four electrodes, the electrochemical reaction is controlled precisely by the external voltage, and the surface in liquid can be observed. External links http www.ntmdt.com spm notes view electrochemical measurements Electrochemical measurements application notes SPM2 Category Scanning probe microscopy zh ... more details
The electrically scanning microwave radiometer ESMR was an instrument carried by the Nimbus program Nimbus 5 satellite , precursor to the scanning multichannel microwave radiometer SSMR and special sensor microwave imager SSMI instruments. The ESMR instrument only senses horizontally polarized radiation at a frequency of 19 GHz, and can be used to calculate sea ice concentration . However, results are difficult to intercompare to SSMR SSMI. The ESMR scanned along the satellite track, leading to a wide range of incident angles SSMR scanned with a constant angle of 50 degrees, allowing both horizontally and vertically polarised data to be received SSMR also had 5 instead of one channels, leading to improved sea ice retrievals. ref cite book author1 Robert J. Gurney author2 James L. Foster author3 Claire L. Parkinson title Atlas of satellite observations related to global change url http books.google.com books?id rz OoxmaSosC&pg PA371 year 1993 publisher Cambridge University Press isbn 9780521434676 pages 371 ref References reflist External links cite web title Nimbus 5 ESMR Daily Polar Gridded Brightness Temperatures date May 2008 publisher National Snow and Ice Data Center url http nsidc.org data docs daac nsidc0077 esmr tbs.gd.html Category Satellite meteorology and remote sensing physics stub ... more details
Cleanup date May 2011 Industrial CT computed tomography scanning is a process which uses X ray equipment to produce three dimensional representations of components both externally and internally. Industrial CT scanning has been used in many areas of industry for internal inspection of components. Some of the key uses for CT scanning have been flaw detection, failure analysis, metrology, assembly analysis and reverse engineering applications. ref Flisch, A., et al. Industrial Computer Tomography in Reverse ... There are many advantages to using CT scanning over traditional techniques such as Coordinate measuring ... the first CAD model Classification of industrial CT scanning systems class wikitable Type Power Range ... CT scanning mesh based optimisation methods for industrial X ray computer tomography applications ... CT Scanner Beamline right Cone Beam Scanner History Industrial CT scanning technology was introduced ... Engineering Tool . 3D Scanning Technologies. July 5, 2010 http www.3dscanningtechnologies.com ComputedTomographyPage.php ... of CT in 3D Scanning of Industrial Parts. August 18, 2010. http www.3dscanningtechnologies.com pdfs parts.pdf ref Many advances in CT scanning have allowed for its use in the industrial field ... forms of analysis using CT is assembly or visual analysis. CT scanning has been largely used ... for disease and preventative medicine. For industrial CT scanning, the ability to see .... Also, devices can be analyzed without disassembly. Some software programs for industrial CT scanning ..., determining an object s porosity would require destructive testing. CT scanning can detect internal features and flaws without destroying the part. Industrial CT scanning 3D X ray is used to detect ... FEA , Fluid Dynamics and Mold Flow software. The CAD file created by CT scanning not only shows the external ... of destructive testing. Industrial CT scanning allows for full metrology of the CT datasets ... here automatically Reflist Categories DEFAULTSORT Industrial Ct Scanning Category Tomography Category ... more details
Image Lefteyeoptomap brightened.jpg right thumb 250px Retinal image of a left eye via Optos Optomap . Scanning laser ophthalmoscopy SLO is a method of examination of the eye. It uses the technique of confocal laser scanning microscopy for diagnostic imaging of retina or cornea of the human eye. As a method ... ref Scanning Laser Ophthalmoscopy SLO utilizes horizontal and vertical scanning mirrors to scan a specific .... Scanning Laser Ophthalmoscope. Biomedical Engineering, IEEE Transactions on. 1981 BME 28 7 488 92. ref Adaptive Optics Scanning Laser Ophthalmoscopy Adaptive Optics Scanning Laser Ophthalmoscopy AOSLO ... aberrations from images obtained from scanning laser ophthalmoscopy of the retina. History Scanning ... than ever before. ref name cSLO Webb R, Hughes G, Delori F. Confocal scanning laser ophthalmoscope .... ref Sharp P, Manivannan A. The scanning laser ophthalmoscope. Physics in Medicine and Biology ... both into and out of the pupil during scanning. The invention and adaptation of the Shack Hartmann ... on a target while in the mount. ref name app Roorda A. Applications of adaptive optics scanning ... scanning mirror before and after the eye is scanned to align the moving beam for eventual retinal raster ... Sep Oct 52 5 380 5. ref Furthermore, scanning of subjects with cone dystrophy and retinitis pigmentosa ... scanning laser ophthalmoscopy. Opt Express. 2006 14 487 97. ref However, by tracking these aberrations ... before scanning, fluorescence adaptive optics scanning laser ophthalmoscopy FAOSLO can be utilized ... K, Roorda A, Hebert T. Optical slicing of human retinal tissue in vivo with the adaptive optics scanning ... N, Ustun T, editors. Precision targeting with a tracking adaptive optics scanning laser ophthalmoscope2006 ... imaging of human cone mosaic with adaptive optics enhanced scanning laser ophthalmoscopy and high speed transversal scanning optical coherence tomography. Opt Lett. 2008 Jan 1 33 1 22 4. ref ... DEFAULTSORT Scanning Laser Ophthalmoscopy Category Medical equipment Category Eye procedure ... more details
chains of the organic semiconductor quinacridone on graphite . A scanning tunneling microscope STM ... Cite journal author G. Binnig, H. Rohrer title Scanning tunneling microscopy journal IBM Journal .... ref name Bai Cite book author C. Bai title Scanning tunneling microscopy and its applications ... to Scanning Tunneling Microscopy year 1993 url http www.columbia.edu jcc2161 documents STM 2ed.pdf ... thumb 250px A close up of a simple scanning tunneling microscope head using a platinum iridium ... in order to visually emphasize important features. In addition to scanning across the sample ... scanning tunneling spectroscopy STS and typically results in a plot of the local density of states ... journal author G. Schitter, M. J. Rost year 2008 title Scanning probe microscopy at video rate journal ... 1369 7021 doi 10.1016 S1369 7021 09 70006 9 url http www.materialstoday.com view 2194 scanning probe ... title Fast acting piezoactuator and digital feedback loop for scanning tunneling microscopes journal ... 1996 title Direct measurement of surface diffusion using atom tracking scanning tunneling microscopy ... thumb 400px right Schematic view of an STM The components of an STM include scanning tip, piezoelectric ... of curvature applications radius of curvature of the scanning tip of the STM. Additionally, image ... the tip position with respect to the sample, scanning the sample and acquiring the data is computer ... of hysteresis loop and its application to the scanning tunneling microscope journal Review ... microscope images based on techniques of counter scanning and topography feature recognition journal ... author R. V. Lapshin year 2004 title Feature oriented scanning methodology for probe microscopy ... oriented scanning probe microscopy title Encyclopedia of Nanoscience and Nanotechnology editor ... scanning microscopy PSTM , which uses an optical tip to tunnel photons ref name Bai scanning tunneling ... scanning tunneling microscopy SPSTM , which uses a ferromagnetic tip to tunnel spin polarized electrons ... more details
A Scanning Helium Ion Microscope SHIM, HeIM or HIM is a new imaging technology based on a scanning helium ion beam. ref http nanotechwire.com news.asp?nid 2120 NanoTechWire.com Press Release ALIS Corporation Announces Breakthrough in Helium Ion Technology for Next Generation Atomic Level Microscope , December 7th, 2005 retrieved on November 22nd, 2008 ref This technology has several advantages over the traditional scanning electron microscope SEM . Due to the very high source brightness, and the short De Broglie wavelength of the helium ions, which is inversely proportional to their momentum, it is possible to obtain qualitative data not achievable with conventional microscopes which use photons or electrons as the emitting source. As the helium ion beam interacts with the sample, it does not suffer from a large excitation volume, and hence provides sharp images on a wide range of materials. Compared to a SEM, the secondary electron yield is quite high, allowing for imaging with currents as low as 1 femtoamp . The detectors provide information rich images which offer topographic, material, crystallographic, and electrical properties of the sample. In contrast to other ion beams, there is no discernible sample damage due to relatively light mass of the helium ion. Since 2007 this technology is commercialized and instruments have been shipped to customers. ref http www.smt.zeiss.com C1256A770030BCE0 WebViewTopNewsAllE 573B9EA1B720BBBEC12573080048AF79 Carl Zeiss SMT Press Release Carl Zeiss SMT Ships World s First ORION Helium Ion Microscope to U.S. National Institute of Standards and Technology , July 17th, 2008 retrieved on November 22nd, 2008 ref A surface resolution of 0.24 nanometer s has been demonstrated. ref http www.fabtech.org news a microscopy resolution record claimed by carl zeiss Fabtech.org Microscopy resolution record claimed by Carl Zeiss , November 21st ... Resolution Using Scanning Helium Ions , November 21st, 2008 retrieved on November 22nd, 2008 ... more details
Technical date September 2010 Cleanup date October 2011 Scanning Tunneling Spectroscopy STS is an extension of Scanning Tunneling Microscopy STM which is used to provide information about the density of electrons in a sample as a function of their energy. In scanning tunneling microscopy, a metal tip .... The scanning tunneling microscope is used to obtain topographs topographic maps of surfaces ... have been obtained with atomic precision. However, the scanning tunneling microscope does NOT measure ... of something as a function of energy. For scanning tunneling spectroscopy the scanning tunneling ..., a scanning tunneling spectrum is obtained by placing a scanning tunneling microscope tip above a particular ... of tunnel junction Scanning tunneling spectroscopy STS is an experimental technique which uses a scanning tunneling microscope STM to probe the local density of electronic states LDOS and the band ... current in a scanning tunneling microscope only flows in a region with diameter 5 , STS ... and D. F. Padowitz, Methods of Tunneling Spectroscopy with the STM, from Scanning Probe Microscopy .... Julian Chen, Introduction to Scanning Tunneling Microscopy , Oxford University Press New York 1993 ..., Scanning Probe Microscopy and Spectroscopy Methods and Applications , Cambridge, UK Cambridge University ... Barrett R. C. Barrett and S. Park, Design Considerations for an STM System, from Scanning Tunneling ... the spectra acquisition, the tip sample bias is returned to the scanning value, and the scan resumes ... spacing scanning tunneling spectroscopy CS STS , the tip stops scanning at the desired location ... in phase with the modulation voltage is recorded. In variable spacing scanning tunneling spectroscopy ... structure of antimony on the GaAs 110 surface studied by scanning tunneling microscopy, Phys ... and J. A. Stroscio, Methods of Tunneling Spectroscopy, from Scanning Tunneling Microscopy , Ed. by W ... Hamers2 R. J. Hamers, STM on Semiconductors, from Scanning Tunneling Microscopy I , Springer Series ... more details
Orphan date November 2010 Scanning Joule Expansion Microscopy is a form of scanning probe microscopy heavily based on atomic force microscopy that maps the temperature distribution along a surface. Resolutions down to 10 nm have been achieved ref name Gurrum and 1 nm resolution is theoretically possible. Thermal measurements at the nanometer scale are of both academic and industrial interest, particularly in regards to nanomaterials and modern integrated circuits . Basic Principles File SJEM schematic.png thumb 400 px right Simplified schematic of Scanning Joule expansion microscope. Scanning Joule Expansion Microscopy SJEM is based on the contact operation model of Atomic Force Microscopy AFM . During the operation, the tip on the cantilever is brought into contact with the surface ... in periodic thermal expansion. ref name Varesi J. Varesi, A. Majumdar, Scanning Joule Expansion ... Distributions Measured by Scanning Joule Expansion Microscopy, Journal of Heat Transfer , 120 ..., and A.D. Wieck, Study of the hot spot of an in plane gate transistor by scanning Joule Expansion Microscopy ... on the whole system cantilever, sample surface, etc . By comparison, Scanning Thermal Microscopy ... to achieve resolution around 25 nm. ref name Majumdar Scanning Joule Expansion Microscopy ... for Scanning Thermal Microscopy are rather expensive and more importantly very fragile. Scanning ... and Implementation of Scanning Joule Expansion Microscopy . MS thesis, 1997 ref Pressure waves ... vias studied by scanning Joule expansion microscopy, IEEE Electron Device Lett. , 21, 224 2000 ... Conductivity of Thin Metallic Films Investigated by Scanning Joule Expansion Microscopy , Journal of heat ..., further increasing processing and decreasing throughput. During scanning, the magnitude of the voltage, frequency, and scanning speeds need to be considered. Calibration must also be done using a reference ... Reflist DEFAULTSORT Scanning Joule Expansion Microscopy Category Scanning probe microscopy ... more details
refimprove date January 2009 Scanning SQUID microscopy is a technique where a superconducting quantum interference device SQUID is used to image surface magnetic field strength with micrometre scale resolution. A tiny SQUID is mounted onto a tip which is then rastered near the surface of the sample to be measured. As the SQUID is the most sensitive detector of magnetic fields available and can be constructed at submicrometre widths via lithography, the scanning SQUID microscope allows magnetic fields to be measured with unparalleled resolution and sensitivity. The first scanning SQUID microscope was built in 1992 by Black et al. . ref cite journal last Black first R.C. coauthors A. Mathai, and F. C. Wellstood, E. Dantsker, A. H. Miklich, D. T. Nemeth, J. J. Kingston, and J. Clarke title Magnetic microscopy using a liquid nitrogen cooled YBa sub 2 sub Cu sub 3 sub O sub 7 sub superconducting quantum interference device year 1993 journal Appl. Phys. Lett. volume 62 pages 2128&ndash 2130 doi 10.1063 1.109448 issue 17 ref Since then the technique has been used to confirm unconventional superconductor ... loop. The Scanning SQUID microscope is based upon the thin film Direct current DC SQUID. A DC SQUID ... in most scanning SQUID microscopes is sufficient for almost any SQUID size for many applications, and therefore .... Operation Operation of a scanning SQUID microscope consists of simply cooling down the probe ... can also be used to track the position of the SQUID with respect to the sample. Applications The Scanning ... behind the scanning SQUID microscope, the phase of the wavefunction is also altered by the amount ... 0 sub 2. Tsuei et al. . used a scanning SQUID microscope to measure the local magnetic field at each .... See also Josephson Effect BCS theory Cryogenics Low Temperature Physics Scanning SQUID microscope ... in scanning SQUID microscopy. http www.neiu.edu pjdolan Link5 Design and applications of a scanning ... Category Superconductivity Category Josephson effect Category Microscopes Category Scanning ... more details
Frequency scanning interferometry FSI is an absolute distance measurement technique, for measuring the distance between a pair of points, along a line of sight. The power of the FSI technique lies in its ability to make many such distance measurements, simultaneously. For each distance to be measured, a measurement interferometer is built using optical components placed at each end of a line of sight. The optical path of each measurement interferometer is compared to the optical path in a reference interferometer, by scanning the frequency of a laser connected to all interferometers in the system and counting fringe cycles produced in the return signals from each interferometer. The length of each measurement interferometer is given in units of reference length by the ratio of measurement interferometer to reference interferometer fringes. To give an example A frequency scan might produce 100 fringe cycles in the measurement interferometer and 50 in the reference interferometer. The measured interferometer is therefore twice the length of reference interferometer, to first order ignoring systematic errors see below . Reference interferometer precautions A typical reference interferometer is held at a stable length in a controlled environment, to reduce the dominant systematic errors which arise from changes in optical path which occur during the laser frequency scan. Uses The great strength of the FSI technique is the ability to simultaneously compare any number of measurement interferometers to the same reference length. This has great benefit in a shape measurement system. An FSI system is being used to monitor shape changes of the semiconductor tracker SCT on the ATLAS experiment ATLAS detector at CERN . Precision The measurement sensitivity depends on how rapidly the laser is tuned and how well systematic errors are controlled. Currently precisions of a few nm over a 6m path are possible in evacuated interferometers. In a system built for the ATLAS experiment a target ... more details
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