Search results for "Linear drift"

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Vertical and lateral drift corrections of scanning probe microscopy images

2010

A procedure is presented for image correction of scanning probe microscopy data that is distorted by linear thermal drift. The procedure is based on common ideas for drift correction, which the authors combine to a comprehensive step-by-step description of how to measure drift velocities in all three dimensions and how to correct the images using these velocities. The presented method does not require any knowledge about size or shape of the imaged structures. Thus, it is applicable to any type of scanning probe microscopy image, including images lacking periodic structures. Besides providing a simple, ready-to-use description of lateral and vertical drift correction, they derive all formul…

Chemistrybusiness.industryProcess Chemistry and Technologyscanning probe microscopyLinear driftLateral driftImage correction530Measure (mathematics)Surfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsScanning probe microscopyOpticsVertical driftThermalMaterials ChemistryElectrical and Electronic EngineeringbusinessInstrumentationJournal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena
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Analysis of hazardous chemicals by “stand alone” drift tube ion mobility spectrometry: a review

2020

Ion mobility spectrometry (IMS) is a widely used technique based on gas phase ion separation under an electric field by differences in ion mobilities. In the last decade, IMS techniques have received increased attention due to their high operational speed and sensitivity. Currently, there are different IMS devices focused on solving different analytical performances, mainly based on linear drift tube (DT IMS), traveling wave, and field asymmetric waveform ion mobility spectrometers. In this review we summarize the main applications of DT-IMS devices for the determination of semi-volatile hazardous chemicals such as: illegal drugs, pesticides, explosives, chemical warfare agents, and others,…

Drift tubeExplosive materialSpectrometerbusiness.industryIon-mobility spectrometryGeneral Chemical EngineeringGeneral EngineeringLinear driftAnalytical ChemistryIonHazardous wasteComputer Science::Networking and Internet ArchitectureEnvironmental scienceAsymmetric waveformProcess engineeringbusinessAnalytical Methods
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