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A Simple Scanning Electron Microscope [PDF]

open access: bronzeReview of Scientific Instruments, 1969
A simple scanning microscope has been built which uses a field emission electron gun alone, without the aid of auxiliary lenses. The design and operation of the microscope are described and the calculated performance is compared with experiment. Resolution of 100 Å has been obtained and is shown in transmission electron micrographs.
Crewe, A. V, Isaacson, M., Johnson, D.
  +9 more sources

Low-cost electron detector for scanning electron microscope [PDF]

open access: yesHardwareX, 2023
Electron microscopy is an indispensable tool for the characterization of (nano) materials. Electron microscopes are typically very expensive and their internal operation is often shielded from the user.
Evgenii Vlasov   +2 more
doaj   +2 more sources

Scanning electron microscope-based evaluation of eggshell quality [PDF]

open access: yesPoultry Science
: The eggshell is the outermost covering of an egg that provides physical and chemical protection. It is a major source of calcium and minerals for the growing embryo during incubation.
Prem Lal Mahato   +4 more
doaj   +2 more sources

Tick (Acari: Ixodidae) infestation of cuscuses from Maluku Province, Indonesia [PDF]

open access: yesVeterinary World, 2021
Background and Aim: Cuscuses are one of the endemic Indonesian marsupials, which needs to be protected and revived in terms of the numbers and range of species. Ectoparasites of ticks (Ixodidae) are one potential obstacle to cuscus conservation.
Prasetyarti Utami   +2 more
doaj   +1 more source

Isolation and Partial Characterization of Glycolipopeptide Biosurfactant Derived from A Novel Lactiplantibacillus plantarum Lbp_WAM

open access: yesMaǧallaẗ al-baṣraẗ al-ʻulūm al-zirāʻiyyaẗ, 2022
Biosurfactants are amphipathic molecules generated by a variety of microorganisms with different biological functions. In this study, lactic acid bacteria were screened for their emulsification properties.
Alaa A. Al-Seraih   +4 more
doaj   +1 more source

Near-Field Scanning Millimeter-Wave Microscope Operating Inside a Scanning Electron Microscope: Towards Quantitative Electrical Nanocharacterization

open access: yesApplied Sciences, 2021
The main objectives of this work are the development of fundamental extensions to existing scanning microwave microscopy (SMM) technology to achieve quantitative complex impedance measurements at the nanoscale.
Petr Polovodov   +7 more
doaj   +1 more source

Direct imaging of electron density with a scanning transmission electron microscope

open access: yesNature Communications, 2023
Recent studies of secondary electron (SE) emission in scanning transmission electron microscopes suggest that material’s properties such as electrical conductivity, connectivity, and work function can be probed with atomic scale resolution using a ...
Ondrej Dyck   +8 more
doaj   +1 more source

A scanning electron microscopic study of hypercementosis [PDF]

open access: yesJournal of Applied Oral Science, 2008
The purpose of this study was to evaluate morphological characteristics of teeth with hypercementosis that are relevant to endodontic practice. Twenty-eight extracted teeth with hypercementosis had their root apexes analyzed by scanning electron microscopy (SEM). The teeth were divided according to tooth groups and type of hypercementosis.
Pinheiro, Bethânia Camargo   +3 more
openaire   +6 more sources

A method of magnetic field measurement in a scanning electron microscope using a microcantilever magnetometer

open access: yesMetrology and Measurement Systems, 2020
Scanning electron microscopy (SEM) is a perfect technique for micro-/nano-object imaging [1] and movement measurement [2, 3] both in high and environmental vacuum conditions and at various temperatures ranging from elevated to low temperatures.
Orłowska Karolina   +10 more
doaj   +1 more source

A fluorescence scanning electron microscope

open access: yesUltramicroscopy, 2009
Fluorescence techniques are widely used in biological research to examine molecular localization, while electron microscopy can provide unique ultrastructural information. To date, correlative images from both fluorescence and electron microscopy have been obtained separately using two different instruments, i.e.
Kei-ichiro Nakamura   +6 more
openaire   +3 more sources

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