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@INPROCEEDINGS{AzuaHumara:1034901,
author = {Azua Humara, Ana Daniela and Schierholz, Roland},
othercontributors = {Camara, Osmane and Ahmed, Jehad},
title = {{S}canning {E}lectron {M}icroscopy ({SEM})},
school = {RWTH Aachen},
reportid = {FZJ-2025-00024},
year = {2024},
abstract = {As with other microscopes, the main function of the
Scanning Electron Microscope (SEM) is to examine small
objects that are imperceptible to human sight. It does that
by striking the sample surface with an electron beam of high
energy. [1] These incident electrons, also called primary
electrons, penetrate the sample promoting a variety of
signals, including secondary electrons (SE), backscattered
electrons (BSE), and X-ray emissions (Figure 1). [2] As each
signal provides different information about the sample, it
is important to understand the electron beam-sample
interaction.The signals can be regulated by adjusting the
parameters of the setup of the SEM. The three major
components are the following: i. The electron column, where
the electron beam is generated from an electron gun. The
beam then travels towards the sample, focused by
electromagnetic lenses. [2]ii. The sample chamber is located
at the base of the electron column and is kept under vacuum.
In there, the beam strikes the sample and SE, BSE and X-Ray
are emitted. Next, the detectors collect and convert the
signals into electrical pulses for latter processing.
[1]iii. The electronic controls are represented by the
interface of the SEM with the operator. It allows the user
to handle the microscope and control the acquisition of
information.Thus, the electron beam-sample interaction, the
type of signals obtained, and the fundamental adjustment of
the setup are the key topics to be addressed, so that
high-quality information can be acquired by the operator of
the SEM.},
month = {Aug},
date = {2024-08-26},
organization = {Electrochemistry Day 2024, Cologne
(Germany), 26 Aug 2024 - 27 Aug 2024},
subtyp = {Other},
cin = {IET-1},
cid = {I:(DE-Juel1)IET-1-20110218},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123) / HITEC -
Helmholtz Interdisciplinary Doctoral Training in Energy and
Climate Research (HITEC) (HITEC-20170406) / BMBF 03SF0589B -
Verbundvorhaben iNEW: Inkubator Nachhaltige Elektrochemische
Wertschöpfungsketten (iNEW) im Rahmen des Gesamtvorhabens
Accelerator Nachhaltige Bereitstellung Elektrochemisch
Erzeugter Kraft- und Wertstoffe mittels Power-to-X (ANABEL)
(03SF0589B)},
pid = {G:(DE-HGF)POF4-1231 / G:(DE-Juel1)HITEC-20170406 /
G:(BMBF)03SF0589B},
typ = {PUB:(DE-HGF)31},
url = {https://juser.fz-juelich.de/record/1034901},
}