Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Correlations02:20

Correlations

35.9K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
35.9K
Correlation and Causation01:27

Correlation and Causation

42.5K
Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
42.5K
Beams01:30

Beams

1.9K
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
1.9K
Correlation01:09

Correlation

15.1K
In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
15.1K
Deflection of a Beam01:19

Deflection of a Beam

723
Accurately determining beam deflection and slope under various loading conditions in structural engineering is crucial for ensuring safety and structural integrity. Singularity functions offer a streamlined approach to analyzing beams, especially when multiple loading functions complicate the bending moment equation.
Singularity functions, described in an earlier lesson, are powerful mathematical tools that represent discontinuities within a function commonly encountered in structural loading...
723
Electron Carriers01:24

Electron Carriers

91.8K
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons.
Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
91.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Analysis of spatial point patterns in electron-counting images.

Microscopy (Oxford, England)·2022
Same author

Properties of electrostatic correcting systems with annular apertures.

Microscopy (Oxford, England)·2019
Same author

Electron holography on Fraunhofer diffraction.

Microscopy (Oxford, England)·2019
Same author

Information transfer of 25.5 nm-1 in a 1-MV field-emission transmission electron microscope.

Microscopy (Oxford, England)·2016
Same author

Phase reconstruction in annular bright-field scanning transmission electron microscopy.

Microscopy (Oxford, England)·2014
Same author

Special Issue: "Tribute to Akira Tonomura". Foreword.

Microscopy (Oxford, England)·2013

Related Experiment Video

Updated: Jan 30, 2026

Sample Preparation by 3D-Correlative Focused Ion Beam Milling for High-Resolution Cryo-Electron Tomography
08:20

Sample Preparation by 3D-Correlative Focused Ion Beam Milling for High-Resolution Cryo-Electron Tomography

Published on: October 25, 2021

4.0K

Mechanism for correlation in a coherent electron beam.

Tetsuji Kodama1, Nobuyuki Osakabe2

  • 1Faculty of Science and Technology, Meijo University, Nagoya, Japan.

Microscopy (Oxford, England)
|January 23, 2019
PubMed
Summary

Electron count correlations were analyzed using Coulomb interactions. Repulsive forces during acceleration significantly impact electron trajectory and density, affecting correlations.

Keywords:
Coulomb scatteringPauli principlecorrelation spectroscopyelectron interferometry

More Related Videos

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K
Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles
11:16

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles

Published on: August 7, 2016

10.2K

Related Experiment Videos

Last Updated: Jan 30, 2026

Sample Preparation by 3D-Correlative Focused Ion Beam Milling for High-Resolution Cryo-Electron Tomography
08:20

Sample Preparation by 3D-Correlative Focused Ion Beam Milling for High-Resolution Cryo-Electron Tomography

Published on: October 25, 2021

4.0K
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
10:39

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

Published on: October 11, 2016

10.1K
Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles
11:16

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles

Published on: August 7, 2016

10.2K

Area of Science:

  • Physics
  • Electron Optics
  • Quantum Mechanics

Background:

  • Understanding electron correlations is crucial for advanced electron microscopy and lithography.
  • The Coulomb interaction between electrons plays a significant role in their trajectories and detection.
  • Previous experimental results provide a basis for theoretical analysis.

Purpose of the Study:

  • To analyze the correlation of electron counts from two detectors.
  • To develop a full statistical description of electron counts based on Coulomb interactions.
  • To identify the dominant factors contributing to electron count correlation.

Main Methods:

  • Associating the electron beam path through lenses with direct Coulomb interaction.
  • Analyzing the statistical distribution of electron counts.
  • Investigating the effect of trajectory displacement and defocusing on electron correlation.

Main Results:

  • A full statistical description of electron counts was achieved.
  • Trajectory displacement due to repulsive Coulomb interaction is the dominant correlation contributor.
  • Electron count correlation depends on defocusing and virtual source shift within the correlation time.
  • Coulomb scattering during acceleration decreases electron density and causes large-angle scattering.

Conclusions:

  • The study provides a comprehensive statistical description of electron count correlations.
  • Coulomb interactions, particularly during acceleration, are key drivers of observed correlations.
  • The findings align with and explain previous experimental observations.