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 Experiment Videos

Detection of hydrogen by electron Rutherford backscattering.

Maarten Vos1

  • 1Atomic Laboratory, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT. maarten.vos@rsphysse.anu.edu.au

Ultramicroscopy
|September 6, 2002
PubMed
Summary

A new electron beam method detects hydrogen in thin films by analyzing scattered electrons. This technique separates hydrogen signals from heavier elements, offering insights into material composition.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Virtual reality-based versus standard cognitive behavioral therapy for paranoia in schizophrenia spectrum disorders: a randomized controlled trial.

Nature medicine·2025
Same author

Virtual-reality cognitive behavior therapy versus cognitive behavior therapy for paranoid ideation: A pragmatic, single-blind, multicenter randomized clinical superiority trial.

Psychological medicine·2025
Same author

The dynamics of social activation and suspiciousness in individuals at ultra-high risk for psychosis.

Schizophrenia research·2023
Same author

A benchmarking study of Geant4 for Auger electrons emitted by medical radioisotopes.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2021
Same author

Dynamic Interactive Social Cognition Training in Virtual Reality (DiSCoVR) for People With a Psychotic Disorder: Single-Group Feasibility and Acceptability Study.

JMIR mental health·2020
Same author

Virtual Reality Aggression Prevention Therapy (VRAPT) versus Waiting List Control for Forensic Psychiatric Inpatients: A Multicenter Randomized Controlled Trial.

Journal of clinical medicine·2020

Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Physics

Background:

  • Accurate detection of light elements like hydrogen in thin films is crucial for material analysis.
  • Existing methods may lack specificity or sensitivity for hydrogen in complex samples.
  • Electron microscopy techniques offer potential for high-resolution elemental analysis.

Purpose of the Study:

  • To develop and validate a novel electron beam method for detecting hydrogen in extremely thin samples.
  • To differentiate hydrogen signals from those of heavier elements (carbon, oxygen) in thin films.
  • To investigate the stability of thin films under electron beam irradiation.

Main Methods:

  • Utilizing elastically scattered electrons with 20-30 keV energy.
  • Detecting electrons at a scattering angle near 45 degrees for large momentum transfer.

Related Experiment Videos

  • Analyzing the elastic peak characteristics and comparing hydrogen signals with heavier elements.

    • Main Results:

    • A clear separation of hydrogen signals from heavier elements was achieved using large momentum transfer elastic collisions.
    • The hydrogen elastic peak exhibited a significantly larger width compared to carbon and oxygen peaks.
    • Film thickness reduction and preferential hydrogen depletion were observed under electron radiation.

    Conclusions:

    • The novel electron beam method effectively detects hydrogen in thin films with high specificity.
    • Observed discrepancies in peak ratios suggest coupled electronic excitations during elastic collisions.
    • Understanding film stability under electron irradiation is vital for accurate analysis.