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

Nuclear Transmutation03:20

Nuclear Transmutation

20.1K
Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...
20.1K
Transmission Electron Microscopy01:15

Transmission Electron Microscopy

6.6K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
6.6K
Nuclear Fusion02:45

Nuclear Fusion

33.4K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.4K
Nuclear Stability03:18

Nuclear Stability

22.1K
Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together...
22.1K
Atomic Nuclei: Nuclear Magnetic Moment00:59

Atomic Nuclei: Nuclear Magnetic Moment

2.9K
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
2.9K
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

1.0K
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Correcting the energy-dependent asymmetry in low-energy muon spin rotation.

The Review of scientific instruments·2026
Same author

Gonioscopic findings in 69 Leonberger dogs in Switzerland from 2019 to 2023.

Schweizer Archiv fur Tierheilkunde·2026
Same author

Impact of D3 lymph node dissection on short-term and long-term outcomes in elderly patients with colon cancer.

Techniques in coloproctology·2025
Same author

Design of a microwave spectrometer for high-precision Lamb shift spectroscopy of antihydrogen atoms.

Interactions (Cham, Switzerland)·2024
Same author

Antiproton annihilation at rest in thin solid targets and comparison with Monte Carlo simulations.

The European physical journal. A, Hadrons and nuclei·2024
Same author

Depth-dependent study of time-reversal symmetry-breaking in the kagome superconductor AV<sub>3</sub>Sb<sub>5</sub>.

Nature communications·2024

Related Experiment Video

Updated: Dec 9, 2025

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.2K

Intense beam of metastable Muonium.

G Janka1, B Ohayon1, Z Burkley1

  • 1Institute for Particle Physics and Astrophysics, ETH Zürich, 8093 Zurich, Switzerland.

The European Physical Journal. C, Particles and Fields
|September 14, 2020
PubMed
Summary
This summary is machine-generated.

Researchers created an intense beam of metastable Muonium using a low-energy muon source. This advancement significantly improves the feasibility of precision spectroscopy for Muonium Lamb shift measurements.

More Related Videos

Hyperpolarized Xenon for NMR and MRI Applications
16:20

Hyperpolarized Xenon for NMR and MRI Applications

Published on: September 6, 2012

20.0K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

13.3K

Related Experiment Videos

Last Updated: Dec 9, 2025

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.2K
Hyperpolarized Xenon for NMR and MRI Applications
16:20

Hyperpolarized Xenon for NMR and MRI Applications

Published on: September 6, 2012

20.0K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

13.3K

Area of Science:

  • Atomic Physics
  • Muon Science
  • Quantum Electrodynamics

Background:

  • Precision spectroscopy of Muonium requires a reliable source of 2S Muonium.
  • The beam-foil technique is the established method for producing 2S Muonium beams.
  • Previous experiments were limited by low statistics.

Purpose of the Study:

  • To develop an efficient method for producing metastable Muonium beams.
  • To leverage new low-energy muon sources for enhanced Muonium production.
  • To enable a two-orders-of-magnitude increase in precision for Muonium Lamb shift measurements.

Main Methods:

  • Utilized the beam-foil technique with a low-energy muon beam.
  • Optimized Muonium production by adjusting muon beam energy (7-10 keV).
  • Investigated scattering and beamline transport characteristics.

Main Results:

  • Successfully created an intense, directed beam of metastable Muonium.
  • Identified optimal muon beam energies for efficient 2S Muonium production.
  • Estimated a future event detection rate of several events per second.

Conclusions:

  • The new low-energy muon source enables significant improvements in Muonium spectroscopy.
  • Future Lamb shift measurements can achieve unprecedented precision.
  • This work paves the way for more accurate tests of fundamental physics.