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 Fission02:50

Nuclear Fission

Many heavier elements with smaller binding energies per nucleon can decompose into more stable elements that have intermediate mass numbers and larger binding energies per nucleon—that is, mass numbers and binding energies per nucleon that are closer to the “peak” of the binding energy graph near 56. Sometimes neutrons are also produced. This decomposition of a large nucleus into smaller pieces is called fission. The breaking is rather random with the formation of a large number of different...
Nuclear Stability03:18

Nuclear Stability

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 in the...
Nuclear Overhauser Enhancement (NOE)01:06

Nuclear Overhauser Enhancement (NOE)

Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...
Radioactivity and Nuclear Equations03:18

Radioactivity and Nuclear Equations

Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The nucleus of an atom is composed of protons and, except for hydrogen, neutrons. The number of protons in the nucleus is called the atomic number (Z) of the element, and the sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are isotopes of the same element.
A nuclide of an element has a specific number of protons and...
Mass Spectrometry: Molecular Fragmentation Overview01:20

Mass Spectrometry: Molecular Fragmentation Overview

The ionization of a molecule into a molecular ion inside the mass spectrometer causes instability in the molecule's structure due to the loss of an electron. This eventually leads to the fragmentation or breaking of some bonds in the molecule. The fragmentation occurs predominantly at specific bonds to yield relatively stable fragments.
One type of fragmentation pattern is the cleavage of a single bond in the molecular ion. The cleavage leads to a radical and a cation. The cleavage can occur at...
Nuclear Binding Energy02:13

Nuclear Binding Energy

The difference between the calculated and experimentally measured masses is known as the mass defect of the atom. In the case of helium-4, the mass defect indicates a “loss” in mass of 4.0331 amu – 4.0026 amu = 0.0305 amu. The loss in mass accompanying the formation of an atom from protons, neutrons, and electrons is due to the conversion of that mass into energy that is evolved as the atom forms. The nuclear binding energy is the energy produced when the atoms’ nucleons are bound together;...

You might also read

Related Articles

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

Sort by
Same author

Probing nuclear interactions à la Rutherford: insights on <sup>4</sup>He from α scattering.

Nature communications·2026
Same author

Dipole Strength Distribution of ^{8}He and Decay Characteristics.

Physical review letters·2026
Same author

Assessment of Triglyceride/High-Density Lipoprotein Cholesterol Ratio and Triglyceride-Glucose Index Threshold in Patients with Chronic Kidney Disease: Evaluation of Clinical Features and Outcomes.

High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension·2025
Same author

Study of the Beta Spectrum Shape of ^{92}Rb and ^{142}Cs Decays for the Prediction of Reactor Antineutrino Spectra.

Physical review letters·2025
Same author

The latest updates on the proper use of fluoroquinolones - Actualisation 2025 update by the SPILF and the GPIP.

Infectious diseases now·2025
Same author

Nuclear Astrophysics in the Storage Ring: Background Suppressed Simultaneous Measurement of (p,γ) and (p,n) Reactions.

Physical review letters·2025

Related Experiment Video

Updated: Jun 5, 2026

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

New scalings in nuclear fragmentation.

E Bonnet1, B Borderie, N Le Neindre

  • 1GANIL (DSM-CEA/CNRS/IN2P3), F-14076 Caen cedex, France.

Physical Review Letters
|January 15, 2011
PubMed
Summary

Radial collective expansion in hot nuclei influences fragment production. The study reveals that collective energy and reduced multiplicity dictate fragment properties, impacting nuclear fragmentation research.

More Related Videos

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

Related Experiment Videos

Last Updated: Jun 5, 2026

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

Area of Science:

  • Nuclear Physics
  • High-Energy Physics

Background:

  • Hot nuclei undergo radial collective expansion at excitation energies of 4-10 MeV per nucleon.
  • Understanding fragment partitions is crucial for nuclear reaction dynamics.

Purpose of the Study:

  • To compare fragment partitions of hot nuclei from central and semiperipheral collisions.
  • To investigate the role of radial collective energy and reduced multiplicity in nuclear fragmentation.

Main Methods:

  • Analysis of fragment partitions from hot nuclei.
  • Comparison of collision data in the 4-10 MeV/nucleon excitation energy range.
  • Examination of scaling properties based on reduced multiplicity.

Main Results:

  • Mean fragment multiplicity is determined by radial collective energy at a fixed excitation energy per nucleon.
  • Fragment partition properties are dictated by reduced fragment multiplicity at a given excitation energy per nucleon.
  • Freeze-out volumes appear to influence observed scaling behaviors.

Conclusions:

  • Radial collective expansion significantly impacts fragment multiplicity and properties in hot nuclei.
  • Reduced multiplicity serves as a key parameter for characterizing fragment partitions.
  • Further investigation into freeze-out volumes is warranted to understand scaling in nuclear fragmentation.