Related Experiment Video
Updated: Jul 18, 2026

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
Entry distribution, fission barrier, and formation mechanism of 254102No
1Argonne National Laboratory, Argonne, Illinois 60439 and Ludwig-Maximilians-Universitat, Am Coulombwall 1, D-85748 Garching, Germany.
Abstract:
The entry distribution in angular momentum and excitation energy for the formation of 254No has been measured after the 208Pb(48Ca,2n) reaction at 215 and 219 MeV. This nucleus is populated up to spin 22Planck's over 2pi and excitation energy greater, similar6 MeV above the yrast line, with the half-maximum points of the energy distributions at approximately 5 MeV for spins between 12Planck's over 2pi and 22Planck's over 2pi. This suggests that the fission barrier is greater, similar5 MeV and that the shell-correction energy persists to high spin.
Related Concept Videos
Nuclear Stability
To hold positively charged protons together in the...
Nuclear Binding Energy
Nuclear Fission
Nuclear Fusion
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...
Nuclear Transmutation
Nuclear Overhauser Enhancement (NOE)

