ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
Mar 2026
Jan 2026
Latest Journal Issues
Nuclear Science and Engineering
April 2026
Nuclear Technology
February 2026
Fusion Science and Technology
Latest News
Going Nuclear: Notes from the officially unofficial book tour
I work in the analytical labs at one of Europe’s oldest and largest nuclear sites: Sellafield, in northwestern England. I spend my days at the fume hood front, pipette in one hand and radiation probe in the other (and dosimeter pinned to my chest, of course). Outside the lab, I have a second job: I moonlight as a writer and public speaker. My new popular science book—Going Nuclear: How the Atom Will Save the World—came out last summer, and it feels like my life has been running at full power ever since.
T. Okita, K. Asari, S. Fujita, M. Itakura
Fusion Science and Technology | Volume 66 | Number 1 | July-August 2014 | Pages 289-294
Technical Paper | doi.org/10.13182/FST13-756
Articles are hosted by Taylor and Francis Online.
Molecular dynamics simulations were conducted using six interatomic potentials for face-centered cubic metals that differed only in the stacking fault energies (SFEs). We investigated the effects of the SFE on interactions between an edge dislocation and a void of 4.0 nm diameter at 13 intersection positions. In the high SFE, most interaction morphologies at the depinning are such that the two partial dislocations reverse into the perfect dislocation locally at the void interface. In contrast, in the low SFE, the partial dislocations are depinned individually from the void with some certain time lag. The critical resolved shear stress (CRSS) is not symmetrical about the center of the void. CRSS is higher when the center of the void is located not on the glide plane, but in the compressive side of the edge dislocation. In some cases for these conditions, climb motion is observed, which further increases CRSS. The probability of climb motion occurrence is higher with higher SFE. In lower SFE, climb motion occurs temporarily, followed by the disappearance of jog by dislocation releasing several vacancies inside of the void. CRSS is higher with higher SFE for all the intersection positions.