Siberian biophysicists have conducted a research concerning a biological effect of low-dose gamma radiation. The results have been published in the Journal of Environmental Radioactivity, one of the leading scientific journals in the world among those dedicated to the issues of environmental radioactivity.
A team of physicists has discovered that a coating of lithium oxide on the inside of fusion machines known as tokamaks absorbs as much deuterium as pure lithium does.
In a recent experiment performed at the Radioactive Isotope Beam Factory at RIKEN, an international collaboration with scientists from eleven countries, led by scientists of the Instituto de Estructura de la Materia, CSIC (Spain) and the RIKEN Nishina Center (Japan), made a very surprising observation: High-energy gamma rays -- which are mediated by the electromagnetic force -- are emitted in the decay of a certain excited nucleus -- tin 133, in competition with neutron emission, the decay mode mediated by the strong nuclear force.
PPPL physicists have simulated the spontaneous transition of turbulence at the edge of a fusion plasma to the high-confinement mode that sustains fusion reactions. The research was achieved with the extreme-scale plasma turbulence code XGC developed at PPPL in collaboration with a nationwide team.
At very high energies, the collision of massive atomic nuclei in an accelerator generates hundreds or even thousands of particles that undergo numerous interactions. At the Institute of Nuclear Physics of the Polish Academy of Sciences in Cracow, Poland it has been shown that the course of this complex process can be represented by a surprisingly simple model: extremely hot matter moves away from the impact point, stretching along the original flight path in streaks.
PPPL physicists have helped develop a new computer model of plasma stability in doughnut-shaped fusion machines known as tokamaks. The new model incorporates recent findings gathered from related research efforts and simplifies the physics involved so computers can process the program more quickly. The model could help scientists predict when a plasma might become unstable and then avoid the underlying conditions.
Anomalies occur at sub-atomic scale, as nuclei collide and scatter off into each other -- an approach used to explore the properties of atomic nuclei. The most basic kind is called 'elastic scattering,' in which interacting particles emerge in the same state after they collide. Raymond Mackintosh from Open University, contends in a paper published in EPJ A that a new approach to analyzing such data harbors potential new interpretations of fundamental information about atomic nuclei.
Einstein's theory of gravity predicts that a rotating body, such as Earth, partially drags inertial frames along with its rotation. In a study recently published in EPJ Plus, scientists suggest a novel approach to measuring what is referred to as frame dragging. Angela Di Virgilio of the National Institute of Nuclear Physics, INFN, in Pisa, Italy, and colleagues propose using the most sensitive type of inertial sensors, to measure the absolute rotation rate of Earth.
Researchers at Aalto University have invented a quantum-circuit refrigerator, which can reduce errors in quantum computing. This is a new twist towards a functioning quantum computer.
The first experimental result has been published from the newly upgraded Continuous Electron Beam Accelerator Facility at the US Department of Energy's Jefferson Lab. The result demonstrates the feasibility of the experiment that is designed to study quark confinement: why no quark has ever been found alone.