Physicists at the U.S.
For more than 30 years, the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has brightened up cold winter Saturday mornings with eclectic and engaging talks on a wide spectrum of science topics by experts in the field. That tradition continues on Saturday, Jan.
Before scientists can effectively capture and deploy fusion energy, they must learn to predict major disruptions that can halt fusion reactions and damage the walls of doughnut-shaped fusion devices called tokamaks.
Stewart Prager, physicist and long-time fusion energy scientist who was director of the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) from 2009 to 2016, has been honored with a 2017 Distinguished Career Award from Fusion Power Associates (FPA).
More than 210 million core hours on two of the most powerful supercomputers in the nation have been won by two teams led by researchers at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL).
Is there life beyond Earth in the cosmos? Astronomers looking for signs have found that our Milky Way galaxy teems with exoplanets, some with conditions that could be right for extraterrestrial life.
Scientists from the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have built and delivered a high-resolution X-ray spectrometer for the largest and most powerful laser facility in the world.
David A. Gates, principal research physicist and Stellarator Physics Division Head at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL), has been named editor-in-chief of Plasma, an online open access journal for plasma physics.
A breakthrough in the development of fusion diagnostics and the creative use of radio frequency waves to heat the plasma that fuels fusion reactions earned the 2017 outstanding research and engineering awards from the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL).
Lasers that generate plasma can provide insight into bursts of subatomic particles that occur in deep space, scientists have found.
A major challenge facing the development of fusion energy is maintaining the ultra-hot plasma that fuels fusion reactions in a steady state, or sustainable, using superconducting magnetic coils to avoid the tremendous power requirement of copper coils. While superconductors can allow a fusion re
Three scientists from the U.S.
To fuse hydrogen atoms into helium, doughnut-shaped devices called tokamaks must maintain the heat of the ultrahot plasma they control.
Researchers led by the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have proposed an innovative design to improve the ability of future fusion power plants to generate safe, clean and abundant energy in a steady state, or constant, manner.
The arrival of six truckloads of electrical supplies at a warehouse for the international ITER fusion experiment on Oct. 2 brings to a successful conclusion a massive project that will provide 120 megawatts of power – enough to light up a small city − to the 445-acre ITER site in France.
A key hurdle for fusion researchers is understanding turbulence, the ripples and eddies that can cause the superhot plasma that fuels fusion reactions to leak heat and particles and keep fusion from taking place.
Plasma transport analysis, the study of how plasma particles, heat and momentum drift across magnetic field lines, is a necessary first step for understanding how well fusion reactors are performing. Teams of scientists from the U.S.
A major issue facing ITER, the international tokamak under construction in France that will be the first magnetic fusion device to produce net energy, is whether the crucial divertor plates that will exhaust waste heat from the device can withstand the high heat flux, or load, that will str
Physicist Francesca Poli of the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) has been appointed an ITER Scientist Fellow.
A key issue for next-generation fusion reactors is the possible impact of many unstable Alfvén eigenmodes, wave-like disturbances produced by the fusion reactions that ripple through the plasma in doughnut-shaped fusion facilities called “tokamaks.” Deuterium and tritium fuel react when heated to
Rich Hawryluk has been appointed interim director of the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) while an international search for a permanent director moves forward, Princeton University Vice President for PPPL David McComas announced recently.
Jonathan Ng, a Princeton University graduate student at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL), has for the first time applied a fluid simulation to the space plasma process behind solar flares northern lights and space storms.
The International Atomic Energy Agency (IAEA) held the 15th IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems from 5 to 8 September 2017 in Princeton, NJ, USA at PPPL. PPPL physicist Mario Podestà chaired the event.
Physicists from the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) are providing critical expertise for the first full campaign of the world’s largest and most powerful stellarator, a magnetic confinement fusion experiment, the Wendelstein 7-X (W7-X) in Germany.
For Dhruvit Patel, a rising senior majoring in mechanical engineering and physics at Rutgers University, the 10 weeks he spent at the Princeton Plasma Physics Laboratory (PPPL) were a welcome opportunity to do hands-on research.
Physicist Fatima Ebrahimi at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has for the first time used advanced models to accurately simulate key characteristics of the cyclic behavior of edge-localized modes (ELMs), a particular type of plasma instability.
Scientists have discovered a remarkably simple way to suppress a common instability that can halt fusion reactions and damage the walls of reactors built to create a “star in a jar.” The findings, published in June in the journal Physical Review Letters, stem from experiments perfo
Fusion power, which lights the sun and stars, requires temperatures of millions of degrees to fuse the particles inside plasma, a soup of charged gas that fuels fusion reactions.
At the U.S.
A computer code used by physicists around the world to analyze and predict tokamak experiments can now approximate the behavior of highly energetic atomic nuclei, or ions, in fusion plasmas more accurately than ever. The new capability, developed by physicist Mario Podestà at the U.S.
Alexandra LeViness, a former Science Undergraduate Laboratory Internship (SULI) student who will join Princeton University’s graduate program in plasma physics in 2018, has won a prestigious Fulbright Fellowship to do research at the Wendelstein 7-X stellarator at the Max Planck Institute for Pla
The U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has been recognized by the U.S. Environmental Protection Agency (EPA) for its waste management program, which saved more than $250,000 by diverting 3,766 tons of waste from landfills.
Turbulence, the violently unruly disturbance of plasma, can prevent plasma from growing hot enough to fuel fusion reactions. Long a puzzling concern of researchers has been the impact on turbulence of atoms recycled from the walls of tokamaks that confine the plasma.
Throughout the universe, supersonic shock waves propel cosmic rays and supernova particles to velocities near the speed of light. The most high-energy of these astrophysical shocks occur too far outside the solar system to be studied in detail and have long puzzled astrophysicists.
Machine learning, which lets researchers determine if two processes are causally linked without revealing how, could help stabilize the plasma within doughnut-shaped fusion devices known as tokamaks.
Predhiman Kaw, an internationally-known plasma physicist who is considered the father of India’s nuclear fusion program, was remembered fondly by his colleagues at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL) last week after they learned of Kaw’s June 19 death.
Two major issues confronting magnetic-confinement fusion energy are enabling the walls of devices that house fusion reactions to survive bombardment by energetic particles, and improving confinement of the plasma required for the reactions. At the U.S.
A nationwide team of researchers led by physicist C.S. Chang of the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has won the use of 269.9 million supercomputer hours to complete an extreme-scale study of the complex edge region of fusion plasmas.
For fusion to generate substantial energy, the ultra-hot plasma that fuels fusion reactions must remain stable and kept from cooling.
Lithium compounds improve plasma performance in fusion devices just as well as pure lithium does, a team of physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has found.
Physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have simulated the spontaneous transition of turbulence at the edge of a fusion plasma to the high-confinement mode (H-mode) that sustains fusion reactions.
Physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have helped develop a new computer model of plasma stability in doughnut-shaped fusion machines known as tokamaks.
Everyone knows that the game of billiards involves balls careening off the sides of a pool table — but few people may know that the same principle applies to fusion reactions.
Researchers at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) and General Atomics have simulated a mysterious self-organized flow of the superhot plasma that fuels fusion reactions.
Magnetic reconnection, a universal process that triggers solar flares and northern lights and can disrupt cell phone service and fusion experiments, occurs much faster than theory says that it should. Now researchers at the U.S.
NASA aerospace engineer Aprille Ericsson told more than 600 seventh- to tenth-grade girls at the Princeton Plasma Physics Laboratory’s Young Women’s Conference that she was depending on them to pursue their dreams and make their ideas a reality in the wide-open field of Science, Technology, Engin
Like a potter shaping clay as it spins on a wheel, physicists use magnetic fields and powerful particle beams to control and shape the plasma as it twists and turns through a fusion device.
More than 35 students from Orange in the north and Moorestown in the south came to the U.S.
Two Princeton-area teams will travel to Washington, D.C., to compete in the National Science Bowl® finals after winning the regional middle school and high school competitions at the U.S.
Matthew Kunz, a physicist at the Princeton Plasma Physics Laboratory and an assistant professor of astrophysical sciences at Princeton University, has been named a 2017 Sloan Research Fellow. The two-year, $60,000 fellowship from the Alfred P.
Teams of middle school and high school students from as far away as Delaware and New York will come to the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) Feb. 24 to Feb.
U.S. Department of Energy (DOE) high-performance computer sites have selected a dynamic fusion code, led by physicist C.S. Chang of the DOE’s Princeton Plasma Physics Laboratory (PPPL), for optimization on three powerful new supercomputers.
Cancer research should focus on the “fundamentals of the origins” of mutating and rapidly reproducing cancer cells that make the disease so difficult to treat. So said Princeton University physicist Robert Austin at the Jan. 28 Ronald E. Hatcher Science on Saturday lecture series at the U.S.
Valeria Riccardo, new head of engineering at the Princeton Plasma Physics Laboratory, is a United Kingdom transplant who comes to the position with more than 20 years of experience in project management, fusion design, and analysis on two fusion devices in the U.K. that are similar to the U.S.
Physicist Igor Kaganovich at the Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) and collaborators have uncovered some of the physics that make possible the etching of silicon computer chips, which power cell phones, computers, and a huge range of electronic devices.
Physicist Fatima Ebrahimi at the U.S.
Meg Urry was the first tenured woman professor in the Physics Department at Yale University and was often the only woman in her physics classes, including her graduate class at MIT, but she still heard a fellow student complain that women were unfairly given advantages over their male colleagues.
Physicists at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) have for the first time directly observed a phenomenon that had previously only been hypothesized to exist.
The past year saw many firsts in experimental and theoretical research at the U.S. Department of Energy’s Princeton Plasma Physics Laboratory (PPPL).
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