Doe Science news source
The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
  • 2017-10-06 09:05:50
  • Article ID: 682438

PPPL and General Atomics team up to make TRANSP code widely available

  • Credit: Shaun Haskey

    Physicists Orso Meneghini of General Atomics, left, and Brian Grierson of Princeton Plasma Physics Laboratory.

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. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) and General Atomics (GA) have joined forces to bring PPPL’s premier transport code, TRANSP, to beginning users and experts alike.

Using the workflow manager OMFIT developed by GA scientists, the team has created a TRANSP module that streamlines data preparation for TRANSP analysis and couples TRANSP to other widely used software. While TRANSP analysis of international tokamak experiments has been available for more than 30 years, the new interface through OMFIT has produced a new user base, modern visualization and increased productivity.

Expanding the global community

The result has been expansion of a global community. “From a technical point of view, OMFIT is a workflow manager that can couple physics codes, execute them in complex workflows, and provide them with streamlined interfaces,” says Orso Meneghini, a GA physicist. “Perhaps more importantly, OMFIT is a growing community effort, which is gathering the contribution of many physicists across domestic and international institutions, and is supporting the research of over two hundred scientists worldwide.”

In recent years, the number of TRANSP users on DIII-D, the National Fusion Facility that GA operates for the DOE, has expanded from a handful to nearly 40 researchers by the end of 2016. While most are new users, legacy users have also migrated to the OMFIT platform. “What used to be a complex and cumbersome process to generate TRANSP runs that was mastered by only a few has now become available to all users with powerful and intuitive drivers and visualizations,” says physicist Brian Grierson, a PPPL researcher on DIII-D who developed the TRANSP module in OMFIT with PPPL physicists Shaun Haskey and Nikolas Logan.

Logan points out the utility of the module. “Through OMFIT, we have created a community-based platform for developing scientific analysis software, where expert users can develop and oversee critical physics analysis with results available for the wider community,” he says.

Benchmarked on U.S. tokamaks

Researchers have used the new TRANSP interface in OMFIT to study fusion plasmas in three U.S.-based tokamaks: DIII-D; the National Spherical Torus Experiment (NSTX) at PPPL prior to its recent upgrade; and Alcator C-Mod at MIT, which ceased operation at the end of 2016. The interface was benchmarked on the U.S. experiments and is now being used to analyze data gathered from domestic and international tokamaks. 

Multiple scientists presented TRANSP analysis results obtained through OMFIT at the 2016 International Atomic Energy Agency (IAEA) Fusion Energy Conference in Kyoto, Japan. “I used the new OMFIT workflow to efficiently analyze transport in an ITER-like DIII-D discharge with TRANSP,” says Chris Holland of the University of California, San Diego. ITER is an international tokamak under construction in France.

“The TRANSP output and uncertainty analysis was then used as input for massively parallel multiscale GYRO simulations” that model plasma turbulence at the microscopic scale in fusion reactors, Holland said. Results of the simulations, published in the journal Nuclear Fusion in May, matched experiments showing that turbulence caused by electron transport takes place at multiple scales of time and space.

PPPL, on Princeton University's Forrestal Campus in Plainsboro, N.J., is devoted to creating new knowledge about the physics of plasmas — ultra-hot, charged gases — and to developing practical solutions for the creation of fusion energy. The Laboratory is managed by the University for the U.S. Department of Energy’s Office of Science, which is the largest single supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov

X
X
X
  • Filters

  • × Clear Filters

Breakthrough Cuttable, Flexible, Submersible and Ballistic-Tested Lithium-ion Battery Offers New Paradigm of Safety and Performance

Breakthrough Cuttable, Flexible, Submersible and Ballistic-Tested Lithium-ion Battery Offers New Paradigm of Safety and Performance

Chemical Treatment Improves Quantum Dot Lasers

One of the secrets to making tiny laser devices such as opthalmic surgery scalpels work even more efficiently is the use of tiny semiconductor particles, called quantum dots. In new research at Los Alamos National Laboratory's Nanotech Team, the ~nanometer-sized dots are being doctored, or "doped," with additional electrons, a treatment that nudges the dots ever closer to producing the desired laser light with less stimulation and energy loss.

Neutrons Observe Vitamin B6-Dependent Enzyme Activity Useful for Drug Development

Scientists at the Department of Energy's Oak Ridge National Laboratory have performed neutron structural analysis of a vitamin B6-dependent protein, potentially opening avenues for new antibiotics and drugs to battle diseases such as drug-resistant tuberculosis, malaria and diabetes. Specifically, the team used neutron crystallography to study the location of hydrogen atoms in aspartate aminotransferase, or AAT, an enzyme vital to the metabolism of certain amino acids.

Scientists Decode the Origin of Universe's Heavy Elements in the Light From a Neutron Star Merger

On Aug. 17, scientists around the globe were treated to near-simultaneous observations by separate instruments that would ultimately be confirmed as the first measurement of the merger of two neutron stars and its explosive aftermath.

PPPL Takes Detailed Look at 2-D Structure of Turbulence in Tokamaks

Article describes study of cross-correlation of turbulence in tokamaks.

New Method to Detect Spin Current in Quantum Materials Unlocks Potential for Alternative Electronics

A new method that precisely measures the mysterious behavior and magnetic properties of electrons flowing across the surface of quantum materials could open a path to next-generation electronics. A team of scientists has developed an innovative microscopy technique to detect the spin of electrons in topological insulators, a new kind of quantum material that could be used in applications such as spintronics and quantum computing.

Purple Power: Synthetic 'Purple Membranes' Transform Sunlight to Hydrogen Fuel

Argonne researchers have found a new way to produce solar fuels by developing "synthetic purple membranes." These membranes involve an assembly of lipid nanodiscs, man-made proteins, and semiconducting nanoparticles that, when taken together, can transform sunlight into hydrogen fuel.

Sandia Researchers Use Direct Numerical Simulations to Enhance Combustion Efficiency and Reduce Pollution in Diesel Engines

A "cool flame" may sound contradictory, but it's an important element of diesel combustion -- one that, once properly understood, could enable better engine designs with higher efficiency and fewer emissions.

Converting Carbon Dioxide to Carbon Monoxide Using Water, Electricity

Researchers at the University of Illinois at Chicago and the Joint Center for Artificial Photosynthesis have determined how electrocatalysts can convert carbon dioxide to carbon monoxide using water and electricity. The discovery can lead to the development of efficient electrocatalysts for large scale production of synthesis gas -- a mixture of carbon monoxide and hydrogen.

International Team Reconstructs Nanoscale Virus Features from Correlations of Scattered X-rays

Berkeley Lab researchers contributed key algorithms which helped scientists achieve a goal first proposed more than 40 years ago - using angular correlations of X-ray snapshots from non-crystalline molecules to determine the 3D structure of important biological objects.


  • Filters

  • × Clear Filters

LIGO Announces Detection of Gravitational Waves From Colliding Neutron Stars

The U.S.-based Laser Interferometer Gravitational-Wave Observatory and the Virgo detector in Italy announced on Oct. 16 that all three of their detectors had picked up the ripples, or gravitational waves, from two neutron stars that collided 130 million years ago. Among other discoveries, the detection allowed scientists to use gravitational waves to directly calculate the rate at which the universe is expanding.

WVU Energy Conference to Address State's Economic Opportunities

West Virginia University will look at the state's emerging energy economy through industry experts, public policy organizations, environmental groups and academic institutions at the sixth annual National Energy Conference Oct. 20.

Exploring the Exotic World of Quarks and Gluons at the Dawn of the Exascale

As nuclear physicists delve ever deeper into the heart of matter, they require the tools to reveal the next layer of nature's secrets. Nowhere is that more true than in computational nuclear physics. A new research effort led by theorists at DOE's Thomas Jefferson National Accelerator Facility (Jefferson Lab) is now preparing for the next big leap forward in their studies thanks to funding under the 2017 SciDAC Awards for Computational Nuclear Physics.

Matthew Latimer Receives 2017 Lytle Award

A staff member at the Department of Energy's SLAC National Acceleratory Laboratory, Matthew Latimer is in charge of seven spectroscopy beamlines at SSRL. He was recently selected for the 2017 Farrel W. Lytle Award, established by the SSRL Users' Organization Executive Committee. The award promotes accomplishments in synchrotron science and supports collaboration among visiting scientists and staff who conduct research at SSRL.

Jefferson Lab Completes 12 GeV Upgrade

Nuclear physicists are now poised to embark on a new journey of discovery into the fundamental building blocks of the nucleus of the atom. The completion of the 12 GeV Upgrade Project of the Continuous Electron Beam Accelerator Facility (CEBAF) at the Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab) heralds this new era to image nuclei at their deepest level.

Sunderrajan to Lead Science and Technology Partnerships and Outreach Directorate

Suresh Sunderrajan has been named the associate laboratory director (ALD) for the Science and Technology Partnerships and Outreach (STPO) Directorate at the U.S. Department of Energy's Argonne National Laboratory.

Career Awards Advance Research for Jefferson Lab Researchers

Two researchers affiliated with the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility have received 2017 Early Career Research Program awards from the DOE's Office of Science.

U.S. Department of Energy Awards Danforth Center $16M to Enhance Sorghum for Bioenergy

This project aims to deliver stress-tolerant sorghum lines, addressing DOE's mission in the generation of renewable energy resources.

Four Los Alamos Scientists Named as 2017 Laboratory Fellows

Four Los Alamos National Laboratory scientists have been named 2017 Fellows.

Creation of New Financial Product Aims to Solve "Valley of Death" for Promising Energy Technologies

With a DOE grant, two professors will create a new investment tool to manage risk and catalyze funding at critical stages for energy companies


  • Filters

  • × Clear Filters

Discovering the Genetic Timekeepers in Bioenergy Crops

A new class of plant-specific genes required for flowering control in temperate grasses is found.

New Technology Illuminates Microbial Dark Matter

Demonstrating the microfluidic-based, mini-metagenomics approach on samples from hot springs shows how scientists can delve into microbes that can't be cultivated in a laboratory.

Tiny Green Algae Reveal Large Genomic Variation

First complete picture of genetic variations in a natural algal population could help explain how environmental changes affect global carbon cycles.

A Complex Little Alga that Lives by the Sea

The genetic material of Porphyra umbilicalis reveals the mechanisms by which it thrives in the stressful intertidal zone at the edge of the ocean.

Precise Radioactivity Measurements: A Controversy Settled

Simultaneous measurements of x-rays and gamma rays emitted in radioactive nuclear decays show that the vacancy left by an electron's departure, not the atomic structure, influences whether gamma rays are released.

OLYMPUS Experiment Sheds Light on Inner Workings of Protons

Seven-year study explains how packets of light are exchanged when protons meet electrons.

Explorations of the Universal Glue

The newly upgraded CEBAF Accelerator opens door to strong force studies.

Understanding the Rice Genome for Bioenergy Research

Genome-wide rice studies yield first major, large-scale collection of mutations for grass model crops, vital to boosting biofuel production.

Bringing Visual "Magic" to Light

Scientists create widely controllable ultrathin optical components that allow virtual objects to be projected in real environments.

Speeding Materials Discovery Puts Solar Fuels on the Fast Track to Commercial Viability

In just two years, a process that was developed by Molecular Foundry staff and users has nearly doubled the number of materials with the potential for using sunlight to produce fuel.


Spotlight

Tuesday October 03, 2017, 01:05 PM

Stairway to Science

Argonne National Laboratory

Thursday September 28, 2017, 12:05 PM

After-School Energy Rush

Argonne National Laboratory

Thursday September 28, 2017, 10:05 AM

Bringing Diversity Into Computational Science Through Student Outreach

Brookhaven National Laboratory

Thursday September 21, 2017, 03:05 PM

From Science to Finance: SLAC Summer Interns Forge New Paths in STEM

SLAC National Accelerator Laboratory

Thursday September 07, 2017, 02:05 PM

Students Discuss 'Cosmic Opportunities' at 45th Annual SLAC Summer Institute

SLAC National Accelerator Laboratory

Thursday August 31, 2017, 05:05 PM

Binghamton University Opens $70 Million Smart Energy Building

Binghamton University, State University of New York

Wednesday August 23, 2017, 05:05 PM

Widening Horizons for High Schoolers with Code

Argonne National Laboratory

Saturday May 20, 2017, 12:05 PM

Rensselaer Polytechnic Institute Graduates Urged to Embrace Change at 211th Commencement

Rensselaer Polytechnic Institute (RPI)

Monday May 15, 2017, 01:05 PM

ORNL, University of Tennessee Launch New Doctoral Program in Data Science

Oak Ridge National Laboratory

Friday April 07, 2017, 11:05 AM

Champions in Science: Profile of Jonathan Kirzner

Department of Energy, Office of Science

Wednesday April 05, 2017, 12:05 PM

High-Schooler Solves College-Level Security Puzzle From Argonne, Sparks Interest in Career

Argonne National Laboratory

Tuesday March 28, 2017, 12:05 PM

Champions in Science: Profile of Jenica Jacobi

Department of Energy, Office of Science

Friday March 24, 2017, 10:40 AM

Great Neck South High School Wins Regional Science Bowl at Brookhaven Lab

Brookhaven National Laboratory

Wednesday February 15, 2017, 04:05 PM

Middle Schoolers Test Their Knowledge at Science Bowl Competition

Argonne National Laboratory

Friday January 27, 2017, 04:00 PM

Haslam Visits ORNL to Highlight State's Role in Discovering Tennessine

Oak Ridge National Laboratory

Tuesday November 08, 2016, 12:05 PM

Internship Program Helps Foster Development of Future Nuclear Scientists

Oak Ridge National Laboratory

Friday May 13, 2016, 04:05 PM

More Than 12,000 Explore Jefferson Lab During April 30 Open House

Thomas Jefferson National Accelerator Facility

Monday April 25, 2016, 05:05 PM

Giving Back to National Science Bowl

Ames Laboratory

Friday March 25, 2016, 12:05 PM

NMSU Undergrad Tackles 3D Particle Scattering Animations After Receiving JSA Research Assistantship

Thomas Jefferson National Accelerator Facility

Tuesday February 02, 2016, 10:05 AM

Shannon Greco: A Self-Described "STEM Education Zealot"

Princeton Plasma Physics Laboratory

Monday November 16, 2015, 04:05 PM

Rare Earths for Life: An 85th Birthday Visit with Mr. Rare Earth

Ames Laboratory

Tuesday October 20, 2015, 01:05 PM

Meet Robert Palomino: 'Give Everything a Shot!'

Brookhaven National Laboratory

Tuesday April 22, 2014, 11:30 AM

University of Utah Makes Solar Accessible

University of Utah

Wednesday March 06, 2013, 03:40 PM

Student Innovator at Rensselaer Polytechnic Institute Seeks Brighter, Smarter, and More Efficient LEDs

Rensselaer Polytechnic Institute (RPI)

Friday November 16, 2012, 10:00 AM

Texas Tech Energy Commerce Students, Community Light up Tent City

Texas Tech University

Wednesday November 23, 2011, 10:45 AM

Don't Get 'Frosted' Over Heating Your Home This Winter

Temple University

Wednesday July 06, 2011, 06:00 PM

New Research Center To Tackle Critical Challenges Related to Aircraft Design, Wind Energy, Smart Buildings

Rensselaer Polytechnic Institute (RPI)

Friday April 22, 2011, 09:00 AM

First Polymer Solar-Thermal Device Heats Home, Saves Money

Wake Forest University

Friday April 15, 2011, 12:25 PM

Like Superman, American University Will Get Its Energy from the Sun

American University

Thursday February 10, 2011, 05:00 PM

ARRA Grant to Help Fund Seminary Building Green Roof

University of Chicago

Tuesday December 07, 2010, 05:00 PM

UC San Diego Installing 2.8 Megawatt Fuel Cell to Anchor Energy Innovation Park

University of California San Diego

Monday November 01, 2010, 12:50 PM

Rensselaer Smart Lighting Engineering Research Center Announces First Deployment of New Technology on Campus

Rensselaer Polytechnic Institute (RPI)

Friday September 10, 2010, 12:40 PM

Ithaca College Will Host Regional Clean Energy Summit

Ithaca College

Tuesday July 27, 2010, 10:30 AM

Texas Governor Announces $8.4 Million Award to Create Renewable Energy Institute

Texas Tech University

Friday May 07, 2010, 04:20 PM

Creighton University to Offer New Alternative Energy Program

Creighton University

Wednesday May 05, 2010, 09:30 AM

National Engineering Program Seeks Subject Matter Experts in Energy

JETS Junior Engineering Technical Society

Wednesday April 21, 2010, 12:30 PM

Students Using Solar Power To Create Sustainable Solutions for Haiti, Peru

Rensselaer Polytechnic Institute (RPI)

Wednesday March 03, 2010, 07:00 PM

Helping Hydrogen: Student Inventor Tackles Challenge of Hydrogen Storage

Rensselaer Polytechnic Institute (RPI)

Thursday February 04, 2010, 02:00 PM

Turning Exercise into Electricity

Furman University

Thursday November 12, 2009, 12:45 PM

Campus Leaders Showing the Way to a Sustainable, Clean Energy Future

National Wildlife Federation (NWF)

Tuesday November 03, 2009, 04:20 PM

Furman University Receives $2.5 Million DOE Grant for Geothermal Project

Furman University

Thursday September 17, 2009, 02:45 PM

Could Sorghum Become a Significant Alternative Fuel Source?

Salisbury University

Wednesday September 16, 2009, 11:15 AM

Students Navigating the Hudson River With Hydrogen Fuel Cells

Rensselaer Polytechnic Institute (RPI)

Wednesday September 16, 2009, 10:00 AM

College Presidents Flock to D.C., Urge Senate to Pass Clean Energy Bill

National Wildlife Federation (NWF)

Wednesday July 01, 2009, 04:15 PM

Northeastern Announces New Professional Master's in Energy Systems

Northeastern University

Friday October 12, 2007, 09:35 AM

Kansas Rural Schools To Receive Wind Turbines

Kansas State University

Thursday August 17, 2006, 05:30 PM

High Gas Prices Here to Stay, Says Engineering Professor

Rowan University





Showing results

0-4 Of 2215