Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

’Cold linac’ commissioning major step for ORNL’s Spallation Neutron Source

22.08.2005


The "cold linac" is one of the Spallation Neutron Source’s most innovative and technically complex systems.


The Spallation Neutron Source at the Department of Energy’s Oak Ridge National Laboratory has met a crucial milestone on its way to completion in June 2006 -- operation of the superconducting section of its linear accelerator.

The SNS linac has two sections: a room-temperature, or warm, section, which completed its commissioning last January, and a superconducting, or cold, section, which operates at temperatures hundreds of degrees below zero. The cold linac provides the bulk of the power that drives the linac, and has already achieved an energy level of 865 MeV, which is about 75 percent of the speed of light. The SNS linac is the world’s first high energy, high power linac to apply superconducting technology to the acceleration of protons. "The successful operation of the cold linac is a major step toward the 2006 completion of the SNS and demonstrates the success of the collaboration of national labs in keeping the project on time, on budget and on scope. It represents, technically, one of the most complex systems of the SNS facility," said Thom Mason, ORNL’s Associate Director for the SNS. "This successful test is just another indicator of the outstanding team of men and women that ORNL has brought together to build and operate the SNS facility. They can be justifiably proud of this accomplishment," said Les Price, DOE’s project director for the SNS. The Thomas Jefferson National Accelerator Facility in Virginia, part of the team of six DOE national laboratories collaborating on the DOE Office of Science project, was responsible for the superconducting linac and its refrigeration system. Los Alamos National Laboratory in New Mexico provided the radio-frequency systems that drive the linac. The other DOE national laboratories supporting ORNL in the SNS collaboration are Argonne, Lawrence Berkeley, and Brookhaven. "Jefferson Lab congratulates the Oak Ridge SNS team on this major milestone," said Claus Rode, SNS project manager for Jefferson Lab. "The SNS project was a challenging five-year effort that used all of Jefferson Lab’s expertise in superconducting radiofrequency technology."

SNS will produce neutrons by accelerating a pulsed beam of high-energy protons down the 1,000-foot linac, compressing each pulse to high intensity, and delivering them to a liquid mercury target where neutrons are produced in a process called "spallation."



SNS will increase the intensity of pulsed neutrons available to researchers nearly tenfold, providing higher quality images molecular structures and motion. Together, ORNL’s High Flux Isotope Reactor and SNS will represent the world’s foremost facilities for neutron scattering, a technique pioneered at ORNL shortly after World War II.

When completed next year, SNS will become the world’s leading research facility for study of the structure and dynamics of materials using neutrons. It will operate as a user facility that will enable researchers from the United States and abroad to study the science of materials that forms the basis for new technologies in telecommunications, manufacturing, transportation, information technology, biotechnology and health.

Oak Ridge National Laboratory is a multiprogram laboratory managed for the Department of Energy by UT-Battelle.

Bill Cabage | EurekAlert!
Further information:
http://www.ornl.gov

More articles from Physics and Astronomy:

nachricht Physics boosts artificial intelligence methods
19.10.2017 | California Institute of Technology

nachricht NASA team finds noxious ice cloud on saturn's moon titan
19.10.2017 | NASA/Goddard Space Flight Center

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Electrode materials from the microwave oven

19.10.2017 | Materials Sciences

New material for digital memories of the future

19.10.2017 | Materials Sciences

Physics boosts artificial intelligence methods

19.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>