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Tag archive: superconducting cavity

SCRF R&D for ILC upgrade – tin for the future?

| 3 July 2014 Cornell is working on a technology that could make superconducting cavities even more efficient: niobium alloyed with tin. Currently in single-cell research stage, tests show promising results, especially for the quality factor Q. Cornell university has always been a big player in the development of superconducting radio frequency technology SCRF, the technology chosen for the ILC. Even though research into Nb3Sn-cavities is not advanced enough to replace conventional cavities just yet, it might play a big role in future upgrades of the ILC – and in many other accelerators for all kinds of purposes the nearer future. Category: Around the World | Tagged: , , , ,

From Fermilab Today: Anna Grassellino receives $2.5 million DOE award for research on SRF cavities

5 June 2014 Thanks to science, we get more for less. We get more features on a newer car model, more data and information stored on a computer, and all for the same or lowered cost. That same principle applies to accelerator R&D, where improving the performance and lowering the cost can help open doors to new ideas. The Department of Energy recently named Fermilab physicist and 2013 Peoples Fellow Anna Grassellino as a recipient of the prestigious Early Career Research Award for her work to develop particle accelerator cavities that have improved performance and are less expensive to operate. Category: Around the World | Tagged: , , ,

From DESY inForm: Accelerator – stonewashed

| 20 March 2014 Usually it’s basic research – especially for particle accelerators – that pioneers new technology. But in this case the researchers obviously had a little inspirational snoop at Levi’s or any other jeans manufacturer’s. Recently, DESY’s superconducting TESLA cavities have started to be surface-treated with a stonewashing equipment – accelerators stonewashed, so to say. Category: Around the World | Tagged: , , , ,

Accelerating News: Synergies for testing Superconducting RF (SRF) cavities

19 December 2013 CRISP, the "Cluster of Research Infrastructures for Synergies in Physics" is a European-funded project and one of its objectives is to upgrade and harmonise the SRF Accelerator Structures for ESS, ILC, LHC upgrade and the European XFEL. The activity supports an optimised surface treatment, the application of advanced test and preparation infrastructure as well as state-of-the-art diagnostics tools. Significant focus is laid on the knowledge transfer between ESS, CERN and DESY. Read more in Accelerating News Winter 2013 issue Category: Around the World | Tagged: , , , , ,

From DESY inForm: Under one roof

| 19 December 2013 One-stop (work)shopping for high-gradient cavities: in a new lab at DESY in Hamburg all inspection and treatment processes for cavities come together under one roof to make treatment faster and more reliable and prepare for serial production. Category: Around the World | Tagged: , ,

‘A little dirt never hurt’

| 21 November 2013 After years of pursuing purity in the niobium material used to make superconducting radiofrequency cavities, a Fermilab team led by Anna Grassellino has found that baking cavities to introduce certain impurities may improve the cavity performance. The new method may provide a way for ILC-type cavities to reach up to three times higher quality factors—enabling more cost-effective accelerators. Category: Around the World | Tagged: , , , , , , ,

Hydrides: the nemesis of high-quality SRF cavities?

| 25 July 2013 Hydrogen has long been known as a possible enemy of superconducting radiofrequency (SRF) cavities - like those needed for the ILC - thanks to its potential to form non-superconducting hydrides that limit cavity quality factor (Q) and gradient. Researchers at Fermilab have made further progress in understanding the full physics behind hydrogen involvement, which is an important step towards improvements in cavity processing. Category: Around the World | Tagged: , , , , , ,

Major goal achieved for high-gradient ILC SCRF cavities

| 21 November 2012 One of the most important goals of the Global Design Effort has been to demonstrate that high-gradient cavities can be reliably produced in industry. We established two gradient goals: to produce cavities qualified at 35 Megavolts per metre (MV/m) in vertical tests and to demonstrate that an average gradient of 31.5 MV/m is achievable for ILC cryomodules. Furthermore, we set a goal of producing these high-gradient cavities in industry with 50% yield by 2010 and 90% yield by the end of 2012. We have recently achieved these ambitious goals! Category: Director's Corner | Tagged: , , ,

From Fermilab Today: Fermilab’s new cavity temperature mapping system commissioned

| 26 July 2012 Fermilab scientists have a new diagnostic tool that could lead to far more efficient accelerator cavities. The temperature mapping system, fitted with 576 sensors, reads the temperature of every square centimetre of cavity surface and might thus help scientists get to the bottom of the problem of why superconducting cavities dissipate much more energy than theory predicts. Category: Around the World | Tagged: , , , ,

A cavity made in KEK’s Cavity Fabrication Facility

| 22 March 2012 KEK's recently established Cavity Fabrication Facility is a one-stop shopping facility for fabricating superconducting radiofrequency cavities. The fully equipped facility provides a unique and valuable opportunity: a full sequence of R&D for cavity fabrication on one laboratory’s premises. Category: Around the World | Tagged: , , , , , , ,
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