Newsline

Tag archive: superconducting cavity

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: , , , , , , ,

The capability for producing niobium sheets

| 26 January 2012 Japanese company Tokyo Denkai is boosting high-purity niobium production and processing with some new equipment and a better-outfitted shop. Should the ILC be built, the company will be able to handle the large order of niobium needed for accelerator cavities. Category: Around the World | Tagged: , , , , ,

Injector cryomodule for the Quantum Beam experiment

17 November 2011 At the Superconducting Test Facility (STF) at KEK, Japan, the construction of the injector cryomodule equipped with two ILC-type nine-cell cavities has begun for the Quantum Beam experiment. The cavity string has been brought out of the clean room, ready for tuner installation. The gas return pipe is being readied to be placed in the cold-mass assembly framework. Category: Image of the week | Tagged: , , ,
Page 1 of 3123