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Tag archive: SRF technology

‘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: , , , , , ,

Triple milestone for Cornell’s ERL programme

| 29 March 2012 Researchers at Cornell University's Energy Recovery Linac programme recently achieved three milestones in two months. One of them could lead to more reliable superconducting accelerator cavities. Category: Around the World | Tagged: , , , , , , , ,

ILC technology in the Guinness Book of World Records!

2 February 2012 The world’s fastest (and shortest) movie has superconducting radiofrequency technology to thank for its entry into the Guinness Book of World Records. Shot at DESY’s FLASH X-ray laser, which accelerates electrons in much the same way as the ILC will, it shows a micro model of the German Brandenburg Gate at an interval of a mere 50 femtoseconds between two frames. Read DESY's press release Category: Image of the week | 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: , , , , ,

Advancing superconducting accelerating technology

| 5 January 2012 Last month, the biannual TESLA Technology Collaboration, hosted by the Institute of High Energy Physics, Chinese Academy of Sciences together with Peking University and Tsinghua University, was held at IHEP in Beijing. Category: Feature | Tagged: ,

From CERN Courier: Advances in acceleration: the superconducting way

10 November 2011 The most ambitious future application under study is for the International Linear Collider (ILC), a 500 GeV superconducting linear accelerator. It will require 16 km of superconducting cavities operating at gradients of 31.5 MV/m. Intense research is underway to reach a high yield for high gradients: 30–40 MV/m. New vendors for niobium, for cavities and for associated components are being developed around the world. Category: Feature | Tagged: ,

New start, new hope

| 6 January 2011 From 7 to 8 December 2010, the IHEP-KEK 1.3-gigahertz superconducting radiofrequency (SRF) technology collaboration meeting was held at the Institute of High Energy Physics (IHEP), Chinese Academy of Sciences in Beijing. This was the third in a series of meetings held regularly since 2009. Eight high-energy accelerator experts from KEK and Kyoto University and nearly thirty researchers from IHEP participated. Category: Around the World | Tagged: , , , ,

From Fermilab Today: Introducing the ICPA: The right tool for the right job

24 November 2010 Developing and improving superconducting radio-frequency technology is an important goal for Fermilab. SRF technology allows us to conceive and plan for future accelerators, such as Project X, the ILC or the Muon Collider, or for energy production applications such as Accelerator Driven Systems. One thing that will help this goal is a new facility that we will start up next year in the Technical Division, named the Integrated Cavity Processing Apparatus. Category: Around the World | Tagged: , , ,

From Fermilab Today: Fine-tuning the instruments of acceleration

| 26 August 2010 Achieving resonance in a scientific collaboration is no small feat, but scientists at Fermilab, DESY and KEK have come together to do exactly that: They've improved the mechanism that keeps superconducting radio frequency cavities in tune.Members of Fermilab's Technical Division and DESY staff, with financial assistance from KEK, recently built four new tuning machines that set SRF cavities to the correct frequency and alignment. More highly automated than their predecessors, the machines save time and labor and ensure greater consistency in RF cavity quality. They work by squeezing or stretching individual cells in a nine-cell cavity and allowing all of them to perform identically and impart the same acceleration to the beam. Category: Around the World | Tagged: , , , , ,
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