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Tag archive: cavity

Quench

| 4 October 2012 What is a quench? Everything has a limit—superconducting cavities are no exception. Physicists put voltage in their superconducting cavities to boost the energy of particles. But it’s possible to ask for too much from a cavity. When this happens, the cavity fails: the superconducting material becomes normal-conducting, the voltage collapses and the energy escapes. This is called a quench. Category: LCpedia | Tagged: , ,

Cavities at your fingertips

| 30 August 2012 Are you giving a talk about the ILC, cavities, S(C)RF or linac design and are looking for images that haven't been used a million times? A 17-image series following the life of a cavity from niobium ingot to finished cryomodule is now available on the Interactions image bank. Category: Image of the week | Tagged: , ,

Q – cavity quality factor

| 23 August 2012 Physicists need to understand each accelerator cavity individually before assembling a collider. One of the cavity characteristics physicists measure is called the cavity quality factor, Q factor for short. The LCpedia series continues. Category: LCpedia | Tagged: , ,

Cavities in the spotlight

| 7 June 2012 Some 100 cavity and photo enthusiasts came to DESY last Wednesday to hear Karsten Büßer talk about "Cool Runnings" and see the picture story of cavities in the making by science photographer Heiner Müller-Elsner. The exhibition will be on show at DESY for a few more weeks. Read more here. Category: Image of the week | Tagged: , , , ,

The secret life of cavities – not so secret any more

| 24 May 2012 There’s no doubt that the life of a cavity is exciting – lots of power, whizzing particles, superconductivity, the lot. How does it get there, what are the stations of its life? A new photo series is in production that follows a cavity from niobium ingot to cryomodule, and an exhibition of these images opens next week at DESY in Germany. 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: , , , , , , ,

Seeing beneath the surface

| 1 September 2011 Accelerator cavities have their faults, and some pits and cracks hide deep in the walls or in out-of-the-way places where they aren’t easily found. Accelerator researchers help improve flawed cavities by taking their fault-finding missions beneath the cavity surface with X-ray computed tomography. Category: Around the World | Tagged: , ,

Global Design Effort optimises industralisation models

| 26 May 2011 As part of Technical Design Phase 2, the Global Design Effort has been working towards more realistic and cost-effective industrialisation models for the production of superconducting radiofrequency cavities and cryomodules, as these are primary cost drivers in the ILC construction estimate. To that end, they have been organising a series of visit to cavity and material manufacturers and workshops. The next one is in July 2011 in Chicago, US. Category: Director's Corner | Tagged: , , , , ,

A conformal approach to cavity coating

| 28 April 2011 Argonne researchers are working to coat accelerator cavities with perfectly uniform atomic layers of niobium. The thin film technology could help slash production and operation costs in particle accelerator programmes while boosting accelerator performance. Category: Around the World | Tagged: , , , , ,

The sound of accelerator cavities

| 21 April 2011 Elegant and inexpensive, the second-sound detection system developed at Cornell University helps scientists triangulate the location of hard-to-see accelerator cavity flaws. Helium helps. Category: Feature | Tagged: , , , , , , , ,
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