NewsLine

Seamless cavity performance

Laboratories in the US begin to take a serious look at hydroforming as a method for creating ILC-type cavities.

| 7 April 2011

Researchers in the US may soon be pumping their cavities into shape. Last year Fermilab scientists put out a call to industrial companies to propose a procedure for hydroforming ILC-type cavities. They hope that by next year, the selected company will provide Fermilab with three hydroformed nine-cell cavities for testing. “Hydroforming’s a good idea whose […]

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 […]

Superconducting RF cavity industrialisation

| 17 June 2010

Director’s Corner 17 June 2010 Barry Barish Superconducting RF cavity industrialisation Producing high gradient superconducting radiofrequency (SCRF) cavities that meet our demanding performance goals, are affordable and can be produced by industry represents one of the largest challenges on the way to making a solid project proposal for the ILC. The present 500-GeV ILC design […]

Beauty lies within

| 11 December 2008

The inner surfaces of the niobium cavities for the International Linear Collider have to be polished to literally sparkle, since the smallest defects, such as bumps, pits, welding flaws or human-induced scratches on them are considered to be dominantly responsible for the deterioration of the cavity performance and can even lead to quenches and field […]

From Fermilab Today: Fermilab reaches milestone with successful cavity test

| 24 April 2008

A successful test of a dressed 3.9 GHz superconducting radiofrequency cavity last week put Fermilab among an elite group that can produce cutting-edge, high-powered accelerator components. Fermilab employees need to test three more cavities before they can assemble a cryomodule for shipment to DESY for use in the laboratory’s free-electron laser accelerator. The collaboration with […]

Looking inside

| 21 February 2008

At the ILC, roughly 16,000 superconducting RF cavities made of pure niobium will accelerate electrons and positrons to the high energy of 500 GeV. Each one-metre-long cavity consists of nine cells, polished to provide micrometre-level surface smoothness and absolutely no impurities. The inside of the cavities need to literally sparkle since any surface blemishes or […]

From DESY inForm: An idea takes shape: New production technique in view for niobium cavities

| 3 May 2007

In the development of superconducting cavities for the ILC, the machine planning group (MPL) lands another success. New prototypes manufactured from a so-called niobium single crystal plate yield excellent results. The advantage of single-crystal cavities compared with standard ones made of polycrystalline niobium lies in the atomic structure of the crystal lattice. Single crystal with […]

From Jefferson Lab News: Jefferson Lab Cooks Up the Perfect Cavity

| 22 March 2007

While it’s said that opposites attract, particle physicists are taking no chances. In hopes of learning what the universe is made of, they’re preparing to build a machine that will accelerate and smash together electrons and their opposites, positrons, 14,000 times every second. Like Jefferson Lab’s Continuous Electron Beam Accelerator Facility (CEBAF), the proposed new […]

Fermilab Cools First TESLA Cavity from DESY

| 16 February 2006

On Monday, 6 February, a team of cryogenic engineers and accelerator physicists at Fermilab successfully cooled the first TESLA 9-cell 1.3 GHz cavity to 4.5 K (Kelvin) in the ILC Test Area in the Meson Detector Building (ILCTA-MDB). Travelling to Hamburg, Germany, Fermilab personnel assisted DESY in preparing the “ILC-like” cavity, called Capture Cavity II […]

Four TESLA Cavities Delivered to Fermilab ILC cavity

| 20 October 2005

Four unprocessed TESLA cavities recently arrived at Fermilab for measurements and testing. The 9-cell, 1.3 Ghz cavities, manufactured by ACCEL in Germany, will be used to construct the first U.S. cryomodule for International Linear Collider R&D near the end of 2006. “We plan to use the four cavities from ACCEL and four other cavities to […]