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No more HF?

Fermilab and Faraday Technology Inc. are developing an environmentally and worker friendly electropolishing technique for SRF cavities

| 26 September 2013

The standard electropolishing process for SRF cavities requires a mixture of strong, potentially hazardous acids to smooth the inner surfaces of the cavities, allowing them to reach high gradients. Researchers at Fermilab and Faraday Technology Inc. have developed a new water-based process that would be both safer for workers and more environmentally friendly. In June, […]

How to keep cavities blemish-free

| 14 July 2011

Worrying about blemishes on the skin is not just an issue for people who pursue personal physical beauty, but also for accelerator scientists. Scientists and engineers at KEK have found a way to deal with unwanted stains on the inner surface of superconducting cavities, which might be one of the causes of performance limitation. Since […]

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

| 24 November 2010

Giorgio Apollinari, head of the Technical Division, wrote this week’s column. Giorgio Apollinari 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 […]

Jefferson Lab’s rules for achieving spotless cavities

| 18 November 2010

Depending on your household’s rules of cleaning, you may have learned about a “right way” to wash dishes: keep dishwater clean for as long as you can, cleaning glasses first, then silverware, then plates. Save the dirtiest wares, pots and pans, for last. Jefferson Lab technician James Davenport carefully inserts a cathode into an ILC […]

From Jefferson Lab News: ILC treatment of JLab cavity garners exciting result

| 5 February 2009

For the last few years, Jefferson Lab staff members have used the lab’s unique facilities to test various accelerator components for a proposed next-generation collider, the International Linear Collider. Reminiscent of a stack of doughnuts, accelerator components called cavities energize particles for use in experiments that explore the smallest bits of matter. In preparing ILC […]

Polishing the safety standards

| 27 March 2008

Superconducting cavities are the core, the heartbeat of the International Linear Collider. Their inside will be polished to literally make them sparkle without any speck of dust or crack because these could cause a decline of performance of the accelerator. There are several methods to polish the inside of the cavities, and electropolishing (EP) is […]

Cornell University Moves Forward on Vertical Electropolishing

| 15 March 2007

Recent results from Cornell University demonstrated that a new method of electropolishing superconducting cavities may hold promise for the International Linear Collider. For the past two years, Cornell scientists have been developing an electropolishing method that treats cavities vertically as opposed to the traditional horizontal orientation developed by KEK. Cornell recently applied this new vertical […]