That was a question at the 38th International Conference on High Energy Physics in Chicago
From 3rd August to 10th August the International Conference of High Energy Physics (ICHEP) took place at the Sheraton Hotel in the heart of the windy city. More than 1400 scientists, students and industrial representatives from all around the world were attending this major conference to present their research and discuss exciting results in High […]
Into the yellow pipes
For the operation of the European XFEL, 800 cavities will be installed in 100 accelerator modules. The cavity production has already been outlined in the two previous stories published in LC NewsLine (and first published in DESY inForm). For their assembly, there is a weekly transport of cavities to France. From there, they return to […]
Into the cold: cavities for the European XFEL put to the test
Eight hundred superconducting cavities for the European XFEL have to be passed through the hands of experts. Their industrial production which was completed in September was covered in the previous issue. However, it is still a long way to go for DESY and its partners to a complete particle accelerator. In this issue, you can […]
Passing the halfway point: 50 XFEL accelerator modules have been tested at DESY
In September 2015, the 50th accelerator module for the X-ray free-electron laser European XFEL was tested at DESY. One hundred accelerator modules are needed for the two-kilometre-long electron accelerator of the X-ray free-electron laser. Each module consists of eight cavities, the actual accelerating structures. This is the first of a three-part series (first published in […]
Superconducting cavities are an important part of the design for many international accelerator projects. These particle-accelerating structures are used for many different accelerators from those that produce brilliant light for investigating the microcosm of atoms and molecules to those that let elementary particles collide with each other to understand the beginning of the universe. The […]
The Linear Collider Workshop (LCWS2015) will be held, at Whistler, BC, Canada, in November, this year. The 17th International Conference on RF Superconductivity (SRF2015) was held in the same place from 13 to 18, September, just prior to the LCWS. We would thank TRIUMF hosting two major conference/workshop events at the nicest village surrounded by […]
Japan (followed soon by China) has entered the Year of the Horse. Happy New Year to all our readers!
Fermilab and Faraday Technology Inc. are developing an environmentally and worker friendly electropolishing technique for SRF cavities
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, […]
Fermilab researchers make headway towards improving SRF cavities by understanding more about how hydrides may limit their quality factors
Hydrogen has long been known as a possible enemy of superconducting radiofrequency (SRF) cavities – like those needed for the ILC – because of 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 […]
The term cavity gradient is used to describe the electric field that accelerates a particle. This reflects the most basic purpose of each cavity. “What you want out of a cavity is to give a particle more energy than it had before,” says Fermilab physicist Andy Hocker. Cavity gradient determines the rate of this change: […]