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Tag archive: KEK

A scientist’s report on the earthquake and KEK’s accelerator test facility

| 17 March 2011 A huge 9.0-magnitude earthquake descended on us at about 14:46 on 11 March 2011 Japan standard time. The ATF (accelerator test facility) was operating for ATF2 beam-tuning and we were going to have a background study for the interaction point beam size monitor. Category: Feature | Tagged: , , , ,

FALC discusses future programmes in particle physics

| 10 March 2011 Representatives of particle physics funding agencies worldwide met at SLAC in January in an informal forum called FALC. This provided an opportunity to jointly discuss the worldwide program and plans in particle physics on the eve of the much anticipated next data run at the CERN Large Hadron Collider. Category: Director's Corner | Tagged: , , , , , , , ,

Many small klystrons for operability and flexibility

| 10 February 2011 Scientists at KEK in Japan are currently developing a 'distributed radiofrequency system' for delivering radiofrequency power to the ILC accelerating cavities. An alternative solution to the 'klystron cluster scheme', this powering method accommodates the ILC’s new one-tunnel design. Category: Around the World | Tagged: , , , , , ,

From KEK: Japanese 9-cell SCRF cavity meets ILC specification

| 9 December 2010 Designing and fabricating an optimal accelerating cavity is not so simple. There are two important parameters scientists are looking for: the gradient of 35 megavolts per meter (MV/m) and the quality factor (Q0) of greater than 0.8×10^10. A Japanese cavity now fulfilled those requirements for the first time at a test which took place at the Superconducting radiofrequency Test Facility (STF) at KEK, adding momentum towards future mass production. Category: Feature | Tagged: , , , , , ,

ILC and Super KEKB

| 18 November 2010 Even though additional funds are needed to complete the Super KEKB upgrade, th[e MEXT funding appropriation] signaled an essential go-ahead for the project, clearing the way for the ILC. Category: Research Director's Report | Tagged: , , , ,

“Set it and forget it!”

and | 28 October 2010 Fermilab and KEK scientists recently hooked up a new cavity tuning system to the various cavities in the so-called cavity-tuner zoo at KEK. This zoo, comprising eight superconducting radiofrequency cavities fabricated by four different vendors from three different regions, was the testing ground for a new development in what is called Lorentz force detuning (LFD) compensation. Category: Around the World | Tagged: , , ,

Summer Challenge programme for young intelligence

2 September 2010 About 90 students from all parts of Japan gathered at the Summer Challenge programme held at KEK, Tsukuba from 21 to 29 August 2010. Starting in 2007, this programme intended for junior students who are interested in high-energy physics was the fourth in the series this year. 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: , , , , ,

From Fermilab Today: Fermilab-designed beam position monitors go to KEK

| 12 August 2010 Last May, in only two weeks' time, a team of Accelerator Division Instrumentation Department employees installed, powered, debugged and started up a brand new, home-made beam position monitoring system at KEK's Accelerator Test Facility. It worked flawlessly. Category: Around the World | Tagged: ,

From KEK Highlights: Never lost in translation

12 August 2010 Every day, KEK welcomes scientists and students from around the world. Some of them come here as collaborators who work on the international projects and programmes using cutting-edge facilities at KEK. Some visit as users who wish to use the beamlines at the Photon Factory to look into the smallest worlds. Many graduate students will write up their hard work here into their thesis. Many of them stay only days or weeks, but some of them stay longer to concentrate on the R&D for months or even years, like Dr. Philip Bambade from LAL in Orsay, France. Category: Feature | Tagged: , , ,