Tag archive: KEK
Rika Takahashi | 17 March 2011
As many people in the world already know, Japan is currently dealing with its worst disaster: Japan's biggest earthquake on record and the fourth largest in history. Thousands of lives have been lost. Tens of thousands people are forced to evacuate and live without basic necessities. Hundreds of thousands are still missing.
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Feature | Tagged:
earthquake, Japan, KEK
Toshiaki Tauchi | 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.
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Feature | Tagged:
ATF, ATF2, earthquake, Japan, KEK
Barry Barish | 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:
CERN, European Strategy for Particle Physics, FALC, funding, funding agencies, INFN, KEK, Super B, SuperKEKB
Rika Takahashi | 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.
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Around the World | Tagged:
DRFS, KEK, klystron, power, radiofrequency, single tunnel, superconducting cavity
Rika Takahashi | 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:
accelerating gradient, cavity gradient, KEK, Kyoto camera, nine-cell cavity, quality factor, STF
Hitoshi Yamamoto | 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:
Japan, KEK, MEXT, roadmap, SuperKEKB
Leah Hesla and Rika Takahashi | 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.
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Around the World | Tagged:
Fermilab, KEK, LFD compensation, Lorentz force detuning
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.
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Around the World | Tagged:
KEK, Summer Challenge programme
Leah Hesla | 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.
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Around the World | Tagged:
cavity, DESY, Fermilab, KEK, SRF technology, tuning machine
Leah Hesla | 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:
Fermilab, KEK
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