Tag archive: FLASH
Barbara Warmbein | 29 March 2012
In their unflagging quest to achieve higher gradients for the ILC, scientists in the 9-mA study programme at DESY’s FLASH facility develop a better knack for automating accelerator voltages, helping keep cavity gradients high and the whole system stable.
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Feature | Tagged:
accelerator R&D, cavity gradient, DESY, FLASH, klystron, long bunch train
2 February 2012
The world’s fastest (and shortest) movie has superconducting radiofrequency technology to thank for its entry into the Guinness Book of World Records. Shot at DESY’s FLASH X-ray laser, which accelerates electrons in much the same way as the ILC will, it shows a micro model of the German Brandenburg Gate at an interval of a mere 50 femtoseconds between two frames. Read DESY's press release
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Image of the week | Tagged:
DESY, FLASH, laser, SRF technology
Leah Hesla | 4 August 2011
A stable particle beam needs a trouble-free path on its way to high energies, and that means providing it with a smooth gradient to ascend. A team of scientists at Fermilab has arrived at a way to control accelerating cavities so they can give particle beams exactly that – a tilt-free path to collision.
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Feature | Tagged:
9 mA experiment, cavity gradient, cavity testing, DESY, Fermilab, FLASH
Leah Hesla | 7 July 2011
Keeping accelerating cavities tuned to the right frequency requires continual, gentle hammering by a little device called a piezoelectric tuner. DESY scientists have mastered the art and science of applying the piezo to cavities, bringing them to within several ten-thousandths a percent of the desired frequency.
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Around the World | Tagged:
9 mA experiment, DESY, FLASH, Lorentz force detuning, microphonics, piezoelectric tuner
Leah Hesla | 30 June 2011
Learning to stabilise a particle beam of longer pulses such as those needed for the ILC requires diligence, patience and practice. ILC and FLASH scientists share the fruits of all three at the recent workshop on long bunch trains.
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Feature | Tagged:
9 mA experiment, accelerator R&D, beam-power, DESY, FLASH
Brian Foster | 23 June 2011
Winner of a Humboldt Professorship, Brian Foster has just taken up his work at DESY and University of Hamburg as a joint professor for experimental physics, focusing on accelerators for very high energies. He intends to spend the 5 million Euros for five years to the greatest effect, and the ILC will play a very strong part in his plans.
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Director's Corner | Tagged:
DESY, FLASH, Germany, HERA, Humboldt Professorship, University of Hamburg, XFEL, ZEUS
Wilhelm Bialowons (DESY) | 16 December 2010
Early November, four members of the Global Design Effort Conventional Facilities and Siting group and two guests from Japanese industry visited DESY in Hamburg, Germany, for two days. They wanted to find out more about the current state of the European X-ray Free Electron Laser (XFEL) civil construction and to get information about other relevant projects like DESY
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Around the World | Tagged:
DESY, FLASH, tunnel, XFEL
24 June 2010
For the first time, FLASH produced laser light with a wavelength of 4.45 nanometres; thus, DESY's free-electron laser for soft X-ray light considerably beat its previous record of 6.5 nanometres. At the same time, the peak intensity of single light pulses nearly doubled, with 0.3 millijoule. Prior to this, there was a five-month machine upgrade, above all with a significant improvement of the superconducting linear accelerator and the installation of a seeding experiment together with the University of Hamburg.
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Around the World | Tagged:
DESY, FLASH, free-electron laser
Barbara Warmbein | 1 October 2009
A cryomodule prototype for the European XFEL has set the world gradient record for cryomodules built with superconducting radiofrequency technology, reaching an average accelerating gradient of more than 32 megavolts per metre (MV/m) in recent tests. This is an important step towards major goals set for the ILC’s Technical Design Phase (TDP), which include demonstrating system performance of fully fitted cryomodules like the record prototype. The accelerator module will be built into the FLASH free-electron laser at DESY, making it possible to increase the FLASH energy to 1.2 GeV. This means that even shorter wavelengths down to 4.5 nanometers will be available for experiments starting next year.
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Around the World | Tagged:
cryomodule, FLASH, XFEL
Barbara Warmbein | 24 September 2009
The last two weeks were two of the most important (and intense) weeks for accelerator specialists working on the ILC. After a long period of preparation and a series of first tests, they have just finished a period of successfully running the superconducting linear accelerator FLASH at DESY under ILC-like conditions to demonstrate that a long train of electron bunches with high charge can be produced in and travel through the accelerator – and stay there, too. After the ILC-like run, which ended on Monday after long day and night shifts in the control room, FLASH will receive a major upgrade to improve capabilities and performance for the users of the laser light generated by FLASH.
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Feature | Tagged:
DESY, FLASH
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