Barbara Warmbein | 16 August 2007Like the rest of society, the ILC community is split into two categories: the early risers and the night owls. Workshop organiser Andrei Seryi considers himself a night owl. Nevertheless he is up at 5 and in the lab at 6 am many days per week these weeks, holding phone meetings with the rest of the world. Some hundred specialists are already extremely busy preparing for the ILC interaction region engineering design workshop, or IRENG07, at SLAC in September. Their goal: to have all the facts together to take important decisions for the ILC’s interaction region.
Category: Feature | Tagged: interaction region, IRENG, push-pull, SLAC
9 August 2007Clouds might be welcome during a drought, but you definitely don't want them in your beam pipes. Researchers around the world are working out how to keep a section of the proposed International Linear Collider—the positron damping ring—clear of electron clouds.
Category: Feature | Tagged: accelerator R&D, damping ring, electron cloud, SLAC
19 July 2007While other labs concentrate on developing superconducting cavities for the International Linear Collider (ILC), SLAC is focusing on the technology needed to power them. In addition to klystron, modulator and radio frequency (RF) distribution development, this effort includes a coupler program. A coupler is basically a coaxial transmission line that connects normal-conducting, air-filled, room-temperature waveguides to each superconducting, evacuated, super-cold accelerator cavity. The couplers are complex devices due to the various requirements imposed on them; they must convert the RF to a coaxial mode, transmit high power (~300 kW), be mechanically flexible for cool-down of one end to 2K (-271
Category: Around the World | Tagged: cavity coupler, coaxial test stand, SLAC
Elizabeth Clements | 5 July 2007When the Accelerator Test Facility (ATF) group at KEK decided to upgrade their beam position monitor system in 2005, Marc Ross had a solution. Based at SLAC at the time, he was a longtime collaborator with KEK and familiar with the instrumentation systems used throughout Fermilab’s accelerator complex. In 2006, Ross became the head of Fermilab’s Technical Division and could see how to continue his initiated beam position monitor upgrade efforts at the ATF damping ring. Called Echotek boards, these digital signal processing based systems offer a higher resolution potential – a characteristic that allows physicists to see more details about the beam. As it turned out, Fermilab was willing to make several Echotek boards available for testing the ATF system. Hence a new collaboration was born.
Category: Feature | Tagged: ATF, beam emittance, beam position monitor, Fermilab, KEK, SLAC
Barbara Warmbein | 26 April 2007Interactions members now officially classify as a tribe: flocking round the warming fire against the Californian chill they shared a goat during their meeting at SLAC last week. But though food may be memorable during the meetings of the InterAction collaboration, discussions and strategic plans are even more important for the communication representatives of particle physics labs, universities and projects. LHC start-up, the future of ILC communication and the meaning of blogs were just a few of the topics on the agenda of the three-day meeting that brought together 16 core and about 10 extended members of the InterAction family. They welcomed two new faces: Rika Takahashi, who has just taken up her job as ILC communicator for Asia at KEK, and Romeo Bassoli from INFN.
Category: Around the World | Tagged: InterAction Collaboration, SLAC
1 February 2007The current design for the International Linear Collider (ILC) requires 576, 10-megawatt klystron tubes to supply microwave power along its 40 km linear accelerator. Each ILC klystron tube needs 120,000 volt, 140-ampere pulses, fired at a rate of five pulses per second. Each pulse delivers a total energy of more than 23 kilojoules—the kinetic energy of a 20 millimeter cannon shell.
Category: Feature | Tagged: klystron, marx modulator, SLAC