Author archive: Barbara Warmbein

Interactions: It works!

| 26 April 2007 Interactions 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: ,

How a calorimeter could save your life

| 19 April 2007 Not many people see an immediate connection between exploring the origins of the Universe and finding cancer cells. Nicola d'Ascenzo and his colleagues sure do. In their work to test photo sensors as potential candidates for an ILC hadronic calorimeter they have come across a sensor that could be extremely interesting for positron emission tomography or PET, an imaging techniques that identifies cancerous cells in a body by detecting emitted gamma rays. Category: Around the World | Tagged: , , , ,

Test Beam Encounters: ECal meets HCal

| 29 March 2007 When scientists take their detector prototypes to a test beam they enter a parallel world. Many basic needs are put on hold - the need for sunlight, regular meals or eight hours of sleep, for example. What counts is the beam time: you have three days, weeks or months to test your equipment, and you have to make the best of it because you might not get another chance. A team from Japan and Korea have just reached the halfway point of their time in the DESY test beam, calibrating, checking and recording data with their electromagnetic calorimeter prototype. Category: Feature | Tagged: , , , ,

Spotting the Movers and Shakers

| 22 March 2007 Not all vibrations are good. With their 600 nanometres in width and only 6 nanometres in height, the ILC's particle beams could easily be veered off course if parts in the accelerating modules, for example the final focus quadrupole, moved by only a few nanometers. Monitoring and feedback systems will make sure that this doesn't happen, but it's even better to identify weak - moving - points and eliminate them from the very beginning. Category: Around the World | Tagged: , , , ,

Testing, Testing

| 1 March 2007 Module 6 has had a bit of a break since we last reported on its progress (NewsLine 11 May 2006 and NewsLine 15 June 2006). It spent the last few months in DESY’s new module test stand in a brand-new building – as sparkling as new buildings in research centres get – and hasn’t been idle. Several cooling cycles and all sorts of tests over several months made sure that its creators knew the exact behaviour of all cavities, cables and couplers, the slow and fast tuners and the magnet. Category: Feature | Tagged: , , ,

Gearing up for LCWS 07

| 11 January 2007 "The most important skill of any secretary is to know the experts. You don't have to be able to do everything yourself, but you have to know who to ask!" Ramona Matthes is a secretary at DESY and together with two colleagues and a couple of scientists form the core of the local organising committee for the Linear Collider Workshop and GDE meeting that will take place at DESY from 30 May to 4 June 2007. In physicists' terms it is far too early to even think about this meeting, but in administrative terms the organising team did well to start in August last year – organising a meeting for up to 800 people isn't done in a couple of weeks, and there are many major and minor things that all have to work once the hordes of participants arrive. With three GDE meetings each year and many others at the side, every region of the ILC has learnt this, sometimes the hard way. Category: Around the World | Tagged: , ,

Bridging Theory, Experiment, LHC and ILC

| 4 January 2007 A new team of young researchers based at DESY will start building more bridges between theory and experiment and between LHC and ILC in May (next year). Philip Bechtle, currently a post-doc at the BaBar experiment at SLAC, has just received approval and a budget for his "Young Investigators Group" from the Helmholtz Association, the largest scientific organisation in Germany spanning 15 research centres, including DESY. Bechtle, one post doc and four PhD students will delve deep into the subject "Terascale Physics: From Data Taking at LHC to Understanding at ILC." Category: Feature | Tagged:

Electron Accelerator R&D for the Energy Frontier

| 20 April 2006 In the context of actively preparing for future electron accelerators and colliders, there will be a two and a half day meeting at LAL, Orsay starting on 15 May. Three European-funded projects (CARE/ELAN, EUROTeV and Euroleap) will meet to review their present activities and to discuss the future. Category: Feature | Tagged:

MAC – Thinking Different

| 20 April 2006 "We will all give our very best to support the ILC design effort in achieving a design that both works and doesn't waste resources," says Ferdinand Willeke, freshly-appointed chairman of the brand-new machine advisory committee - MAC. The committee is a group of 17 'wise old men' who all have a lot of experience and expertise in designing, building and running different accelerators. They come from all types of machines - LEP, the Tevatron, the LHC, HERA, SLC, PEPII, B-factories - and from all over the world. Their mandate is to review GDE accelerator activities and to assist and report to the ILC Steering Committee. They support and advise the GDE in their decision on which technologies and solutions to choose for the ILC, review their cost estimates and milestones and check whether the whole system works. Category: Feature | Tagged:

Ten Thousand Eyes On New Physics

| 30 March 2006 In a tent in a test hall at DESY in Hamburg, Germany, the hadron calorimeter is learning how to see. This calorimeter - an essential part in all proposed detector designs for the ILC - measures the energy of all those particles that make it through the dense electromagnetic calorimeter. It does this with the help of scintillators, small plastic plates where incoming particles interact, leaving information of their energies, a fibre that changes the photons' wavelengths from ultraviolet to green, and tiny photodetectors that convert the light into an electronic signal. Hadrons interact with layers of dense metal, producing the charged particles whose signal is measured and conclusions can be drawn on the energy and nature of the hadron that swooshed past.
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