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Jefferson Lab’s rules for achieving spotless cavities

| 18 November 2010 A research team at Jefferson Lab has developed its own detailed set of rules for optimal cleaning. Team members have been working on a regimen for removing imperfections and impurities from superconducting radiofrequency (SRF) niobium cavities. Their procedures, they believe, have helped create cavities that could exceed ILC 2010 performance benchmarks. Category: Feature | Tagged: ,

You say you want more resolution…

| 4 November 2010 Scientists led by a group at Argonne National Laboratory are bringing pictures of hadronic showers into sharper focus with the Digital Hadron Calorimeter, or DHCAL, one of several hadron calorimeter options for the ILC detector. The Argonne group began testing the device last month at the Fermilab Test Beam Facility. Category: Feature | Tagged: , ,

Geneva part 2

| 28 October 2010 As the first in a planned series of workshops, the International Workshop on Linear Colliders had many accomplished missions on the agenda. The ILC, for example, has passed its self-imposed fifty percent mark: half of the nine-cell superconducting radiofrequency cavities produced in the world now reach the desired gradient. The Compact Linear Collider Study (CLIC) has shown that it can generate a high-intensity drive beam by beam manipulation. And both linear collider communities have demonstrated that they get mutual benefit from working together on common issues and meeting once a year to discuss them in plenary. Category: Feature | Tagged:

Live from Geneva

21 October 2010 For the first time in a meeting of this scope, this year’s International Workshop on Linear Colliders in Geneva, Switzerland, brings together researchers from both of the world's major linear collider projects: the International Linear Collider and the Compact Linear Collider. Organised by the European Committee for Future Accelerators, the conference is held at CERN and at the International Conference Centre in Geneva. Scientists discuss the status of the two machines and the physics they could uncover. Break-out sessions allow scientists to exchange ideas related to accelerator and detector technologies. Our photo album shows some impressions from the first days. Category: Feature, Slideshow | Tagged: ,

From interactions: DESY and TRIUMF take home top prizes from the first Global Particle Physics Photowalk

14 October 2010 A sunburst image of a particle detector at Germany's DESY laboratory and a black-and-white photograph of a nuclear-physics experiment at TRIUMF in Canada have won the top prizes in the first-ever Global Particle Physics Photowalk. Category: Feature | Tagged: ,

Your chance to influence the Project Design Guidance

7 October 2010 At the end of 2012, the Global Design Effort (GDE) will release its Technical Design Report. At the same time, the Research Directorate (RD) and the ILC community will produce detailed baseline designs for two detectors. Category: Feature | Tagged: , ,

Georges Charpak: a revolution in particle detection

| 7 October 2010 It's hard to imagine a particle physics experiment that wouldn't use one of his concepts. Georges Charpak, Nobel Prize-winning physicist, passed away last week. Particle physicists owe him a lot, and so does the general public, since his inventions yield applications in many other fields that use ionising radiation such as biology, radiology and nuclear medicine. Category: Feature | Tagged: ,

Five labs through 200 lenses

| 30 September 2010 A woman kneels, almost devoutly, in front of a piece of beam pipe. One man is lying flat on his belly, squinting along the underside of a long step illuminated by blue warning lights. Another sits cross-legged opposite a barrel wheel of a particle detector and studies its forms. A new meditation class for particle physicists? No - just the world’s first global particle physics photo walk. Category: Feature | Tagged: ,

Working through the weekend at the ATF

| 30 September 2010 On 27 September, the Japan's local winners of the first Global Particle Photo Walk were announced. This Photowalk was held at five particle physics laboratories in the world on 7 August (see Feature Story this week). The winning photo taken by Yuki Hayashi features scientists working at the Accelerator Test Facility (ATF) at KEK. But they are not Japanese scientists. They are three of the nine French scientists and engineers who were visiting the ATF from the end of July to install and test their four-mirror optical cavity. Category: Feature | Tagged: , , ,

From CERN: CMS observes a potentially new and interesting effect

23 September 2010 After almost six months of operation, experiments at the LHC are starting to see signs of potentially new and interesting effects. In results announced by the CMS collaboration today, correlations have been observed between particles produced in 7 TeV proton-proton collisions. Category: Feature | Tagged: ,