25 June 2009Scientists just finished successfully testing the first particle flow algorithm hadronic calorimeter for the International Linear Collider, with unprecedented granularity and novel readout technology. This sub-detector, the analog hadronic calorimeter, was built by the CALICE (Calorimeter for the Linear Collider Experiment) collaboration and is one of several options for the hadronic calorimeter of a future ILC detector.
Category: Feature | Tagged: CALICE, hadronic calorimeter, particle flow algorithm
26 March 2009This is the second report on the two detector meetings held in Korea in February, ILD and CALICE, this time focusing on the CALICE (Calorimeter for the linear collider experiment) collaboration spring meeting at Kyungpook National University in Daegu on 19 and 20 February. CALICE, launched in 2002, meets twice a year to discuss the R&D issues of calorimetry technologies and the large-scale test beam experiments, specifically in the recent meetings to prepare for the world’s first test on a digital hadron calorimeter.
Category: Feature | Tagged: CALICE, Korea
Perrine Royole-Degieux | 5 February 2009Hundreds of millions of channels of electronics: this is about what the electromagnetic calorimeter (ECal) of the CALICE collaboration will have to design, process and analyse. The very high granularity of ILC detector’s future calorimeter will also be reflected in the ambitious first-stage electronics – or very-front-end electronics, which still needs to be designed. One part of the electronic jigsaw is the analogue-to-digital converter (ADC). At LPC, a CNRS/IN2P3 lab in Clermont-Ferrand, France, the latest ADC prototype fulfills the ILC requirements in terms of resolution, compactness, time of conversion and power consumption.
Category: Feature | Tagged: CALICE, CNRS/IN2P3, ECal, France
5 June 2008Even if you don't want to step through new control room's swish sliding doors, you can have a look inside DESY's new feature because of its doors made of glass: it is a medium-sized room with some technical interior and an ILC colour scheme. There are two computer working stations, each with four monitors and a small conference table; on a big screen you see the pictures from three webcams; and three clocks hang on the wall, showing the local times of DESY/CERN in Hamburg/Geneva, Fermilab near Chicago and KEK near Tokyo.
Category: Around the World | Tagged: CALICE, control room, DESY
8 May 2008One of Fermilab's most distinct buildings now has a new resident. Last month, members of the CALICE collaboration moved their calorimeters into the newly renovated Meson Test Beam Facility. They will test the calorimeters with low- and high-energy particle beams during the next two years.
Category: Feature | Tagged: CALICE, Fermilab, Meson Test Beam Facility
Perrine Royole-Degieux | 27 September 2007The CALICE (Calorimeter for Linear Collider Experiment) collaboration is growing and anticipating the future of ILC calorimeters. The members not only prepare test-beams for the current generation of calorimeter prototypes, but they also prepare the future design of ILC sub-detectors. A record number of 72 CALICE members reviewed and discussed all these aspects two weeks ago in Prague during a collaboration meeting.
Category: Feature | Tagged: CALICE, calorimeter
Barbara Warmbein | 30 August 2007This summer, a stage was all the world for some of the men and women of the CALICE collaboration. For the first time, the full prototypes of the electromagnetic calorimeter, the hadronic calorimeter and the tailcatcher and muon tracker (designed and built by international collaborations and assembled in Paris, Hamburg and Northern Illinois respectively) played lead roles in the SPS test beam at CERN. In more than two months, the collaboration collected more than 100 million events, nearly 14 terabytes of data, thus not only testing their prototypes but also the data grid.
Category: Feature | Tagged: CALICE, CERN, DESY, HCal
Barbara Warmbein | 19 April 2007Not 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: CALICE, DESY, detector R&D, MPPC, SiPM
Barbara Warmbein | 29 March 2007When 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: CALICE, DESY, detector R&D, ECal, HCal