From ILC: “Practi-Cal”

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Linear Collider Collaboration

7 July 2016
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Testing, testing… calorimeters in the test beam at CERN.

Better together: two technological prototypes of the high-granularity calorimeters for a future ILC detector have been tested together with particle beams at CERN in a combined mode. The Semi-Digital Hadronic CALorimeter (SDHCAL) prototype with its 48 layers and the Silicon Electromagnetic CALorimeter (SiECAL) with its 10 units, both part of the CALICE collaboration, spent two weeks taking data on the “H2” beam line at CERN’s SPS. The principal goal of this beam test was to validate their combined data acquisition (DAQ) system developed by the teams working on the two calorimeters. After the fixing of a few problems that appeared during the data taking, the DAQ system ran smoothly and both prototypes took common data. This is what they will have to do in the future to register electron-positron collisions at the ILC.

Physicists and engineers from six countries participated in this beam test: Belgium, China, France, Japan, Korea and Spain. Future tests will focus on studying the common response of these two calorimeters to the different kinds of particles. “The success of this combined test will certainly encourage other detectors proposed for the tracking system (Silicon and TPC detectors) to join the adventure…,” Imad Laktineh, professor at IN2P3’s Institut de Physique Nucléaire de Lyon,who supervised the combined beam test, hopes.

More about calorimeter test beams here and here.

See the full article here .

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The Linear Collider Collaboration is an organisation that brings the two most likely candidates, the Compact Linear Collider Study (CLIC) and the International Liner Collider (ILC), together under one roof. Headed by former LHC Project Manager Lyn Evans, it strives to coordinate the research and development work that is being done for accelerators and detectors around the world and to take the project linear collider to the next step: a decision that it will be built, and where.

Some 2000 scientists – particle physicists, accelerator physicists, engineers – are involved in the ILC or in CLIC, and often in both projects. They work on state-of-the-art detector technologies, new acceleration techniques, the civil engineering aspect of building a straight tunnel of at least 30 kilometres in length, a reliable cost estimate and many more aspects that projects of this scale require. The Linear Collider Collaboration ensures that synergies between the two friendly competitors are used to the maximum.

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