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European Semi-Digital Hadronic Calorimeter


One of the innovative concept to be fully tested by the CALICE collaboration is the one of a semi-digital hadronic calorimetry where the deposits from the hadronic showers are recorded with a fine (11 cm cells, 40-50 layers) granularity with only a coarse energy information (2 - 3 thresholds). Based on gaseous sensor (GRPC or MicroMegas chambers) the proposed detector also includes, for the first time a memory capable, detector embedded readout chips.

This page present the effort of the european groups toward the construction and beam test of a full 1 m prototype, including most of the dependancies implied by the running at the ILC, totalling 400000 channels.



Lien vers page LAPP



The readout will be done with embedded ROC able to store the hits above 3 thresholds for 64 channels (verif DIRAC), with very low consumption (using power pulsing techniques)

The presentation of the EuDHCAL can be found here;

Presentation in conference.

ILC dependancies

  • low consumption
  • Zero suppression
  • Differed readout
  • Excellent geometric resolution, suitable for the PFA techniques adopted by the ILD and SiD concepts.

Implied Groups

GroupSorted ascending People
CIEMAT - Madrid
IHEP - Protvino
IPNL - Lyon
LAL - Orsay
LAPP - Annecy
LLR - Palaiseau


ReadOut Chip

-- VincentBoudry - 12 Sep 2008

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Topic revision: r2 - 2008-09-19 - JeanClaudeBrient
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