European Semi-Digital Hadronic Calorimeter

Introduction

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 (1×1 cm² 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 m³ prototype, including most of the dependancies implied by the running at the ILC, totalling 400000 channels.

Detectors

MicroMegas

Lien vers page LAPP

GRPC

• Simple
• Drawings
• MultiLayers

Electronics

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

MailingList

ROC

ReadOut Chip

-- VincentBoudry - 12 Sep 2008