Welcome

• Yannis Karyotakis (Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP))

Motivation for a Tungsten HCal Prototype

• Dieter Schlatter (CERN)

CALICE Prototype and existing Detector Planes

• Felix Sefkow (DESY)

First ideas of W plates implemented in CALICE CAD model

• Karsten GADOW (DESY)

Micromegas for the W HCal Prototype

• Catherine Adloff (IN2P3, Annecy)

Readout and DAQ for Micromegas

• Guillaume Vouters (IN2P3, Annecy)

Commercially available Tungsten

• Wolfgang Klempt (CERN)

Shower Sizes in Tungsten

• Christian Grefe (CERN, Bonn University)

LUNCH BREAK

Discussion

• un-moderated, participation by all

What do we want to learn form the W HCal prototype ? Slow neutrons and E-resolution, PFA, time-stamping What simulations are still needed ? At what beam energies shall we test the prototype ? List of priorities What minimum size (lateral and longitudinal) is needed ? Any constraints to equip CALICE module with W plates ? Which active layers to be used, and when ? What granularity of the active layers for the prototype ? Tracking upstream of the prototype Readout and DAQ Possible schedule Action list

END OF PLENARY SESSION

Discussion Round on Engineering Issues

• those interested to participate