Status of ILD1

• Toshiaki Tauchi (KEK)

Iron yoke the shape what material for the yoke: B-H curves the field inside the TPC The stray field at 10m adding 80 cm Splitting of return yoke in z ( weight), and back part in 2 ( in x )

CAD systems Most of Cad codes are compatible via step files. M. Jore Sharing through Smarteam on the web. Access to the other intitutes.

State of the TPC questions lot of exchange via emails, depending on readout technologies, the endplates might correspond to 10 cm thickness and 10-15% of X0.

Beam pipe Some drawings of the beam pipe with different shapes are available on ilcild.org Still calculations to be done regarding the thickness of the wall, the wakefield.

calorimeters and the integration issues * 8/12 for calorimeters * LHCAL / luminosity * Pumping * Holding the forward components * Holding the inner detectors * Assembly in the pit * Opening schemes

Discussion What can we hope to have for Sendai. Defining a planning for after Sendai: what do we want to have when? a bit more organisation.