Notes from Zeuthen meeting

Issues which have been discussed at the ILD workshop and the brief summary

1. Task sharing
(1) KEK   iron structure,  12-shape,  CMS-like assembly, coil and cryostat,
            W-support tube on the floor   - rigidity of structures
            for ILD(1)

(2) France  LDC detector update to ILD
            for ILD(2)
   
(3) sub-detector structures  should be prepared by each sub-group


2. 3d CAD
(1) CAD master  in French group
 - to integrate iron structure and sub-detectors for an ILD detector
 - to coordinate a common file such as STEP and files of material properties
 - to prepare a web-site where the files can be uploaded and downloaded

(2) CATIA possibility at KEK will be considered, if it is cheap !

(3) Common data base
If we choose the EDMS system for common data base,
     - need detailed introduction as  we discussed at phone meetings Since EDMS will be considered as future plan, we will use the ILD homepage (http://www.ilcild.org ), where STEP files and material property files are stored.


3. Meeting  before/after Sendai meeting,  If we like to discuss with more engineers , KEK is preferable place for the meeting " suggestion to have MDI face-to-face meeting before or after the Sendai meeting.  Optimum place must be KEK for meeting with engineers at KEK for discussion on the technical issues in details.  If it is accepted, we would like to invite ILD engineers as much as possible."

Since it is too late for planning such meeting, we will have meetings in parallel as this workshop.

4. Future MDI/I phone meetings
   - EDMS for common data basis " will be postponed for future option. "
   - B-field issues  - VTX inner radius   with the optimization group
   - stray field tolerance  - iron thickness
   - structure stability/strength with 12- and 8-shape ( iron yoke)
   - opening method ( LDC and GLD methods )
   - beam pipe structure;   strength and wakefield with the expert
   - TPC endcap and field cage thickness,and inner radius with LC-TPC group
        - hadron production in two photon process

9 -12 June, ECFA meeting, Warsaw