The first meeting of the International Detector Advisory Group (IDAG) for the ILC detectors was held in Warsaw during the ECFA Linear Collider workshop on 9 and 10 June. There were both open and closed sessions. The closed meeting became a good chance for the IDAG members to meet with each other, the Letter-of-Intent (LOI) representatives and research directorate members in order to share their views as to what their tasks are and how the validation process can be made. On the first day Barry Barish, GDE Director, was able to join so that we could clarify the planning for the entire ILC design procedure in the discussions. During the open session, the three groups preparing for LOIs presented their concepts and plans to reach completion of LOIs. The presentations were made by one of the two representatives of each group: Ties Behnke of DESY for ILD, Harry Weerts of ANL for SiD and John Hauptmann of Iowa State University for the 4th concept. They were followed the next day, by closed meetings with the individual groups inviting the available representatives and a few more experts. As the LOI groups are in the middle of LOI preparation, IDAG did not go into detail. It was more the LOI groups who raised questions as to what is needed for the LOIs and what will happen after they submit them. Details for the future are not fixed yet. Summarising these discussions, IDAG will make a list of additional questions which they think are important on top of the more general guidelines given by the ILCSC last October. Many IDAG members were also able to attend the entire workshop in order to get ideas on the status of R&D studies and design work.
– Sakue Yamada