Barry Barish | 16 December 2010Today, I describe the second of the proposed change actions, which has been stated as follows: "We propose to change the main linac tunnel configuration to one with only a single, accelerator-enclosure tunnel, thereby eliminating the support equipment tunnel proposed in the Reference Design. We propose to develop and include in the baseline two novel High-Level RF power source and distribution schemes ("KCS" and "DRFS") that are better suited to a single-tunnel solution than the scheme proposed in the RDR. A fall-back to the RDR HLRF Technology can be adopted should the R&D on KCS or DRFS not be considered successful."
Category: Director's Corner | Tagged: baseline configuration, DRFS, ILC baseline, KCS, main linac tunnel, single tunnel
Jim Brau | 21 January 2010[...] Sakue has created a working group of people who are able to simulate the effect of SB2009 parameters on physics performance. Some changes are expected to have little effect on the physics performance of the ILC, while other changes potentially may have important negative implications, challenging the fulfillment of the Parameters and performance.
Category: Research Director's Report | Tagged: baseline configuration, SB2009
Barry Barish | 14 January 2010Over the past year, the ILC project managers have led a focussed effort to assess the ILC baseline configuration that is documented in the Reference Design Report (RDR) and as a result have developed a set of proposed baseline changes that are aimed at reducing costs and improve the technical design.
Category: Director's Corner | Tagged: baseline configuration, RDR, SB2009
Elizabeth Clements | 15 December 2005Some of the major recommendations discussed at Frascati include the energy upgrade, number of tunnels, curvature of the tunnel and the number of interaction regions. Kaoru Yokoya, a member of the GDE Executive Committee, outlined the recommendations made in the BCD. "The BCD concluded that a 500 GeV tunnel would be built because of its lower first stage cost.", he said. As the current recommendation stands, a 20 km tunnel would be built during the first stage of the project. An upgrade would occur in between the first and second stage of the project, bringing the machine up to an energy of 1 TeV and increasing the length of the tunnel to approximately 40 km.
Category: Feature | Tagged: baseline configuration, BCD, Frascati, GDE