Overview of NLC/JLC Collaboration

Abstract

The NLC/JLC collaboration focuses its major effort on X-band linac technology which is the main part of a 1 TeV electron-positron linear collider. Both SLAC and KEK have pursued R&D for a TeV linear collider over 15 years with the acronyms NLC (Next Linear Collider) and JLC (Japan Linear Collider). The two teams assumed X-band (11.424 GHz) warm linac technology for the main linac, although R&D for technology at C-band (5.712 GHz) has also been optionally undertaken at KEK. The collaboration between SLAC and KEK is focused on the X-band linac technology and low-emittance beam generation study [1] at the ATF (Accelerator Test Facility) damping ring of KEK. In this collaborative framework, however, many other laboratories have also contributed: BINP (Protvino, Russia), Postech (Korea), IHEP and Tsinghua University (Beijing), LLNL, LBNL and recently FNAL (USA), and several universities worldwide. Since 1998, 8 meetings have been held for the International Study Group (ISG), through which NLC and JLC are getting much closer in the design features and R&D directions. The report below summarizes is the recent R&D status on X-band accelerating structures and RF power source together with some interesting results of the most-up-to-date beam monitors developed at the ATF dampingmore » ring.« less