Design and construction of a scattering chamber facility for ATLAS

The types of experiments expected to be performed using the beams of ATLAS placed a number of constraints on the kind of chamber to be built and in the end determined the conceptual flexible design chosen. The design work for all the major components of the chamber was completed in the fall of 1984 and at the present time all the essential components are in the process of being fabricated and are at various stages of completion. Installation of the vacuum chamber is expected to occur in early spring of 1985. Tests of the chamber with beams are planned for the summer of 1985. Work on other aspects of the project are also progressing well. The control electronics for local and remote control of the chamber motions has been designed and is scheduled for fabrication. The PDP11/23 computer and associated peripherals have been delivered and tested. Work on setting up the basic structure for the software has begun. The control system is expected to be operational, in a primitive form, for the shake-down tests in summer