Muon drift chamber physics and engineering R and D activities for the L* and GEM Detectors in FY 1991

Lawrence Livermore National Laboratory (LLNL) joined the multi- national L* Detector collaboration in early 1990. The L* Detector has been described in great detail in a number of documents submitted to the Superconducting Super Collider (SSC) Laboratory. LLNL`s participation in the L* collaboration consisted of a multi- disciplinary effort involving a number of physicists, engineers and technologists from different areas of the laboratory who came together to identify areas of research, development and engineering on the L* Detector where LLNL`s expertise and technological capabilities could best be utilized. Among these capabilities, superconducting magnet technology, chemistry and materials science, and design of new types of physics detectors were deemed areas of LLNL expertise best suited to the R&D effort needed for L*. This paper will describe the work carried out at LLNL on muon chamber R&D for the L* detector in FY 1991. Because of the L* proposal rejection in May 1991, and the subsequent restructuring to form the GEM detector collaboration in July 1991, the work described in this paper will also be seen to the applicable to the envisioned muon chamber subsystem for GEM.