The Design and Construction of the BES Main Drift Chamber
- Received Date: 1989-11-22
Abstract: The main drift chamber of the Beijing Spectrometer (BES) is briefly described, including its physical design, mechanical design and construction, choice of the working gas as well as the prototype test. The performance of the chamber, experimental and expected value are given, such as solid angle coverage, gain and efficiency, spatial resolution in the R-ϕ plane, axial spatial resolution, dE/dx energy resolution, particle identification, etc.