David Jaffe, UC Riverside / Los Alamos National Lab, Brookhaven National LabTitle: Results of the PHENIX MVD Prototype Detector and Electronics Beam TestAuthors: D. Jaffe (UC Riverside); M. Allen, C. Britton Jr., M. Emery N. Ericson (Oak Ridge National Lab), J. Boissevain, D. Clark, B. Jacak J. Kapustinsky J. Simon-Gillo, J. Sullivan, H. van Hecke, N. Xu (Los Alamos National Lab), J. Chang, H. Xiang, G. Xu (UC Riverside), Y. Takahashi (UAH)Abstract: In the Spring of 1996, the PHENIX Multiplicity and Vertex Detector Group (MVD) conducted a beam test with prototype silicon detectors and custom electronics. PHENIX, one of the large experiments to be conducted at the Relativistic Heavy Ion Collider (RHIC), will investigate phase transitions to the quark-gluon plasma with gold-on-gold collisions provided by the RHIC accelerator. As the first line instrument in PHENIX, the MVD will measure the angular distribution and multiplicity of charged particles, provide event vertex information to better than 2 mm, and serve as a centrality trigger for the experiment. At eta = 5, the MVD has the largest rapidity coverage of any PHENIX subsystem. The MVD is primarily comprised of two 64 cm long concentric barrels of silicon microstrip detectors, with 200 micron pitch strips oriented perpendicularly to the beam (z) axis. Two prototype silicon microstrip detectors and 2 x 32 channels of prototype custom electronics were tested in a 2-8 GeV piKp beam at the Brookhaven National Laboratory AGS. Results of the beam test are presented in this poster. |