VXD 3 : the SLD Vertex Detector Upgrade Based on a 307 MPixel CCD System
نویسنده
چکیده
The SLD upgrade CCD vertex detector (VXD3) is described. Its 307 million pixels are assembled from 96 3.2 Mpixel CCDS of 13 cm2 each. The system has evolved from the pioneering CCD vertex detector VXD2, which has operated in SLD since 1992. The CCDS of VXD3 are mounted on beryllium ladders in three cylinders, providing three space point measurements along each track of about 5 microns resolution in all three co-ordinates. Significant improvements are achieved with VXD3 in impact parameter resolution (about a factor of two) and acceptance (-2070) . . through optimized geometry and reduced material. New readout electronics have been developed for this system.
منابع مشابه
Design and Performance of a New 307 Mpixel Ccd Vertex Detector*
During the past year, the SLD Collaboration completed construction and began operation of a new vertex detector (VXD3) with 307,000,000 CCD pixels. This upgrade will improve the SLD measurement of the polarization-enhanced forwardbackward asymmetry for band cquarks and the precision of the measurement of the b-fraction in hadronic Z decays and opens the possibility to observe ~~-m.ixing. Full s...
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