Scintillating fiber tracking detectors are being developed for the SDC experiment at Superconducting Super Collider (SSC) and the upgrade of the D0 detector at the Fermilab Tevatron. The many ...attractive features of a fiber tracker include good position resolution, low occupancy, low mass in the active volume, and excellent resistance to radiation damage. An additional important feature, especially at the SSC, is the intrinsically prompt response time of a scintillating fiber. The photodetector of choice is the visible light phonon counter (VLPC), a device which combines high rate capability with high quantum efficiency at visible wavelengths. To realize the high rate capability of the VLPC requires the implementation of a suitable, fast preamplifier. Until recently, studies of fibers and VLPCs with radioactive sources and cosmic rays have been performed under low rate conditions using transimpedance amplifiers (TIAs). The authors report on the response characteristics of a fiber-VLPC system coupled to a variety of fast preamplifiers, including QPA02, VTX, and TVC devices. Their performance is compared with that of a transimpedance amplifier.< >
The final design and construction of a 46080 channel silicon microstrip vertex detector (SVX) for the Collider Detector Facility (CDF) experiment at the Tevatron collider are described. The system ...performance of the front end electronics employing a custom VLSI readout chip and the mechanical support and cooling systems for the 0.7 m/sup 2/ silicon detector are discussed. The authors present performance results from initial testing of individual components through final testing of the full system of detectors, readout, cooling, and data acquisition. Preliminary results from cosmic ray triggered data are also described.< >
Construction of the CDF silicon vertex detector Skarha, J.; Barnett, B.; Boswell, C. ...
Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference,
1991
Conference Proceeding
Open access
Technical details and methods used in constructing the Collision Detector Facility (CDF) silicon vertex detector are presented. Attention is given to the foam-carbon fiber composite structure used to ...support the silicon microstrip detectors and the procedure for achievement of 5- mu m detector alignment. The construction of the beryllium barrel structure, which houses the detector assemblies, is also described. In addition, the 10- mu m placement accuracy of the detectors in the barrel structure is discussed, and the detector cooling and mounting systems are described. The construction of the CDF silicon vertex detector has been completed. The silicon strip detectors are located to an accuracy of 10 mu m and >98-5% of the silicon strips are fully functional.< >
We have searched for a light standard-model Higgs boson produced in association with an intermediate vector boson at the Fermilab proton-antiproton collider operating at a center-of-mass energy of ...1.8 TeV. The search was made by looking for an excess of isolated high-transverse-momentum charged-track pairs in {ital W} and {ital Z} events. A Higgs boson with a mass {ital m}{sub {ital H}} in the intervals 2{ital m}{sub {mu}}{lt}{ital m}{sub H}{lt}818 MeV/{ital c}{sup 2} and 846 MeV/{ital c}{sup 2}{lt}{ital m}{sub {ital H}}{lt}2{ital m}{sub K} is excluded at 90% C.L.
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