TL;DR: In this article, the authors describe a pixel readout ASIC for use at the Tevatron collider at Fermilab, and present test results on the first prototype readout chip.
Abstract: A description is given of the R&D program underway at Fermilab to develop a pixel readout ASIC appropriate for use at the Tevatron collider. Results are presentetd frOm tests performed on the first prototype pixel readout chip deigned at Fermilab, and a new readout architecture is described.
TL;DR: The Fermilab silicon strip readout chip (FSSR2) as discussed by the authors is the second version of the FSSR detector and was designed and fabricated in a 0.25 /spl mu/m CMOS technology for high radiation tolerance.
Abstract: The FSSR2 is the second release of the Fermilab silicon strip readout chip. The chip has been designed and fabricated in a 0.25 /spl mu/m CMOS technology for high radiation tolerance. The first release, simply called the FSSR, was a prototype version with many different analog front-end configurations. The best solution was chosen for the FSSR2 chip to optimize the noise, according to criteria discussed in this paper. The FSSR2 has been designed for the silicon strip detectors of the BTeV experiment. The chip services 128 strips and provides address, time and magnitude information for all hits. Several programmable features are included in FSSR2, such as an internal pulser, a baseline restorer and a signal peaking time selectable among four values in the range between 65 ns and 125 ns. The circuit design and the performances of FSSR2 are discussed in this paper.
TL;DR: In this article, the authors describe the testing of a prototype of an innovative displacement gauge, based on use of Fibre Bragg Grating (FBG) sensors, originally intended for monitoring repositioning of pixel vertex detectors in the BTeV experiment.
Abstract: In this paper we describe the testing of a prototype of an innovative displacement gauge, based on use of Fibre Bragg Grating (FBG) sensors. This displacement gauge, originally intended for monitoring repositioning of pixel vertex detectors in the BTeV experiment, is now proposed for CMS pixel alignment.
TL;DR: In this paper, a beam tagging system based on drift chambers with 160 μm resolution was used to measure relative electron beam momentum precisely at the U70 accelerator in Protvino, Russia.
Abstract: A beam line for electrons with energies in the range of 1– 45 GeV , low contamination of hadrons and muons and high intensity up to 10 6 per accelerator spill at 27 GeV was setup at U70 accelerator in Protvino, Russia. A beam tagging system based on drift chambers with 160 μm resolution was able to measure relative electron beam momentum precisely. The resolution σ p / p was 0.13% at 45 GeV where multiple scattering is negligible. This test beam setup provided a possibility to study properties of lead tungstate crystals (PbWO 4 ) for the BTeV experiment at Fermilab.
TL;DR: In this article, a ring imaging Cherenkov (RICH) detection system consisting of a 3m-long gaseous C 4 F 8 O radiator, a focusing mirror, and a photon detector array based on Hamamatsu multi-anode photomultiplier tubes was developed.
Abstract: We report on tests of a novel ring imaging Cherenkov (RICH) detection system consisting of a 3-m-long gaseous C 4 F 8 O radiator, a focusing mirror, and a photon detector array based on Hamamatsu multi-anode photomultiplier tubes. This system was developed to identify charged particles in the momentum range from 3 to 70 GeV/c for the BTeV experiment.