20,746 research outputs found
All Rise!
Topical issues met the dramatic arts in three innovative programs staged by the School of Law and local theaters. Real-life drama ensued in the racial tensions of Hairspray, death-penalty cases came to life in The Exonerated, and the arguments raged anew in Brown v. Board of Education
Women in the Boardroom: Stepping up to the Challenge
The Business Law Program examines an important trend in the post-Enron world: how women are changing corporate governance
Characterisation and calibration of a scintillating fibre detector with > 4000 multi-anode photomultiplier channels
In the Kaos spectrometer at the Mainz Microtron a high-resolution coordinate
detector for high-energy particles is operated. It consists of scintillating
fibres with diameters of 4000 multi-anode
photomultiplier channels. It is one of the most modern focal-plane detectors
for magnetic spectrometers world-wide. To correct variations in the detection
efficiency, caused by the different gains and the different optical
transmittances, a fully automated off-line calibration procedure has been
developed. The process includes the positioning of a radioisotope source
alongside the detector plane and the automated acquisition and analysis of the
detector signals. It was possible to characterise and calibrate each individual
fibre channel with a low degree of human interaction.Comment: Nucl. Instrum. Meth. A (2012
Observation of scattering and absorption centers in lead fluoride crystals
For the first time, lead fluoride is used as a fast and compact material in
electromagnetic calorimetry. Excellent optical and mechanical properties of the
pure Cherenkov crystals are necessary for the A4 collaboration to perform a
measurement of the nucleon's strange form factors. Visible scattering and
absorption centers as well as surface damages have been investigated to
characterize the quality of more than one thousand crystals. Besides,
transmittance measurements have been performed on all crystals to reveal
absorption bands produced by intrinsic or impurity related point-structure
defects. As a consequence, 89 crystals had to be replaced by the Chinese
manufacturer SICCAS.Comment: LaTeX, 6 pages, 6 figure
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