177,607 research outputs found
Streamer suppression with SF6 in RPCs operated in avalanche mode
No full textWe show that the addition of small amounts of sulphur hexafluoride, SF6, to the present ATLAS baseline gas mixture C2H2F4/C4H10 has a very strong effect in suppressing the avalanche-to-streamer transition. An RPC of 50 x 50 cm(2) area, 2 mm gas gap was operated in pure avalanche, streamer-free mode in a voltage range of about 1 kV. The results of the test suggest that the observed fast signal could be interpreted as the sum of contributions of a number of primary saturated avalanches. (C) 1998 Elsevier Science B.V. All rights reserved
OBSERVATION OF TeV GAMMA RAYS FROM THE UNIDENTIFIED SOURCE HESS J1841-055 WITH THE ARGO-YBJ EXPERIMENT
No full textProc. VI Int. Workshop: Resistive Plate Chambers and Related Detectors
No full textCONTRIBUTED AND INVITED PAPER TO THE WORKSHOP CONCERNING THE PHYISCS OF THE DETECTOR, THE SIMULATIONS, SEVERAL TOPICS CONCERNING r&d, THE PERFORMANCEAND THE ELECTRONIC
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
A search for heavy leptons with e+e- colliding beams
No full textA search for heavy leptons has been carried out with the Frascati e+e− storage ring by looking for (μe) pairs. A lower mass limit of 1.15 GeV, with 95% confidence level, is obtained for various types of heavy leptons
RPC'99
No full textseveral contributed and invited papers concerning the physics, the performances and the electronics related to the RPC detecto
A Method Allowing Long Emulsion Exposures To High-energy Neutrinos Also In The Presence Of Intense Time Uncorrelated Background
No full textSearches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions
No full textResistive plate chambers and related detectors
No full textContributed and invited papers on issues concerning the performance, the quality and the timing of the Resistive Plate Chamber Detectors
Resistive plate chambers and related detectors.
No full textcontributions and invited papers on issues related to the gas detector
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