Helmut Seifert

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Observations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05)(stat)(+0.09)(-0.09)(syst) x 10(6) cm(-2) s(-1) for a(More)
The Sudbury Neutrino Observatory (SNO) has measured day and night solar neutrino energy spectra and rates. For charged current events, assuming an undistorted 8B spectrum, the night minus day rate is 14.0%+/-6.3%(+1.5%)(-1.4%) of the average rate. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the nu(e) asymmetry is(More)
Mineralogical and chemical investigations of deposits from superheaters and economisers from a MSWI plant in Mannheim, Germany, lead to a classification system which provides information about the most critical parameters leading to fouling and corrosion. With the help of this classification system parameters like the geometry of boilers and the waste input(More)
Solar neutrinos from (8)B decay have been detected at the Sudbury Neutrino Observatory via the charged current (CC) reaction on deuterium and the elastic scattering (ES) of electrons. The flux of nu(e)'s is measured by the CC reaction rate to be straight phi(CC)(nu(e)) = 1.75 +/- 0.07(stat)(+0.12)(-0.11)(syst) +/- 0.05(theor) x 10(6) cm(-2) s(-1).(More)
When using catalytic flue gas cleaning, several flue gas compounds may influence oxidation reactions of hazardous volatile organic compounds, possibly leading to lower reaction rates and, thus, to an incomplete destruction. Experimental investigations were performed with regard to the influence of selected flue gas compounds, like hydrogen chloride, sulfur(More)
Sewage sludge quantities have grown continuously since the introduction of the European Directive (UWWTD 91/271/EEC) relating to the treatment of urban wastewater. In the present, most of the sewage sludge is combusted in single fuels incineration plants or is co-fired in waste incineration or coal power plants. The combustion of sewage sludge is a proven(More)
B. Aharmim,7 Q. R. Ahmad,22 S. N. Ahmed,17 R. C. Allen,4 T. C. Andersen,6 J. D. Anglin,13 G. Bühler,4 J. C. Barton,14,* E. W. Beier,15 M. Bercovitch,13 M. Bergevin,6,8 J. Bigu,7 S. D. Biller,14 R. A. Black,14 I. Blevis,5 R. J. Boardman,14 J. Boger,3,† E. Bonvin,17 M. G. Boulay,10,17 M. G. Bowler,14 T. J. Bowles,10 S. J. Brice,10,14,‡ M. C. Browne,10,22 T.(More)
The Sudbury Neutrino Observatory is a second generation water Cerenkov detector designed to determine whether the currently observed solar neutrino deecit is a result of neutrino oscillations. The detector is unique in its use of D 2 O as a detection medium, permitting it to make a solar modellindependent test of the neutrino oscillation hypothesis by(More)
Forschungszentrum Karlsruhe GmbH, Institut für Technische Chemie, Bereich Thermische Abfallbehandlung, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany Phone: + 49 7247 / 82 3146 Fax: + 49 7247 / 82 6549 e-mail: robert.mai@itc-tab.fzk.de (Primary Contact) Hans Leibold Forschungszentrum Karlsruhe GmbH, Institut für Technische Chemie,(More)