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THE FIRST LIMITS ON THE ULTRA-HIGH ENERGY NEUTRINO FLUENCE FROM GAMMA-RAY BURSTS

The Astrophysical Journal American Astronomical Society 736:1 (2011) 50

Authors:

AG Vieregg, K Palladino, P Allison, BM Baughman, JJ Beatty, K Belov, DZ Besson, S Bevan, WR Binns, C Chen, P Chen, JM Clem, A Connolly, M Detrixhe, D De Marco, PF Dowkontt, M DuVernois, PW Gorham, EW Grashorn, B Hill, S Hoover, M Huang, MH Israel, A Javaid, KM Liewer, S Matsuno, BC Mercurio, C Miki, M Mottram, J Nam, RJ Nichol, A Romero-Wolf, L Ruckman, D Saltzberg, D Seckel, GS Varner, Y Wang
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Combined Limits on WIMPs from the CDMS and EDELWEISS Experiments

(2011)

Authors:

CDMS, EDELWEISS Collaborations, :, Z Ahmed, DS Akerib, E Armengaud, S Arrenberg, C Augier, CN Bailey, D Balakishiyeva, L Baudis, DA Bauer, A Benoît, L Bergé, J Blümer, PL Brink, A Broniatowski, T Bruch, V Brudanin, R Bunker, B Cabrera, DO Caldwell, B Censier, M Chapellier, G Chardin, F Charlieux, J Cooley, P Coulter, GA Cox, P Cushman, M Daal, X Defay, M De Jesus, F DeJongh, PCF Di Stefano, Y Dolgorouki, J Domange, L Dumoulin, MR Dragowsky, K Eitel, S Fallows, E Figueroa-Feliciano, J Filippini, D Filosofov, N Fourches, J Fox, M Fritts, J Gascon, G Gerbier, J Gironnet, SR Golwala, M Gros, J Hall, R Hennings-Yeomans, S Henry, SA Hertel, S Hervé, D Holmgren, L Hsu, ME Huber, A Juillard, O Kamaev, M Kiveni, H Kluck, M Kos, V Kozlov, H Kraus, VA Kudryavtsev, SW Leman, S Liu, P Loaiza, R Mahapatra, V Mandic, S Marnieros, C Martinez, KA McCarthy, N Mirabolfathi, D Moore, P Nadeau, X-F Navick, H Nelson, C Nones, RW Ogburn, E Olivieri, P Pari, L Pattavina, B Paul, A Phipps, M Pyle, X Qiu, W Rau, A Reisetter, Y Ricci, M Robinson, S Rozov, T Saab, B Sadoulet, J Sander, V Sanglard, B Schmidt, RW Schnee, S Scorza, DN Seitz, S Semikh, B Serfass, KM Sundqvist, M Tarka, AS Torrento-Coello, L Vagneron, M-A Verdier, RJ Walker, P Wikus, E Yakushev, S Yellin, J Yoo, BA Young, J Zhang
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Thermal structural properties of calcium tungstate

Journal of Applied Crystallography 44:2 (2011) 319-326

Authors:

A Senyshyn, M Hoelzel, T Hansen, L Vasylechko, V Mikhailik, H Kraus, H Ehrenberg

Abstract:

The results of in situ temperature-resolved powder diffraction studies of CaWO4 scheelite using both synchrotron radiation and neutron scattering are reported. The studies performed over a broad temperature range of 5-1773 K confirm the scheelite type of structure for calcium tungstate over the whole temperature range. The anisotropy of thermal expansion in calcium tungstate as well as the rigidity of WO4 complexes have been analysed in terms of bond distances, interatomic angles and anisotropic displacement parameters. The WO4 2- complex anions showed a remarkable robustness in the whole studied temperature range, thus pointing out that the layered structure formed by two-dimensional CsCl-type arrangements of Ca cations and WO4 complexes is the primary reason for the anisotropy of thermal expansion in calcium tungstate. © 2011 International Union of Crystallography Printed in Singapore - all rights reserved.
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Final results of the EDELWEISS-II WIMP search using a 4-kg array of cryogenic germanium detectors with interleaved electrodes

(2011)

Authors:

EDELWEISS Collaboration, E Armengaud, C Augier, A Benoît, L Bergé, J Blümer, A Broniatowski, V Brudanin, B Censier, G Chardin, M Chapellier, F Charlieux, P Coulter, GA Cox, X Defay, M De Jesus, Y Dolgorouki, J Domange, L Dumoulin, K Eitel, D Filosofov, N Fourches, J Gascon, G Gerbier, J Gironnet, M Gros, S Henry, S Hervé, A Juillard, H Kluck, V Kozlov, H Kraus, VA Kudryavtsev, P Loaiza, S Marnieros, X-F Navick, C Nones, E Olivieri, P Pari, L Pattavina, B Paul, M Robinson, S Rozov, V Sanglard, B Schmidt, S Scorza, S Semikh, A-S Torrento-Coello, L Vagneron, M-A Verdier, RJ Walker, E Yakushev
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Effect of recrystallisation on the radioactive contamination of CaWO 4 crystal scintillators

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 631:1 (2011) 44-53

Authors:

FA Danevich, IK Bailiff, VV Kobychev, H Kraus, M Laubenstein, P Loaiza, VB Mikhailik, SS Nagorny, AS Nikolaiko, S Nisi, IM Solsky, G Warot

Abstract:

Minimising intrinsic radioactivity of crystal scintillators is of particular importance for experiments searching for rare events. We studied the impact of the crystal production process (recrystallisation) on the level of radioactive contamination of CaWO4 crystal scintillators. Several samples of single crystal scintillators were produced using the recrystallisation procedure. It is shown that this has a significant effect on the radioactive contamination of the crystals. Depending on the stage of recrystallisation the activity due to 210Po (product of 210Pb decay) varies in the range 0.031.32 Bq kg-1 while the activity of 238U varies from 0.04 to 0.33 Bq kg-1. We found that uranium is rejected by the crystal with a segregation coefficient ≈0.3. The improvement in radiopurity of CaWO4 by one order of magnitude due to recrystallisation has been demonstrated. The additional benefit of this process is the improvement in the energy resolution. A programme to develop radiopure CaWO4 crystal scintillators is discussed briefly. © 2010 Elsevier B.V. All rights reserved.
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