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1. Discrimination of recoil backgrounds in scintillating calorimeters

Author

Lang, R.F., Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., von Feilitzsch, F., Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., Kimmerle, M., Kraus, H., Lanfranchi, J.-C., Malek, M., McGowan, R., Mikhailik, V.B., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Pröbst, F., Roth, S., Rottler, K., Sailer, C., Schäffner, K., Schmaler, J., Scholl, S., Seidel, W., Stodolsky, L., Tolhurst, A.J.B., Usherov, I., and Westphal, W.

Published
2010
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2. Electron and gamma background in CRESST detectors

Author

Lang, R.F., Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., von Feilitzsch, F., Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., Kimmerle, M., Kraus, H., Lanfranchi, J.-C., Majorovits, B., Malek, M., McGowan, R., Mikhailik, V.B., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Pröbst, F., Roth, S., Rottler, K., Sailer, C., Schäffner, K., Schmaler, J., Scholl, S., Seidel, W., Stodolsky, L., Tolhurst, A.J.B., Usherov, I., and Westphal, W.

Published
2010
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3. Commissioning run of the CRESST-II dark matter search

Author

Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., von Feilitzsch, F., Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., Kimmerle, M., Kraus, H., Lanfranchi, J.-C., Lang, R.F., Majorovits, B., Malek, M., McGowan, R., Mikhailik, V.B., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Pröbst, F., Rau, W., Roth, S., Rottler, K., Sailer, C., Schäffner, K., Schmaler, J., Scholl, S., Seidel, W., Stodolsky, L., Tolhurst, A.J.B., Usherov, I., and Westphal, W.

Published
2009
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10. Dark-matter search with CRESST

Author

Westphal, W., Coppi, C., von Feilitzsch, F., Isaila, C., König, J., Potzel, W., Rau, W., Razeti, M., Stark, M., Wulandari, H., Angloher, G., Bavykina, I., Christ, P., Hauff, D., Ninković, J., Pantic, E., Petricca, F., Pröbst, F., Seidel, W., Stodolsky, L., Bauer, M., Jagemann, T., Jochum, J., Rottler, K., Scholl, S., Bucci, C., Cozzini, C., Henry, S., Kraus, H., Majorovits, B., McGowan, R., Mikhailik, V., Tolhurst, A.J.B., and Ramachers, Y.

Published
2006
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11. CRESST – status and future

Author

Kraus, H., Angloher, G., Bauer, M., Bavykina, I., Bucci, C., Christ, P., Ciemniak, C., Cozzini, C., Coppi, C., von Feilitzsch, F., Hauff, D., Henry, S., Imber, J., Isaila, C., Jagemann, Th., Jochum, J., Lanfranchi, J.-C., Lang, R., Majorovits, B., Malek, M., McGowan, R., Mikhailik, V., Ninkovic, J., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Pröbst, F., Ramachers, Y., Rau, W., Razeti, M., Rottler, K., Scholl, S., Seidel, W., Stark, M., Stodolsky, L., Tolhurst, A.J.B., Westphal, W., and Wulandari, H.

Published
2007
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12. EURECA — the European Future of Dark Matter Searches with Cryogenic Detectors

Author

Kraus, H., Bauer, M., Bavykina, I., Benoit, A., Blümer, J., Broniatowski, A., Brudanin, V., Burghart, G., Camus, P., Chantelauze, A., Chapellier, M., Chardin, G., Christ, P., Ciemniak, C., Coppi, C., De Jésus, M., De Lesquen, A., Deschamps, H., Di Stefano, P., Dumoulin, L., Eitel, K., von Feilitzsch, F., Fesquet, M., Gascon, J., Gerbier, G., Goldbach, C., Gros, M., Hauff, D., Henry, S., Horn, M., Imber, J., Isaila, C., Jochum, J., Juillard, A., Kimmerle, M., Lanfranchi, J.-C., Lemrani, R., Lubashevsky, A., Luca, M., Malek, M., Marnieros, S., McGowan, R., Mikhailik, V., Navick, X.-F., Niinikoski, T., Nollez, G., Pantic, E., Pari, P., Perevoshchikov, L., Petricca, F., Pfister, S., Potzel, W., Pröbst, F., Rau, W., Ritter, F., Rottler, K., Sanglard, V., Scholl, S., Schwamm, F., Seidel, W., Smolnikov, A., Stern, M., Teshima, M., Tolhurst, B., Westphal, W., Wikus, P., Wolf, J., and Yakushev, E.

Published
2007
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19. Results of the CRESST commissioning run 2007

Author

Angloher, G, Bauer, M, Bavykina, I, Bento, A, Brown, A, Bucci, C, Ciemniak, C, Coppi, C, Deuter, G, Von Feilitzsch, F, Hauff, D, Henry, S, Huff, P, Imber, J, Ingleby, S, Isaila, C, Jochum, J, Kiefer, M, Kimmerle, M, Kraus, H, Lanfranchi, J, Lang, R, Majorovits, B, Malek, M, and McGowan, R

Abstract

CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) is a low temperature experiment dedicated to the direct dark matter detection via nuclear recoil. It is located in Hall A of the Laboratori Nazionali del Gran Sasso, Italy. Scintillating CaWO4 crystals operated at a few mK are utilized as target forWIMPs (Weakly Interacting Massive Particles), which are expected to scatter predominantly on the heavy tungsten nuclei. As for background rejection, CRESST uses the phonon-light technique, where two different quantities of an interaction are recorded: the heat production in the CaWO4 crystal and the simultaneous emission of scintillation light, which is monitored by a second low-temperature detector, the light detector. The information provided by both detectors allows a powerful background discrimination on an event by event basis. After a major upgrade phase, CRESST-II has now successfully completed a commissioning run during 2007, the results of which are presented in this article.

Published
2016

20. Searching for dark matter with CRESST

Author

Kraus, H, Angloher, G, Bauer, M, Bavykina, I, Bento, A, Brown, A, Bucci, C, Ciemniak, C, Coppi, C, Deuter, G, Von Feilitzsch, F, Hauff, D, Henry, S, Huff, P, Imber, J, Ingleby, S, Isaila, C, Jochum, J, Kiefer, M, Kimmerle, M, Lanfranchi, J, Lang, R, Majorovits, B, Malek, M, and McGowan, R

Abstract

The CRESST II experiment is a dark matter search using cryogenic phonon-scintillation detectors, aiming to detect WIMP dark matter particle interactions. The detector consists of individual, modular and scintillating (CaWO4 or ZnWO4) target crystals, each equipped with a phonon sensor for precise determination of the energy deposited in the crystals. Each module is further equipped with a separate cryogenic scintillation light detector, allowing event-by-event background discrimination. An extended commissioning run during 2007 has set an upper limit on theWIMP-nucleon scattering cross section. Attention is currently focussed on the interpretation of a few remaining nuclear recoils candidate events.

Published
2016

24. Scintillator Non-Proportionality and Gamma Quenching in CaWO4

Author

Rafael Lang, Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., Feilitzsch, F., Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., Kimmerle, M., Kraus, H., Lanfranchi, J. -C, Malek, M., Mcgowan, R., Mikhailik, V. B., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Probst, F., Roth, S., Rottler, K., Sailer, C., Schaffner, K., Schmaler, J., Scholl, S., Seidel, W., Stodolsky, L., Tolhurst, A. J. B., Usherov, I., and Westphal, W.

Subjects
Physics::Instrumentation and Detectors, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

We measure and explain scintillator non-proportionality and gamma quenching of CaWO4 at low energies and low temperatures. Phonons that are created following an interaction in the scintillating crystal at temperatures of 15mK are used for a calorimetric measurement of the deposited energy, and the scintillation light is measured with a separate cryogenic light detector. Making use of radioactivity intrinsic to the scintillating crystal, the scintillator non-proportionality is mapped out to electron energies, 5 pages, 5 figures

Published
2009

25. Proceedings of the 1st International Workshop 'Radiopure Scintillators for EURECA' (RPScint'2008)

Author

Armengau, E., Bauer, M., Bavykina, I., Benoit, A., Bento, A., Blumer, J., Bornschein, L., Broniatowski, A., Burghart, G., Camus, P., Chantelauze, A., Chapellier, M., Chardin, G., Ciemniak, C., Coppi, C., Coron, N., Crauste, O., Danevich, F. A., Daw, E., Defay, X., De Jesus, M., de Marcillac, P., Deuter, G., Domange, J., Di Stefano, P., Drexlin, G., Dubovik, A. M., Dumoulin, L., Eitel, K., von Feilitzsch, F., Filosofov, D., Gandit, P., Garcia, E., Gascon, J., Gerbier, G., Gironnet, J., Glebovsky, V. G., Godfrin, H., Grigoriev, D., Grinyov, B. V., Grohmann, S., Gros, M., Hannewald, M., Hauff, D., Haug, F., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Juillard, A., Kiefer, M., Kimmerle, M., Kluck, H., Kobychev, V. V., Kovtun, G. P., Kozlov, V., and Kraus, H.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

Workshop RPSCINT'2008 was organized in Kyiv (Ukraine) on 9th and 10th September 2008. The idea was to bring together physicists, chemists, crystal scintillator experts and manufacturers to discuss the requirements of low-count rate experiments, in particular the required radiopurity and scintillation properties; selection and screening of input materials; purification of materials; raw compound preparation; crystal growing, annealing and handling; test of crystals; search for and development of new scintillating materials. Some contributions to the RPSCINT 2008 workshop are presented in these proceedings., 77 pages

Published
2009

26. Searching for dark matter with CRESST

Author

Kraus, H, Angloher, G, Bauer, M, Bavykina, I, Bento, A, Brown, A, Bucci, C, Ciemniak, C, Coppi, C, Deuter, G, Von Feilitzsch, F, Hauff, D, Henry, S, Huff, P, Imber, J, Ingleby, S, Isaila, C, Jochum, J, Kiefer, M, Kimmerle, M, Lanfranchi, J-C, Lang, RF, Majorovits, B, Malek, M, McGowan, R, Mikhailik, VB, Pantic, E, Petricca, F, Pfister, S, Potzel, W, Pröbst, F, Roth, S, Rottler, K, Sailer, C, Schäffner, K, Schmaler, J, Scholl, S, Seidel, W, Von Sivers, M, Stodolsky, L, Strandhagen, C, Strauss, R, Tolhurst, AJB, Usherov, I, and Westphal, W

Subjects
Physics::Instrumentation and Detectors, Astrophysics::Instrumentation and Methods for Astrophysics
Abstract

The CRESST II experiment is a dark matter search using cryogenic phonon-scintillation detectors, aiming to detect WIMP dark matter particle interactions. The detector consists of individual, modular and scintillating (CaWO4 or ZnWO4) target crystals, each equipped with a phonon sensor for precise determination of the energy deposited in the crystals. Each module is further equipped with a separate cryogenic scintillation light detector, allowing event-by-event background discrimination. An extended commissioning run during 2007 has set an upper limit on theWIMP-nucleon scattering cross section. Attention is currently focussed on the interpretation of a few remaining nuclear recoils candidate events.

Published
2009

27. Results of the CRESST commissioning Run 2007

Author

Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., Feilitzsch, F. Von, Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., Kimmerle, M., Kraus, H., Lanfranchi, J.-C., Lang, R. F., Majorovits, B., Malek, M., McGowan, R., Mikhailik, V. B., Pantic, E., Petricca, F., Pfister, S., Potzel, W., Proebst, F., Rau, W., Roth, S., Rottler, K., Sailer, C., Schaeffner, K., Schmaler, J., Scholl, S., Seidel, W., Stodolsky, L., Tolhurst, A.J.B., Usherov, I., and Physik, W. Westphal Muenchen MPI Phys.

Subjects
Physics::Instrumentation and Detectors, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Nuclear Experiment
Abstract

Contribution to Proceedings, Proc. of PATRAS08; DESY-PROC-2008-02; ISSN 1435-8077

Published
2009

28. EURECA – setting the scene for scintillators

Author

Kraus, H., Eric Armengaud, Bauer, M., Bavykina, I., Benoit, A., Bento, A., Blümer, J., Bornschein, L., Broniatowski, A., Burghart, G., Camus, P., Chantelauze, A., Chapellier, M., Chardin, G., Ciemniak, C., Coppi, C., Coron, N., Crauste, O., Danevich, F. A., Daw, E., Defay, X., Jésus, M., Marcillac, P., Deuter, G., Domange, J., Stefano, P. Di, Drexlin, G., Dumoulin, L., Eitel, K., Feilitzsch, F., Filosofov, D., Gandit, P., Garcia, E., Gascon, J., Gerbier, G., Gironnet, J., Godfrin, H., Grohmann, S., Gros, M., Hannewald, M., Hauff, D., Haug, F., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Juillard, A., Kiefer, M., Kimmerle, M., Kluck, H., Kobychev, V. V., Kozlov, V., Kudovbenko, V. M., Kudryavtsev, V. A., Lachenmaier, T., Lanfranchi, J. -C, Lang, R. F., Loaiza, P., Lubashevsky, A., Malek, M., Marnieros, S., Mcgowan, R., Mikhailik, V., Monfardini, A., Navick, X. -F, Niinikoski, T., Nikolaiko, A. S., Oberauer, L., Olivieri, E., Ortigoza, Y., Pantic, E., Pari, P., Paul, B., Perinic, G., Petricca, F., Pfister, S., Pobes, C., Poda, D. V., Podviyanuk, R. B., Polischuk, O. G., Potzel, W., Pröbst, F., Puimedon, J., Robinson, M., Roth, S., Rottler, K., Rozov, S., Sailer, C., Salinas, A., Sanglard, V., Sarsa, M. L., Schäffner, K., Scholl, S., Scorza, S., Seidel, W., Semikh, S., Smolnikov, A., Stern, M., Stodolsky, L., Teshima, M., Tomasello, V., Torrento, A., Torres, L., Tretyak, V. I., Usherov, I., Verdier, M. A., Villar, J. A., Wolf, J., Yakushev, E., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Cryogénie (Cryo), Institut Rayonnement Matière de Saclay (IRAMIS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Ultra-basses températures (UBT), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (NEEL - HELFA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Ultra-basses températures (NEEL - UBT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Cryo - Cryogénie, UBT - Ultra-basses températures, Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Girod, Dominique

Subjects
[PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], [PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.ASTR.GA] Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract

voir fichier complet des proceedings; International audience; EURECA (European Underground Rare Event Calorimeter Array) will be an astro-particle physics facility aiming to directly detect galactic dark matter. TheLaboratoire Souterrain de Modane has been selected as host laboratory. TheEURECA collaboration concentrates effort on cryogenic detector research inEurope into a single facility by bringing together colleagues from CRESST,EDELWEISS, ROSEBUD and additional new member institutes. EURECA will use atarget mass of up to one ton for exploring WIMP-nucleon scalar scattering crosssections in the region of 10 −9 – 10 −10 picobarn. A major advantage of EURECAis the planned use of more than just one target material (multi targetexperiment for WIMP identification).

Published
2008

36. Nonvital tooth bleaching: case report

Author

Bortolini, Sergio, Franchi, Irene, Natali, Alfredo, Coppi, C., Paiardi, Maurizio, and Consolo, Ugo

Subjects
tooth bleaching, Nonvital tooth
Published
2007

44. EURECA -- the European future of cryogenic dark matter searches

Author

Kraus, H, Bauer, M, Benoit, A, Bluemer, J, Broniatowski, A, Camus, P, Chantelauze, A, Chapellier, M, Chardin, G, Christ, P, Coppi, C, De Jesus, M, De Lesquen, A, Deschamps, H, Di Stefano, P, Dumoulin, L, Eitel, K, von Feilitzsch, F, Fesquet, M, Gascon, J, Gerbier, G, Goldbach, C, Gros, M, Hauff, D, Henry, S, Horn, M, Isaila, C, Kimmerle, M, Jochum, J, Juillard, A, Lemrani, R, Luca, M, Marnieros, S, McGowan, R, Mikhailik, V, Navick, X-F, Niinikoski, T, Nollez, G, Pantic, E, Pari, P, Petricca, F, Potzel, W, Proebst, F, Rau, W, Ritter, F, Rottler, K, Scholl, S, Seidel, W, Sanglard, V, Stern, M, Schwamm, F, Teshima, M, Tolhurst, B, Westphal, W, Wikus, P, Wolf, J, Bottino, A, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Rayonnement Matière de Saclay (IRAMIS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
Physics, History, Particle physics, 010308 nuclear & particles physics, Dark matter, EDELWEISS, 7. Clean energy, 01 natural sciences, Computer Science Applications, Education, Multi target, WIMP, 0103 physical sciences, European Underground Rare Event Calorimeter Array, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, ComputingMilieux_MISCELLANEOUS
Abstract

EURECA (European Underground Rare Event Calorimeter Array) is a new project, searching for dark matter, with largely the present groups of the CRESST and EDELWEISS experiments and already a few new groups. The aim is to explore scalar cross sections in the 10(-9) - 10(-10) pico-barn region with a target mass of up to one tonne. A major advantage of EURECA is our planned use of more that just one target material (multi target experiment for WIMP identification). In preparation for this large-scale experiment, RandD for EURECA is provided through the current phases of CRESST and EDELWEISS.

Published
2005

49. Status of the CRESST Dark Matter Search.

Author

Schmaler, J., Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., von Feilitzsch, F., Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kiefer, M., and Kimmerle, M.

Subjects
DARK matter, PHONONS, DETECTORS, RADIOACTIVITY, ELECTRONS
Abstract

The CRESST experiment aims for a detection of dark matter in the form of WIMPs. These particles are expected to scatter elastically off the nuclei of a target material, thereby depositing energy on the recoiling nucleus. CRESST uses scintillating CaWO4 crystals as such a target. The energy deposited by an interacting particle is primarily converted to phonons which are detected by transition edge sensors. In addition, a small fraction of the interaction energy is emitted from the crystals in the form of scintillation light which is measured in coincidence with the phonon signal by a separate cryogenic light detector for each target crystal. The ratio of light to phonon energy permits the discrimination between the nuclear recoils expected from WIMPs and events from radioactive backgrounds which primarily lead to electron recoils. CRESST has shown the success of this method in a commissioning run in 2007 and, since then, further investigated possibilities for an even better suppression of backgrounds. Here, we report on a new class of background events observed in the course of this work. The consequences of this observation are discussed and we present the current status of the experiment. [ABSTRACT FROM AUTHOR]

Published
2009
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50. Composite CaWO4 Detectors for the CRESST-II Experiment.

Author

Kiefer, M., Angloher, G., Bauer, M., Bavykina, I., Bento, A., Brown, A., Bucci, C., Ciemniak, C., Coppi, C., Deuter, G., Feilitzsch, F. von, Hauff, D., Henry, S., Huff, P., Imber, J., Ingleby, S., Isaila, C., Jochum, J., Kimmerle, M., and Kraus, H.

Subjects
THERMOMETERS, DETECTORS, ELASTIC scattering, TUNGSTEN, THIN films
Abstract

CRESST-II, standing for Cryogenic Rare Events Search with Superconducting Thermometers phase II, is an experiment searching for Dark Matter. In the LNGS facility in Gran Sasso, Italy, a cryogenic detector setup is operated in order to detect WIMPs by elastic scattering off nuclei, generating phononic lattice excitations and scintillation light. The thermometers used in the experiment consist of a tungsten thin-film structure evaporated onto the CaWO4 absorber crystal. The process of evaporation causes a decrease in the scintillation light output. This, together with the need of a big-scale detector production for the upcoming EURECA experiment lead to investigations for producing thermometers on smaller crystals which are glued onto the absorber crystal. In our Run 31 we tested composite detectors for the first time in the Gran Sasso setup. They seem to produce higher light yields as hoped and could provide an additional time based discrimination mechanism for low light yield clamp events. [ABSTRACT FROM AUTHOR]

Published
2009
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