Quenching factor measurement for by neutron scattering

Coppi, C.; Feilitzsch, F. von; Isaila, C.; Jagemann, T.; Jochum, J.; Konig, Joshua Leon; Lachenmaier, T.; Lanfranchi, J.‐C.; Potzel, W.; Rau, W.; Stark, M.; Wernicke, D.; Westphal, W.

doi:10.1016/j.nima.2005.12.020

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…Practically identical values are obtained in the 40 µs and 50 µs time window measurements. Figure 14 also includes results from neutron scattering experiment at room temperature [16] and the values measured with a cryogenic detector at 7 mK [3]. The presented data for oxygen and the neutron scattering result are in reasonable agreement.…”

Section: Quenching Factor Resultssupporting

confidence: 54%

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New technique for the measurement of the scintillation efficiency of nuclear recoils

Ninković

Christ

Angloher

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Quenching Factor Resultssupporting

confidence: 54%

“…The discussion is given in the text. The neutron scattering result (shown as ×) also measured at room temperature is from [16]. The circles are from a measurement with a cryogenic detector at a temperature of 7 mK.…”

Section: Discussionmentioning

confidence: 99%

New technique for the measurement of the scintillation efficiency of nuclear recoils

Ninković

Christ

Angloher

et al. 2006

Nuclear Instruments and Methods in Physics Research Section A:

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“…Experiments combining both above variants are under way [106]. Measuring the recoil energy via the cryogenic phonon detector as well as the angle of the scattered neutron and its time-of-flight gives redundant information which helps to reduce systematic errors.…”

Section: Light Quenchingmentioning

confidence: 99%

Search for Dark Matter with CRESST

Lang,

Seidel

2009

Preprint

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The search for direct interactions of dark matter particles remains one of the most pressing challenges of contemporary experimental physics. A variety of different approaches is required to probe the available parameter space and to meet the technological challenges. Here, we review the experimental efforts towards the detection of direct dark matter interactions using scintillating crystals at cryogenic temperatures. We outline the ideas behind these detectors and describe the principles of their operation. Recent developments are summarized and various results from the search for rare processes are presented. In the search for direct dark matter interactions, the CRESST-II experiment delivers competitive limits, with a sensitivity below 5 × 10 −7 pb on the coherent WIMPnucleon cross section.

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“…This can be achieved by measuring the quenching of the scintillation light with respect to the recoiling nucleus. There are several approaches to measure the quenching factors for the elements in CaWO 4 [3,4,5,6]. In this article a neutron scattering facility, set up at the Maier-Leibnitz-Accelerator-Laboratory (MLL), using a pulsed monochromatic neutron beam of 11 MeV to measure quenching factors at mK temperatures is described.…”

Section: Introductionmentioning

confidence: 99%

Neutron scattering facility for characterization of CRESST and EURECA detectors at mK temperatures

Lanfranchi¹,

Ciemniak²,

Coppi³

et al. 2009

Optical Materials

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CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) is an experiment located at the Gran Sasso underground laboratory and aimed at the direct detection of dark matter in the form of WIMPs. The setup has just completed a one year commissioning run in 2007 and is presently starting a physics run with an increased target mass. Scintillating CaWO4 single crystals, operated at temperatures of a few millikelvin, are used as target to detect the tiny nuclear recoil induced by a WIMP. The powerful background identification and rejection of α, e − and γ events is realized via the simultaneous measurement of a phonon and a scintillation signal generated in the CaWO4 crystal. However, neutrons could still be misidentified as a WIMP signature. Therefore, a detailed understanding of the individual recoil behaviour in terms of phonon generation and scintillation light emission due to scattering on Ca, O or W nuclei, respectively, is mandatory. The only setup which allows to perform such measurements at the operating temperature of the CRESST detectors has been installed at the Maier-Leibnitz-Accelerator Laboratory in Garching and is presently being commissioned. The design of this neutron scattering facility is such that it can also be used for other target materials, e.g. ZnWO4, PbWO4 and others as foreseen in the framework of the future multitarget tonne-scale experiment EURECA (European Underground Rare Event Calorimeter Array).

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Quenching factor measurement for by neutron scattering

Cited by 6 publications

References 3 publications

New technique for the measurement of the scintillation efficiency of nuclear recoils

New technique for the measurement of the scintillation efficiency of nuclear recoils

Search for Dark Matter with CRESST

Neutron scattering facility for characterization of CRESST and EURECA detectors at mK temperatures

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