Details

Autor(en) / Beteiligte

• Angloher, G.
• Carniti, P.
• Cassina, L.
• Gironi, L.
• Gotti, C.
• Gütlein, A.
• Maino, M.
• Mancuso, M.
• Pagnanini, L.
• Pessina, G.
• Petricca, F.
• Pirro, S.
• Pröbst, F.
• Puig, R.
• Reindl, F.
• Schäffner, K.
• Schieck, J.
• Seidel, W.

Titel

Results from the first cryogenic NaI detector for the COSINUS project

Ist Teil von

• Journal of instrumentation, 2017-11, Vol.12 (11), p.P11007-P11007

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Recently there is a flourishing and notable interest in the crystalline scintillator material sodium iodide (NaI) as target for direct dark matter searches. This is mainly driven by the long-reigning contradicting situation in the dark matter sector: the positive evidence for the detection of a dark matter modulation signal claimed by the DAMA/LIBRA collaboration is (under so-called standard assumptions) inconsistent with the null-results reported by most of the other direct dark matter experiments. We present the results of a first prototype detector using a new experimental approach in comparison to conventional single-channel NaI scintillation light detectors: a NaI crystal operated as a scintillating calorimeter at milli-Kelvin temperatures simultaneously providing a phonon (heat) plus scintillation light signal and particle discrimination on an event-by-event basis. We evaluate energy resolution, energy threshold and further performance parameters of this prototype detector developed within the COSINUS R&D project.