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| Content Provider | Springer Nature Link |
|---|---|
| Author | Beeman, J. W. Bellini, F. Benetti, P. Cardani, L. Casali, N. Chiesa, D. Clemenza, M. Dafinei, I. Domizio, S. Ferroni, F. Gironi, L. Giuliani, A. Gotti, C. Mai, M. Nagorny, S. S. Nisi, S. nes, C. Pagnanini, L. Pattavina, L. Pessina, G. Piper, G. Pirro, S. Previtali, E. Rusconi, C. Schäffner, K. Tomei, C. Vignati, M. |
| Copyright Year | 2016 |
| Abstract | In the view of exploring the inverted hierarchy region future experiments investigating the neutrinoless double beta decay have to demand for detectors with excellent energy resolution and zero background in the energy region of interest. Cryogenic scintillating bolometers are very suitable detectors for this task since they provide particle discrimination: the simultaneous detection of the phonon and light signal allows us to identify the interacting type of particle and thus guarantees a suppression of $$\alpha $$ -induced backgrounds, the key-issue for next-generation tonne-scale bolometric experiments. The LUCIFER project aims at running the first array of enriched scintillating Zn $$^{\text {82}}$$ Se bolometers (total mass of about 8kg of $$^{\text {82}}$$ Se) with a background level as low as 10 $$^{\text {--3}}$$ counts/(keV kg y) in the energy region of interest. The main effort is currently focused on the finalization of the crystal growth procedure in order to achieve high quality Zn $$^{\text {82}}$$ Se crystals both in terms of radiopurity and bolometric properties. We present results from tests of such crystals operated at mK temperatures which demonstrate the excellent background rejection capabilities of this detection approach towards a background-free demonstrator experiment. Besides, the high purity of the enriched $$^{\text {82}}$$ Se material allows us to establish the most stringent limits on the half-life of the double beta decay of $$^{\text {82}}$$ Se on excited levels. |
| Starting Page | 852 |
| Ending Page | 858 |
| Page Count | 7 |
| File Format | |
| ISSN | 00222291 |
| Journal | Journal of Low Temperature Physics |
| Volume Number | 184 |
| Issue Number | 3-4 |
| e-ISSN | 15737357 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-01-06 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Double beta decay Cryogenic detector Scintillating bolometer Particle identification Zinc selenide Condensed Matter Physics Characterization and Evaluation of Materials Magnetism, Magnetic Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Condensed Matter Physics Materials Science |
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