1. Developments and improvements of radiopure ZnWO$_{4}$ anisotropic scintillators
- Author
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Belli, P., Bernabei, R., Cappella, F., Caracciolo, V., Cerulli, R., Cherubini, N., Danevich, F. A., Incicchitti, A., Kasperovych, D. V., Merlo, V., Piccinelli, E., Polischuk, O. G., and Tretyak, V. I.
- Subjects
Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
The ZnWO$_4$ is an anisotropic crystal scintillator; for its peculiar characteristics, it is a very promising detector to exploit the so-called directionality approach in the investigation of those Dark Matter (DM) candidates inducing nuclear recoils. Recently, in the framework of the ADAMO project, an R\&D to develop high quality and ultra-radiopure ZnWO$_4$ crystal scintillators has been carried out. In the present paper the measurements to study the anisotropic response of a ZnWO$_4$ to $\alpha$ particles and to nuclear recoils induced by neutron scattering are reported. Monochromatic neutrons have been produced by a neutron generator at ENEA-CASACCIA. The quenching factor values for nuclear recoils along different crystallographic axes have been determined for three different nuclear recoils energies. These results open the possibility to realize a pioneer experiment to investigate the above mentioned DM candidates by means of the directionality., Comment: Proceedings of the IPRD 2019 Conference, 10 pages, 7 figures, accepted for publication in JINST
- Published
- 2020
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