Particle discrimination in a NaI crystal using the COSINUS remote TES design

The COSINUS direct dark matter experiment situated at Laboratori Nazionali del Gran Sasso in Italy is set to investigate the nature of the annually modulating signal detected by the DAMA/LIBRA experiment. COSINUS has already demonstrated that sodium iodide crystals can be operated at mK temperature as cryogenic scintillating calorimeters using transition edge sensors, despite the complication of handling a hygroscopic and low melting point material. With results from a new COSINUS prototype, we show that particle discrimination on an event-by-event basis in NaI is feasible using the dual-channel readout of both phonons and scintillation light. The detector was mounted in the novel remoTES design and operated in an above-ground facility for 9.06 g$\cdot$d of exposure. With a 3.7 g NaI crystal, e$^-$/$\gamma$ events could be clearly distinguished from nuclear recoils down to the nuclear recoil energy threshold of 15 keV.Comment: 7 pages, 9 figure

Holidays under the hegemony of hyper-connectivity: getting away, but unable to escape?

Holidays have been imagined as occasions of escape and liminal leisure. This conceptualisation requires re-evaluation as a consequence of the widespread adoption of portable communication devices (smartphones) and the use of Web 2.0 interactive platforms (social media). Studies suggest that the gratifications of contact with the ‘other’, and the 10 enjoyment of the licence associated with the liminal condition, are compromised by endemic contact with the domicile. An analysis draws on the work of Heidegger and Althusser, and is supported by insights from Foucault, Arendt and Lacan. It is argued that users are ‘enframed’ and subjected by their devices. This re-imagining is representative of an 15 evolving change in the human condition, of which the compromising of tourism-as-escape is but one manifestation