Latest NIKA Results and the NIKA-2 Project
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NIKA (New IRAM KID Arrays) is a dual-band imaging instrument installed at the IRAM (Institut de RadioAstronomie Millimetrique) 30-meter telescope at Pico Veleta (Spain). Two distinct Kinetic Inductance Detectors (KID) focal planes allow the camera to simultaneous image a field-of-view of about 2 arc-min in the bands 125 to 175 GHz (150 GHz) and 200 to 280 GHz (240 GHz). The sensitivity and stability achieved during the last commissioning Run in June 2013 allows opening the instrument to general observers. We report here the latest results, in particular in terms of sensitivity, now comparable to the state-of-the-art Transition Edge Sensors (TES) bolometers, relative and absolute photometry. We describe briefly the next generation NIKA-2 instrument, selected by IRAM to occupy, from 2015, the continuum imager/polarimeter slot at the 30-m telescope.
KeywordsKinetic inductance detectors Millimeter astronomy Superconducting detectors
This work has been partially funded by the Foundation Nanoscience Grenoble, the ANR under the contracts “MKIDS” and “NIKA”. This work has been partially supported by the LabEx FOCUS ANR-11-LABX-0013. This work has benefited from the support of the European Research Council Advanced Grant ORISTARS under the European Union’s Seventh Framework Program (Grant Agreement no. 291294). We acknowledge the crucial contributions of ex-members of the NIKA collaboration, in particular Loren Swenson, Markus Roesch, Angelo Cruciani, Julien Minet. We thank all the IRAM Granada staff for the excellent support before, during and after NIKA observations. The NIKA cryostat and the readout electronics have been fabricated by the Cryogenics and Electronics groups in Grenoble.
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