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A dual-band millimeter-wave kinetic inductance camera for the IRAM 30-meter telescope | | A. Monfardini
; A. Benoit
; A. Bideaud
; L. J. Swenson
; M. Roesch
; F. X. Desert
; S. Doyle
; A. Endo
; A. Cruciani
; P. Ade
; A. M. Baryshev
; J. J. A. Baselmans
; O. Bourrion
; M. Calvo
; P. Camus
; L. Ferrari
; C. Giordano
; C. Hoffmann
; S. Leclercq
; J. Macias-Perez9
; P. Mauskopf
; K. F. Schuster
; C. Tucker
; C. Vescovi
; S.J.C. Yates
; | | Date: |
4 Feb 2011 | | Abstract: | Context. The Neel IRAM KIDs Array (NIKA) is a fully-integrated measurement
system based on kinetic inductance detectors (KIDs) currently being developed
for millimeter wave astronomy. In a first technical run, NIKA was successfully
tested in 2009 at the Institute for Millimetric Radio Astronomy (IRAM) 30-meter
telescope at Pico Veleta, Spain. This prototype consisted of a 27-42 pixel
camera imaging at 150 GHz. Subsequently, an improved system has been developed
and tested in October 2010 at the Pico Veleta telescope. The instrument
upgrades included dual-band optics allowing simultaneous imaging at 150 GHz and
220 GHz, faster sampling electronics enabling synchronous measurement of up to
112 pixels per measurement band, improved single-pixel sensitivity, and the
fabrication of a sky simulator to replicate conditions present at the
telescope. Results. The new dual-band NIKA was successfully tested in October
2010, performing in-line with sky simulator predictions. Initially the sources
targeted during the 2009 run were re-imaged, verifying the improved system
performance. An optical NEP was then calculated to be around 2 dot 10-16
W/Hz1/2. This improvement in comparison with the 2009 run verifies that NIKA is
approaching the target sensitivity for photon-noise limited ground-based
detectors. Taking advantage of the larger arrays and increased sensitivity, a
number of scientifically-relevant faint and extended objects were then imaged
including the Galactic Center SgrB2(FIR1), the radio galaxy Cygnus A and the
NGC1068 Seyfert galaxy. These targets were all observed simultaneously in the
150 GHz and 220 GHz atmospheric windows. | | Source: | arXiv, 1102.0870 | | Services: | Forum | Review | PDF | Favorites | |
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