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SUMMARY:The CAMbridge Emission Line Surveyor (CAMELS) - Chris Thomas & Sta
 fford Withington (Quantum Sensors\, Cavendish Laboratory)
DTSTART:20140603T153000Z
DTEND:20140603T163000Z
UID:TALK51971@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:   There is significant interest in sub-millimetre and far-inf
 rared astronomy in ‘on-chip’ spectrometers\, where dispersion is achie
 ved using a signal-frequency filter bank integrated onto the same chip as 
 the detectors.  On-chip spectrometers realised using Kinetic Inductance De
 tectors (KIDs) – a type of ultrasensitive\, easily multiplexed\, superco
 nducting detector – are expected to allow the realisation of large forma
 t imaging arrays where each pixel is also capable of wide-band\, medium re
 solution\, spectroscopy.  This is seen as revolutionary technology for gal
 actic surveys\, Cosmic Microwave Background (CMB) studies and intensity ma
 pping in astronomy\, and may also be useful for earth observation and atmo
 spheric science.  In addition\, on-chip spectrometers are more compact and
  rugged than their competing technologies\, making them ideally suited for
  balloon and space-borne missions.\n   In this talk we will describe the G
 reen Land Telescope (GLT) and our work on the CAMbridge Emission Line Surv
 eyor (CAMELS)\, a pathfinder instrument that will demonstrate on-chip spec
 trometer technology operationally.  CAMELS will cover the frequency range 
 103-114.7 GHz at a resolution of R=3000\, with the primary science target 
 being 13CO(1-0) and 12CO(1-0) line emission from galaxies at redshift 0.00
 5-0.12.  CAMELS will be operated on the GLT during its commissioning phase
  at Thules Air Force Base\, in collaboration with the Harvard Smithsonian 
 Center for Astrophysics.  Much of the current work on on-chip spectrometer
 s is focused on the technological aspects of the filter banks.  However\, 
 a major driver for CAMELS is to understand how to make science grade obser
 vations with this technology\, i.e. under the idiosyncrasies of operating 
 KID spectrometers at a telescope and how to calibrate the flux and frequen
 cy response.\n
LOCATION:Sackler Lecture Theatre\, Institute of Astronomy
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