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AMICA A ntarctic M ultiband I nfrared CA mera

Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007. AMICA A ntarctic M ultiband I nfrared CA mera. Favio Bortoletto INAF – Osservatorio Astronomico di Padova on behalf of the AMICA collaboration. AMICA People.

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AMICA A ntarctic M ultiband I nfrared CA mera

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  1. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 AMICA Antarctic Multiband Infrared CAmera Favio Bortoletto INAF – Osservatorio Astronomico di Padova on behalf of the AMICA collaboration

  2. AMICA People O. Straniero (PI), M. Dolci (PM), G. Valentini, C. Giuliani, A. Di Cianno, G. Di Rico, M. Ragni, D. Pelusi, A. Valentini F. Bortoletto, C. Bonoli, M. D’Alessandro, E. Giro, D. Fantinel, D. Magrin F.M. Zerbi, A. Riva, V. De Caprio, E. Molinari, P. Conconi L. Corcione, F. Porcu

  3. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 The Camera in Summary • To be mounted at the f / 21.65 IRAIT Nasmyth focus • Two independent channels • Near- and mid-infrared photometry (2 – 5.5 mand 7 – 28 m) • Standard broadband plus narrow band filter set • Remotely operated

  4.  from the telescope Cold Stop and filters position FM PM2 PM1 AMICA Optical Layout: Medium IR Channel Scale Reduction : 12.18 to 17.86 “/mm Si:As BIB 128x128 array @ 8K

  5.  from the telescope Cold Stop and filters position FM PM2 PM1 AMICA Optical Layout: Near IR Channel Scale Reduction : 12.18 to 17.86 “/mm TM InSb 256x256 array @ 35 K

  6. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 Detectors: 7 – 28 m 2 – 5.5 m InSb array by Raytheon Corp. Field Coverage: 2.29 arcmin Scale: 0.54 “/pixel Si:As BIB MF-128 by DRS Technologies, Inc. Field Coverage: 2.86 arcmin Scale: 1.34”/pix 256  256 format 30 m pitch Top  25 – 35 K QE @ 35 K > 80 % Well Capacity  2 105 e- RON  50 e- r.m.s. (typical) d.c. @ 35 K < 3 e- / sec /pixel 4 outputs 128  128 format 75 m pitch Top  4 – 10 K QE @ 8 K > 60 % Well capacity = 9.1106 e- RON @ 255 Hz frame rate = 282 e- r.m.s. d.c. @ 8 K = 3.5 e- / sec / pixel Maximum frame rate: 500 Hz

  7. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 AMICA the Cryostat

  8. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 The AMICA Control System: • Sytem supervision is assured by a PLC interfaced to the CPCI host: • - vacuum system • dual-stage cryocooler • instrument temperature monitoring • racks temperature monitoring • cryogenic step-motors control

  9. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 The AMICA Control System: CPCI Computer The AMICA detector control electronics is built on a CPCI-Pentium host with a SKYTECH PMC array-control I/F. The PMC array controller drives via a dedicated fiber-link the analog unit providing detector biasing, clocking and video signal processing. Secondary chopper drive and monitoring can be done by the detector controller sequencer or, off line, by a CPCI process.

  10. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 The AMICA Control System: Detector Controller Detector controller MIR simulation box NIR simulation box 1.2 Gbaud Fiber Link

  11. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 AMICA System Operation : The AMICA detector-controller commanding will be possible from three different sources : “Remote UIF” (Test, Commissioning) “Local unit” (CPCI Camera Driver, Test) “Remote Command Flow” • Build camera commands • Build readout waveforms • Configure detector tables • - Retrieve telemetry • - Retrieve data • - Quick look check • - Archive data

  12. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 Command and Data exchange : Commanding, camera configuration and data exchange is based on files. So the test operator interface can reside with simple files redirection on every networked computer.

  13. The AMICA Test Interface : The remote test Interface with the acquisition software is based on the IDL-atv standard interface Boot MIR Load bias table Load clock table Read Telemetry Boot……OK Bias table….loaded Clock table….loaded Telemetry…..

  14. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 Telemetry retrieval :

  15. Telescope and Instrument Robotization at Dome C Puerto Santiago, Tenerife, March 26-29, 2007 Scientific Data Organization: • Image data files are stacked in core memory buffers: object and sky for chopper assisted observations. • Frames are then summed up following the selected readout mode (single, multiple sampl. Etc.) to build the final image accumulators. • Images (buffers and/or accumulators) are retrieved by the remote UIF via Ethernet for quick-look analysis and archiving.

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