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Published byRylan Manor Modified over 9 years ago
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A Bolometer Array Instrument for Millimeter Wavelength Philippe Camus, CNRS-CRTBT (Grenoble) Milano, July 6th, 2001
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Bolometric Millimeter Camera Sunyaev-Zel’dovich effect High-Z objects and star formation regions imaging at 1mm => wavelength 1.2mm /2.1mm Which detector at 2.1mm? IRAM 30m Field 5X5 arcmin 256 pixel@2.1mm 1024 pixel@1.2mm
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Today and future Instruments MAMBO (IRAM 30m) 37 bolometer array on Si3N4 membrane (MPfir)
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Optical Layout Cryostat Dilution 100-300mK Adaptation to ‘any’ detector Arrays
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NbSi Bolometer (CSNSM/ Service d’Aéronomie) Bolometer on thin Si 3 N 4 Memebrane 5X5mm e=100nm Thin film geometry optimisation (typ. 100X400 e=100nm) NEP = 5.10 -16 W/Hz 1/2 @300mK or 5.10 -17 W/Hz 1/2 @100mK
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Small Array Development (6X6 detectors) NbSi layer co-evaporation & Lithography Objective 8X8 bolometers
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Electronic Read-Out Multiplexing is required to reduce the number of output amplifiers (JFET) Low dissipation/low temperature operation (HEMTor MOSFET?) Objective of 8 detector/amplifier
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