A Bolometer Array Instrument for Millimeter Wavelength Philippe Camus, CNRS-CRTBT (Grenoble) Milano, July 6th, 2001
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
Today and future Instruments MAMBO (IRAM 30m) 37 bolometer array on Si3N4 membrane (MPfir)
Optical Layout Cryostat Dilution mK Adaptation to ‘any’ detector Arrays
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 = W/Hz or W/Hz
Small Array Development (6X6 detectors) NbSi layer co-evaporation & Lithography Objective 8X8 bolometers
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