SPIRE instrument

SPIRE instrument (Spectral and Photometric Imaging REceiver) is built at Rutherford Appleton Laboratory (RAL) by a consortium led by M. Griffin, University of Wales, Cardiff, UK. It is composed of two parts:

An imaging photometer with "spider-web" bolometer arrays at 0.3 mK with a field of view of 4'x8'			Credits RAL
		Photometer side view
A Fourier Transform Spectrometer with "spider-web" bolometer arrays at 0.3 mK with a field of view of 2.6'x2.6'			Credits RAL
		Spectrometer side view

The french participation to SPIRE instrument SPIRE is done through two laboratories: the CEA/DAPNIA and the LAM.

The CEA/DAPNIA participation to the development consists in the realisation of the DRCU: warm unit (WU) composed of four sub-units in two boxes:

DCU box which drives the photometer and the spectrometer detectors
FCU box which consists in:

the MCU which drives the "SMECm" and "BSMm" mecanisms of the focal plane;
the SCU to manage the Thermal / Cooler / Calibration sub-systems;
the PSU which supply power to the sub-systems.

The LAM participation to the SPIRE development consists in:

the realisation of the FTS spectrometer mechanism, named SMECm			Credits CNRS/LAM/CNES
the realisation of the MCU electronic to drive the mechanisms
the realisation of the spectrometer and the photometer optics (Mirrors + Alignments)			Credits CNRS/LAM/CNES