Skip to main navigationSkip to sub navigationSkip to main content

SPIRou / Infrared SpectroPolarimeter

2016 September: Spectrograph cryo-mechanics delivered at IRAP/OMP

The spectrograph cryo-mechanics was delivered at IRAP/OMP and is currently under assembly

Spectrograph delivery

Overview of the complete cryostat in the
IRAP/P2IS clean room
(©SChastanet-CNRS/OMP)

September 2016 marks the completion of a major milestone in the SPIRou project, with the delivery of the spectrograph cryo-mechanics (cryostat and optical bench) from NRC-H in Victoria (Canada) to IRAP/OMP in Toulouse (France).

After four days of air and ground travel, the six tons of the SPIRou cryo-mechanics finally arrived at the IRAP/OMP integration platform. Unpacking followed immediately, which meant in practice dismounting and emptying each of the 9 crates one after the other, and transfering the corresponding equipment into the transfer hall of the integration platform. All sensors on the crates were double-checked to make sure that no problem occurred during the trip (shocks, tilts, extreme temperature and humidity). The equipment was then cleaned before being installed in the dedicated ISO8 clean room, in which SPIRou will stay for almost one year.

The ongoing first step of the assembly consists in aligning the two main cylinder of the vessel with the internal support frame. The optical bench, including the cold plate and bus, is then assembled on the frame. Different metallic structures and rails used to handle and position all the equipment are then removed. In the second step, we will repeat the cryostat acceptance tests following reassembly and check that the performances met at NRC-H can be reached again.

These activities are carried out under the guidance and control of Nicolas Striebig (CNRS/OMP), Leslie Saddlemyer (NRC-H) and Eric Le Comte (IRAP/OMP). Special thanks to the NRC-H team for the completion of this major milestone, and for the IRAP/OMP team for the smooth reception of the material.

The spectrograph cryo-mechanics installation at the IRAP/P2IS plateform,
in Toulouse
(©N.Striebig CNRS/OMP)

Capture plein écran 03102016 002311
SPIRou photo gallery  (HD version)
Spectrograph cryo-mechanics delivery 1

Crates inside the truck
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 2

Sensors checking
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 3

Overview of the crates at P2IS plateform
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 5

One of the vessel section unpacking
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 6

Installation of the first vessel section inside the clean room
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 7

Optical bench support frame unpacking
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 8

Cryostat cover inspection and cleaning
(©SChastanet-CNRS/OMP)

 Spectrograph cryo-mechanics delivery 9

Hermetic feedthroughs of the cryostat cover
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 10

Optical bench unpacking
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 11

Cryostat installation inside the clean room
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 12

The optical bench covered with multi layer insulation
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 13

Optical bench assembly
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 14

Complete cryostat installation
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 15

Optical bench screwing on the cryostat cover
(©SChastanet-CNRS/OMP)

Spectrograph cryo-mechanics delivery 16

Cryostat installation control
(©SChastanet-CNRS/OMP)