SHARP+-Monochromator shielding manufacturing

The monochromator shielding is a structure surrounding the instrument monochromator which is an element allowing the selection of neutrons at a precise wavelength. It is located at the end of the primary spectrometer. Its main function is to protect the instrument from fast neutrons providing a continuous take-off angle in the range [25°-130°] and to provide radiological protection for the environment. The shielding must allow for high magnetic field experiments (10T static on sample position) without constraints in its nominal angular range. The shielding allows the outgoing beam to go through a beam-channel, in the direction of the sample and detector. It will be linked to the H15 guide tunnel. A door, at the back of the shielding, must allow access to the inside of the protection to the monohromator position for maintenance reasons The monochromator shielding is made out of 2 sections: a fixed part and a moving blocs system. Both are made of Lead and covered inside by a 5mm layer of B4C.