Eventually we managed to cut open a S.C. magnet and have a look inside. The cutting work was performed at the mechanical shop of the Chemistry Department of the University of Pisa, Italy and the cutter was Mr. Paolo Nardini. Here is how it looks like
The magnet is and old-style Varian 7.04T magnet, type R2D2 as it was known between Varian service people.
The two cryogenics dewar are clearly visible, the upper is the LN chamber and the lowe is the LHe chamber with the coils inside; also the system of the concentric vacuum chambers can be appreciated
By the way, I have two questions for magnet old-timers:
1) Where the R2D2 name comes from?
2) Who came first: the R2D2 magnet or C3P8 android of Star Wars? They are too similar one to the other, who copied the other?
Following photos shows the inside of the inner LHe Dewar with details of the coils and the proud cutter.
The small black cilynders on the left side of the coils
are the superconducting switches.
We also cutted an Oxford 4.7 T magnet, and here here is a couple of shots. The cutting was performed by Mr. Moreno Acciai at the Officine Meccaniche Fantini shop in Calenzano (Florence)