Abstract: An apparatus for detachably fastening an NMR probe head with a pedestal box to an NMR magnet system of an NMR spectrometer has a holding system rigidly connected to the magnet system. A base plate of the holding system fastens detachably to the probe head pedestal box. A receiving device on or in the base plate receives all electric, electronic, optical, pneumatic, and thermal feed lines and optionally discharge lines required for the operation of the probe head. A lower side of the base plate in contact with an upper side of the pedestal box comprises multiple connecting elements into which the feed lines and discharge lines merge. The upper side of the pedestal box comprises receiving elements into which the feed lines and discharge lines from the connecting elements merge in a predetermined relative assembled position.

Abstract: An NMR probe head (1) having an RF coil arrangement (2a) in a coil region (2) and an RF shielding tube (3) for supply lines leading from a connection region (4) to the coil region. An elongated backbone (5) is arranged inside the shielding tube and has an inherently rigid, mechanically stiff structure having continuous bores and/or connecting channels (5a) which run parallel to the tube axis and accommodate the supply lines. The backbone has a continuously electrically conductive outer surface which leads from the connection region to the coil region and is electrically conductively connected to the conductive inner surface of the shielding tube via connecting elements (6). A continuous electrically conductive contour is formed thereby between the backbone and the shielding tube. This shields against externally incident RF fields and spatially separates the stable mechanical supporting construction and the supply lines from the electronic and RF components.

Abstract: An NMR probe head (1) having an RF coil arrangement (2a) in a coil region (2) and an RF shielding tube (3) for supply lines leading from a connection region (4) to the coil region. An elongated backbone (5) is arranged inside the shielding tube and has an inherently rigid, mechanically stiff structure having continuous bores and/or connecting channels (5a) which run parallel to the tube axis and accommodate the supply lines. The backbone has a continuously electrically conductive outer surface which leads from the connection region to the coil region and is electrically conductively connected to the conductive inner surface of the shielding tube via connecting elements (6). A continuous electrically conductive contour is formed thereby between the backbone and the shielding tube. This shields against externally incident RF fields and spatially separates the stable mechanical supporting construction and the supply lines from the electronic and RF components.