Patent ID: 7141979

Claim:
A cryohead for nuclear magnetic resonance measurements (NMR), the cryohead comprising: a housing; a first RF coil disposed in said housing, said first RF coil for detection of NMR signals in a detection channel; a second RF coil disposed in said housing, said second RF coil for transmitting or decoupling in a transmitting or decoupling channel; a first heat exchanger disposed in said housing and communicating with said first RF coil to cool said first RF coil to cryogenic temperatures, said first heat exchanger structured for acceptance of a first cooling, flow-through fluid; and a second heat exchanger disposed in said housing and communicating with said second RF coil to cool said second RF coil to cryogenic temperatures, said second heat exchanger structured for acceptance of said first or a second cooling flow-through fluid, wherein said second heat exchanger is separated from said first heat exchanger.