High-temperature NMR MAS probe with optimized temperature gradient across sample rotor

Patent · Tue Oct 05 00:00:00 EDT 2021

OSTI ID:1859915

Mehta, Hardeep S.; Sears, Jr., Jesse A.; Walter, Eric D.; Washton, Nancy M.; Mueller, Karl T.; Chen, Ying

A rotor housing assembly for NMR spectroscopy. An elongate rotor has a distal drive end, a proximal end and an internal sample space positioned along its length between the drive and proximal ends. The rotor is driveable about a rotation axis by a drive gas flow. A rotor housing has an interior space in which the rotor is at least partially received. At least one first heated gas flow inlet is positioned opposite the internal sample space, through which a first heated gas flow is controllably flowable into the interior space to heat it and the rotor. At least a pair of spaced apart second heated gas flow outlets are axially spaced from the first heated gas flow inlet to controllably convey a second heated gas flow to heat distal and proximal areas of the sample space to minimize a temperature gradient extending axially within the sample space.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): 11,137,458
• Application Number: 16/888,374
• OSTI ID: 1859915
• Resource Relation: Patent File Date: 05/29/2020
• Country of Publication: United States
• Language: English