3D Data!

Here's a small section of a 3D CBCA(CO)NH strip plot of Ubiquitin. This spectrum was acquired in 16 hours as part of the testing and installation of the Varian NMR system.

Lineshape stability

We've accumulated some drift data over the past few weeks and all is looking very good. The magnet drift is down at 4.5 Hz per hour, and the lineshape drift meets spec easily over a 12 hour period. This spec was due to be met 6 months after magnet energization so we are very happy to see it come in early.

Weekly Update

Well Varian has been working hard all week to achieve the sensitivity spec for the system, but so far has been unable to meet the sucrose test requirements. They are doing a lot of troubleshooting though and seem to be progressing well. We have been checking on some vibrations as well this week and are tweaking the facility to get us the best possible results. This installation has been a good test of our remote operation capabilities, so the process of running the spectrometer from remote sites is almost completely ironed out. We feel that this is incredibly important for our users, as not having to travel to Denver to operate the system will substantially decrease the cost of using this facility.

Solaris 10 and VNMRJ

Remote testing has begun, although we ran into a snag yesterday with loading the shims for an experiment. Apparently VNMRJ does not play well with Solaris 10. So we will be downgrading the system today to Solaris 9 in the hopes that some of the inconveniences we've been experiencing will be alleviated. Apart from that things are still progressing here on schedule.