| Probe | HCN_0775_sem | HCN_3512_sem |
| Shims | HCN_0775_sem_lk_d20 | HCN_3512_sem_lk_d2o |
| h1pw90 | 7.8us @ 52 | 7.5us @ 51 |
| lshp_ns | 0.74/8.59/10.6 | 0.60/5.18/8.09 |
| lshp | 0.33/2.73/4.92 | 0.30/1.89/2.09 |
| h1sn | 702:1 | 877:1 |
| f19pw90 | 9us @ 52 | — |
| f19sn | 109:1 | — |
| c13pwx | 14.8us @ 60 | 24.7us @ 60 |
| c13gamah2 | 8065 @ 43 | 8065 @ 48 |
| n15pwx | 33us @ 60 | — |
| gzprofile | 32.8 G/cm | 62.8 G/cm |
| gzrecovery | < 1ms | < 1ms |
All shims, probe files and gradient maps saved under /home/vnmr1/vnmrs/ and /vnmr/.
Filled three NMR magnets using 100L dewer. Magnet Start End Total Oxford 500 28% 100% 72% 95L 45L 50L 8:20 8:40 20 mins Oxford 300 Unknown 100% NA 45L 10L 35L 8:50 9:05 15 mins Bruker 500 81% 91% 10% 10L 0L 10L 9:15 9:20 5 mins
Repaired various issues with the DD2 400, and Mercury 400. Also, had to figure out how to setup Mercury for Q-Tune because it has a protune accessory. Mercury also had a bad High Band transmitter that had several steps from its attenuator bad.
De-Energize and Pack De-energized and packed system for shipment to Canada. System was de-energized and warmed up and then packed into Oxford shipping crate (including sides). Four pieces were shipped to IET for final crating and packing. Customer arranged for pickup by a freight carrier. Found the following issued during benchmark; Remote Status box inop…
System had several issues including bad Digital PS, inconsistent shims and intermittent RF output. Believe the shim issues were due to bad digital PS. Still having intermittent RF issues. Also, the CPU board was bricked. I was able to restore it to defaults using procedure below. Attach a terminal connection to the Acq CPU Diag…
Lineshape does not meet spec. Needs 3D Gradient shimming. Found that the upper barrel was not centered in magnet field. Re-centered upper barrel. Performed 3D gradient shimming successfully. Obtained lineshape spec after RT shimming. Performed H1 and C13 performance specs, all passed. Default shims and power level vales saved. New gradient map saved.
De-Energize Varian Magnex 600 Magnet De-Energized magnet using three supplies set as follows: Supply 1 – Main Supply 2 – RPS / Z0 Supply 3 – Z2 Supply 1 and 2 applied thru the 10-way connector on the neck tube. Supply 3 applied thru the shim stick. Main heater would not open when it was…