Category: Installation of 850 MHz NMR
Day 28
| November 17, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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All charging leads were taken out form the magnet. The 850 MHz magnet is now persistent. We now have an 850 MHz magnet at the department of Chemistry and Biochemistry in the University of Delaware. The magnet installation has come to the end.
Day 27
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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The cryoshimming has been worked well. The water resonance is now nice and narrow.
Day 24
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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The cryoshimming has already made a huge difference on linewidth of water resonance.
Day 21
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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Around 6:00 PM, the magnet was charged to the field (19.97 tesla). A nice and broad 1H NMR signal of H2O appeared on the screen. The broad peak is anticipated to get narrower when the cryoshimming starts next week.
Day 19
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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The magnet charging in progress. Not quite reached the filed yet, but the first 2H NMR signal showed up. 2H NMR signal
Day 17
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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The magnet energization started today.
Day 14
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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Liquid helium filling started.
Day 12
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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While the magnet cooling in progress, 3000 liters of liquid helium were delivered.
Day 9
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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The pre-cooling started.
Day 5
| November 16, 2011 | Posted by Shi Bai under Installation of 850 MHz NMR |
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4000 liters of liquid nitrogen delivered and the magnet was ready for pre-cooling.
