Tagged questions

probe temperature

0 0 649
answers votes views
Hi, If the probe temperature increases inadvertently What should be done to reduce the temperature. Thank you ...
sattar saberi 1 Oct 11 '15 at 11:30

prob not found

0 0 549
answers votes views
Hi Dear recently i see error the prob not found i do command "edhead" and then atmm and after that the problem be solved...
sattar saberi 1 Sep 15 '15 at 10:28

Beginners question: checking probe and multinulear ability in Bruker machines

2 1 10676
answers votes views
Hi All, This may be a daft question, but how do I go about identifying the probe in our NMR machine, and hence whether ...
Kirk Marat 711 Jul 04 '14 at 08:51

MAS spin counting

5 0 2k
answers votes views
Hi, We have a Bruker MAS probe (4mm, late 90s vintage, widebore) that reports a spin speed twice what it is actually doi...
w101bdk 7 Nov 13 '13 at 10:22

Please suggest experiments that push the power limits of NMR probes

5 1 7k
answers votes views
I'm trying to come up with reasonable tests of probe performance for all channels by simulating conditions at which arci...
SankarampadiAravamudhan 91 Oct 22 '10 at 01:56

How does removal and re-installation of probe affect shims?

2 0 5k
answers votes views
If you remove and later (not too much later) reinstall the probe and you are confident that probe position inside the ma...
Hamish Grant 21 Aug 24 '10 at 17:56

Using probe that started losing B1 strength or has longer 90 degree pulse

1 0 4k
answers votes views
I've found that one of our probes lost ~1.5-2 dB of power on 13C, but nutation curve looks OK. There are no random spike...
Joseph DiVerdi 146 Apr 19 '10 at 18:07

What happens if NMR probe is not perfectly tuned/matched?

2 1 5k
answers votes views
What may happen if probe tuning/matching is not perfect besides loss in the sensitivity, any more subtle details? Whoul...
carl carter 21 Feb 22 '10 at 16:10

What is radiation damping?

1 1 21581
answers votes views
What makes very strong signals broader - just due to the interaction of the sample with the detection coil - what is the...
Kirk Marat 711 Feb 08 '10 at 05:47

How to use network analyzer or oscilloscope to tune and match NMR probe?

1 0 8k
answers votes views
Hello, could someone share directions on how to tune and match NMR probe RF circuit using a network analyzer? We have a ...
Kirk Marat 711 Jan 14 '10 at 11:51
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