Re: [AMMRL] FID spikes while running CPMAS

From: Tom Pratum <tkp9551_at_gmail.com>
Date: Tue, 16 Apr 2024 10:48:18 -0700

Sometimes, but not always, you can see arcing by looking at the power reflected
from the probe on a scope. If you do see it there, then that is confirmation,
but if you don’t it doesn’t necessarily mean it isn’t arcing.


Tom Pratum, SOU


> On Apr 16, 2024, at 6:18 AM, Vernon M Russell via groups.io wrote:
>
> I’m getting sporadic spikes in the fid while running a cpmas sequence
> on a Neo (2.5 mm cpmas probe). I’ve tried easing up on the various
> power levels and pulse times but the sporadic nature makes this difficult to
> track down. Adjusting the spinning speed does seem to help. Does anyone have a
> general troubleshooting guide to see what is causing such spikes?
> Thanks,
> Vernon
>
> Vernon Russell
> vrussell_at_wlgore.com
> W. L. Gore & Associates, Inc.
> Together, improving life
> 501 Vieve's Way, P.O. Box 1320
> Elkton, MD 21922-1320
> USA
> gore.com
>
>


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Received on Tue Apr 16 2024 - 10:48:39 MST

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