Kenneth,
Looong ago, I did ESR at Oak Ridge. We had one X-band cavity that
showed a huge baseline offset at low fields that turned out to be due to
nickel. The guy in the shop had nickel-plated (ferromagnetic!) his lovely
work.
This signal needed no sample, was proporitional to the modulation
amplitude, and went away (more or less) by the time we reached 3300 Gauss.
Mark Conradi
On Tue, 13 Jun 2023, Kenneth Sharp-Knott wrote:
> Can't say I've ever seen an EPR post on here, but here goes... I'm
> barely familiar with EPR but manage the instrument in our lab. Today, the
> users are observing a signal/feature/hump an the start of the spectra from
> 0-500G which should not be there. I have no idea where it is coming
> from, but it's present in all samples, including the standard.
>
> Anyone have any ideas? This is a Bruker EMXplus with the Premium X MW bridge.
>
>
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Received on Tue Jun 13 2023 - 11:59:24 MST