erpload from Magnettech

[Emilien]

Hello,
I'd like to use the eprload function to plot kinetic recored with a Magnettech spectrometer.
The kinetic mode generates a directory containing single spectra.
In the magnettech software (ESRstudio), the results can be saved with 3 different extensions: xml (new format), spe (old format), or csv.
Saving xml or csv files generates very large directory, unlike saving spe.
For example a kinetic over 24h generates a 226Mo directory in csv, a 211Mo directory in xml and a 5Mo directory in spe.
That's why I'd like to record kinetic in spe.
Unfortunately, the structure parameter arising from spe eprload does not contain at least one of the following parameters: Timestamp or KineticSamplingTime.
These informations are not available in the spe files?
Thanks!
Emilien
PS: here the first spectrum.spe of my kinetic. *.xml files are not supported for uploading...

ex_kinetic_magnettech_01.spe

(8.06 KiB) Downloaded 2468 times

[Stefan Stoll]

Currently, EasySpin only reads 1D .spe files.

Can you please share a two-dimensional .spe file so we can look into this?

[Emilien]

Hello,
Actually there is no 2D files generated.
When a kinetic experiment is performed, only 1D spectra are generated in a dedicated directory, that can be saved in xml or spe format.
The parameter structure provided by the eprload function applied to a spe file does not contain any information about time. However this information should be contained in this file, because loading such a file with ESRstudio, enable to display these time informations.
Is it more clear now?
Thanks!
Emilien

[Stefan Stoll]

Understood, thanks.

The format specification for the SPE files that we have does not list a Timestamp or KineticSamplingTime parameter. We'll see if we can obtain a more up-to-date specification. Meanwhile, can you share the XML file corresponding to the SPE file you shared?

[Emilien]

As xml format is not allowed for uploading, I share a zip containing the xml...

ex_kinetic_magnettech_01.zip

(199.37 KiB) Downloaded 559 times

Thanks!

[Stefan Stoll]

Thanks. I'll follow up as soon as I hear back from Bruker/Magnettech folks.

[Emilien]

Hello,
no news from Bruker?
Thanks!

[Stefan Stoll]

I heard back. There is no time stamp or sequence number stored inside the SPE file. Use the time stamp of the file itself to sort the spectra in time.

[Emilien]

Thanks,
but unfortunately it is not possible because all the spectra are saved on the disk "at the same time". If there is a lot of spectra we can have different times but with no experimental meaning and starting from the last spectrum...

[Stefan Stoll]

This is unfortunate and definitely a flaw in the old SPE format.