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Hi Tom,</div>
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<br>
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8:30 - 9:30 is fine. I can log on now if the PC is available.</div>
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I was able to make the change a head of time using previous runs' data, so I don't expect it to take too long to add the new code.</div>
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<br>
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Tyler<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> thomaso@jlab.org <thomaso@jlab.org><br>
<b>Sent:</b> Wednesday, October 28, 2020 5:58 PM<br>
<b>To:</b> Tyler Lemon <tlemon@jlab.org><br>
<b>Cc:</b> thomaso@jlab.org <thomaso@jlab.org>; dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
<b>Subject:</b> Re: [dsg-hdice] fsNMR program broken when using background files</font>
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<div class="PlainText">Hi Tyler,<br>
<br>
I spoke to Xiangdong to figure out a time when we don't need control of<br>
HDiceNMR2. Would you be free tomorrow morning to take a look at the<br>
program between 8:30AM and 9:30AM?<br>
<br>
That small time window is after we complete a full night scan and before<br>
the beam is brought back up for Run 2.<br>
<br>
Let us know if that time frame works for you tomorrow. If not we'll try<br>
to figure out another.<br>
<br>
Thanks,<br>
Tom<br>
<br>
<br>
<br>
> Hi Tom,<br>
><br>
> Thanks for the info.<br>
><br>
> I have a morning and early afternoon filled with BlueJeans meets, so I'll<br>
> plan to take a look on one of the HDice PCs around 3:00PM.<br>
><br>
> I have a few data sets from fsNMR runs saved locally on one of DSG's PCs<br>
> so in the mean time between meetings, I'll look through those data sets to<br>
> see if there's a set that doesn't have a peak and use that to start<br>
> offline development of the fix.<br>
><br>
> Thanks,<br>
> Tyler<br>
> ________________________________<br>
> From: thomaso@jlab.org <thomaso@jlab.org><br>
> Sent: Wednesday, October 28, 2020 9:46 AM<br>
> To: Tyler Lemon <tlemon@jlab.org><br>
> Cc: thomaso@jlab.org <thomaso@jlab.org>; dsg-hdice@jlab.org<br>
> <dsg-hdice@jlab.org><br>
> Subject: Re: [dsg-hdice] fsNMR program broken when using background files<br>
><br>
> Hi Tyler,<br>
><br>
> Yes, use the overall maximum value for the background scaling. I forgot<br>
> to mention that. If you are ready now, we can log off the NMR PC so you<br>
> can check it out. Let me know when you would like to start.<br>
><br>
> Thanks,<br>
> Tom<br>
><br>
>> Hi Tom,<br>
>><br>
>> In the cases where there is no peak in the background data, how should<br>
>> the<br>
>> program handle it?<br>
>><br>
>> Should it just use the overall maximum value in the background scaling?<br>
>><br>
>> Tyler<br>
>> ________________________________<br>
>> From: dsg-hdice <dsg-hdice-bounces@jlab.org> on behalf of<br>
>> thomaso@jlab.org<br>
>> <thomaso@jlab.org><br>
>> Sent: Tuesday, October 27, 2020 5:24 PM<br>
>> To: dsg-hdice@jlab.org <dsg-hdice@jlab.org><br>
>> Subject: [dsg-hdice] fsNMR program broken when using background files<br>
>><br>
>> Hi Tyler,<br>
>><br>
>> Xiangdong and I confirmed the new 50 Ohm / 1 MOhm switch you added<br>
>> worked<br>
>> fine.<br>
>><br>
>> However, we ran into a new issue with the fsNMR program. We took a set<br>
>> of<br>
>> sweeps for our background without issue. The problem arises when we<br>
>> select a previous background scan to use for subtraction during the<br>
>> signal<br>
>> scan.<br>
>><br>
>> Normally the program looks for the peak value of the background curve as<br>
>> a<br>
>> step in the background normalization/subtraction process.<br>
>><br>
>> In our case, we are looking for the signal in part of the curve. There<br>
>> is<br>
>> no peak in the region we are scanning. As a result, the program is<br>
>> unable<br>
>> to calculate values for R, X, and Y. The frequency column is fine since<br>
>> those values are not manipulated. The phase column is fine due to that<br>
>> being a straight subtraction between the two phase values (no<br>
>> normalization used).<br>
>><br>
>> Could you please investigate this issue as soon as you can? We can give<br>
>> you access to the PC anytime you need, just let us know.<br>
>><br>
>> Thanks,<br>
>> Tom<br>
>><br>
>> _______________________________________________<br>
>> dsg-hdice mailing list<br>
>> dsg-hdice@jlab.org<br>
>> <a href="https://mailman.jlab.org/mailman/listinfo/dsg-hdice">https://mailman.jlab.org/mailman/listinfo/dsg-hdice</a><br>
>><br>
><br>
><br>
><br>
<br>
<br>
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