[Dsg-hallc_epics] Four of five requests for HV screens completed

[Tyler Lemon]

Hi Steve.

To regenerate the screens, the Python-based conversion script is used. I put a copy of the latest version on cdaql2 at /home/cdsg/tcl2css.

We did give the mainframe and all the cards with the SHV connectors back to Brad. We have the second mainframe with CAEN A7030TN HV cards that have 36 channels per card.

We can test the failed HV cards to confirm problems. They can be dropped off any time. What would be the time frame that the cards would need to be tested in?

Best regards,
Tyler

________________________________
From: Stephen Wood <saw at jlab.org>
Sent: Monday, July 8, 2019 9:02 AM
To: Tyler Lemon
Subject: Re: [Dsg-hallc_epics] Four of five requests for HV screens completed

Tyler:

This sounds great.  I'll try it out.

How do you regenerate the screens?  Coincident with power outage, we had
a bunch of HV hardware problems and had to move things around to
different channels.

Does your group still have the mainframe (with the SHV connectors) or
did you pass that back to Brad?  We may need to raid that crate for
cards.  Related to that, would your group be able to test cards that
have bad channels to confirm problems before we send them for repair.

Thanks, Steve

On 7/8/19 8:36 AM, Tyler Lemon wrote:
> Hello Steve,
>
> Of the five points you sent us on the HV CSS screens (below in blue) all
> but point #2 for the mouse-over information has been addressed.
>
> *1.  If I pop up a histogram for one group and then pop up the histogram
> for the all group for the same spectrometer, the individual detector
> histogram gets replaced by histogram of everything.*
> Bug is fixed. Data displayed in a histogram will no longer be
> overwritten if a different histogram is opened.
>
> *2. On the histograms, can you make a mouse-over that will show the
> channel name, epics name (or crate, slot, channel), and voltage/current)*
> We are still looking into this point.
>
> *3.  Could the histograms be resizable?  So if you make the window
> bigger, the histogram size scales with the window?*
> Feature has been added. Histogram screens can now be resized. Using the
> feature added for point #4, the bar size on the histogram also resizes
> when the screen size is changed. It may take a few seconds for the bar
> size to update, though. The attached "hms-hodo-1x-histogram-resized.png"
> shows this.
>
> *4.  Could the width of the bars on the histograms be variable width.
> So a group with 16 channels has wider bars than a group with more.  It
> might be nice to leave a very small gap between bars.*
> Feature has been added. All histograms for detectors now have barsizes
> set by the number of channels. One note on this point: for detectors
> with only a few channels, like the Drift Chambers, CSS seems to limit
> the size the bars can be, so the histograms  for these detectors have
> more empty space than others. The attached
> "variable-bar-width-example.png" shows this.
>
> *5.  On the all histogram it would be nice to make a different color for
> each group.*
> Feature has been added. If the colors should be different, they can be
> changed. Just let us know. The attached
> "hms-all-histogram-group-colors.png" shows this.
>
> The new versions of the screens have been added to cdaql2 and the
> startup script (go_hallc-hv) has been updated to point to the new
> screens. From now on, whenever the script is used to open the screens,
> the new ones will open. If there are currently any screens opened, they
> should be closed and then reopened using the script to get the new features.
>
> If there are any issues caused by these changes or if there are any new
> items, please let us know.
>
> Best regards,
> Tyler
>
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