Re: Software for fill-on-fill injection

[Gerd Rosenbaum <rosenbaum@anl.gov>]

Bill,

Mark was talking about fill-on-fill and not about the darn top-up. The PV's you
point to in Linda DeVito's e-mail don't tell what Mark want to have:

> - Next fill-on-fill injection will occur in N minutes
>
> - Previous fill-on-fill injection completed N minutes ago
>

Gerd


Bill Lavender wrote:

> >     Folks,
> >
> > I am trying to modify my tomography software to work with fill-on-fill
> > injection.  What I need to do is the following:
> >
> > - ~60 seconds before a fill, stop data taking frames and take a final 'flat
> >   field' for normalization
> >
> > - After the fill wait ~60 seconds, take another flat field and then continue
> >   taking data frames
> >
> > In order to implement this I need PVs which provide the following information:
> >
> > - Next fill-on-fill injection will occur in N minutes
> >
> > - Previous fill-on-fill injection completed N minutes ago
> >
> > Obviously other PVs from which the above information can be derived would also
> > be fine.  Is such information currently available?  I could not find it in the
> > Web documentation.  If it is not available am I the only one who thinks it is
> > important to have?
> >
> >                                    Mark Rivers
> >
>
> Well, Linda Devito sent out a mail message on Friday to a bunch of people
> which contained most of this information.  I looked at the list of recipients
> for that message and for some reason your name wasn't on the list, so
> here is a copy:
>
> > February 25, 2000
> >
> > Top-up test starts @ 0800 Monday (2/28)
> >
> > No fill-on-fill refill at 7:45
> >
> > 0800 the injection magnets will be pulsed at 2 Hz for 5 minutes for user
> > triggering test
> >
> > 0805 a fill-on-fill to 100 mA, followed by top-up operation with 2
> > minute period
> >
> > 1100- 1105 triggering test repeated followed by fill-on-fill to 100 mA
> >
> > 1400-1405 triggering test repeated followed by fill-on-fill to 100 mA
> >
> > 1405 top-up operation continues until 0800 on Tuesday
> >
> >
> > As a reminder, the following are the PV?s related to top-up:
> >
> > S:TopUpCurrent   - Amount of Top Up current
> >
> > S:TopUpTime  - Time of Last Injection
> >
> > S:MSLT:longTopOffGateBI  - The Injection Gate Pulse
> >
> > S:TopUpInterval - Time between Injections
> >
>
> I've just checked these PVs and they do seem to exist.
>
> Hope this helps,
>
> Bill Lavender