U.S. ATLAS HL-LHC Upgrade Level 2 and Deputies-NSF only Management Mailing List

[Elliot Lipeles <lipeles AT hep.upenn.edu>]

Here are two options for more details on the trigger risks

(either text or screen shot of relevant part of risk register).

For te HTT plan B doesn't seem very crisp - I think it says we are behind, but there is poof of principle boards can be built, but doesn't seem to address the timescale problem, i.e. you are confident they can be built, but why are you confident they can be built in time for the Fall?

I'm not finding the full set of slides in this thread so I don't know what you put there. My view is we may be late. This would mostly effect the high-level testing plans. I.e. we are ~1.5 months late (fairly confident it won't be much worse than that) and there is supposed to be 4 months of testing before MREFC. If that gets cut to 2 months, what will suffer is testing the high-level firmware on the hardware. Of course the high-level firmware can also largely be testing in simulation (the low-level stuff does need to be on the hardware).

Elliot

On Thu, Sep 12, 2019 at 7:10 AM Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu> wrote:

Hi Mike,

Thanks, largely implemented.  A few follow-ups:

> *Q3-Trigger: maybe could add a bit more about what the risk is since the title may in some cases be too cryptic?

=> This I leave to Elliot.

>
> *Q4: I took this to mean a list of what remains to be done for ALL systems, and then pick the few things that are most concerning. Here we just list 2 examples (the ones that most concern)? Also the plan B for the muon sMDT seems weak "but hoping to catch up before April" what is the plan for that catch up, longer shifts? Something else. Seems to vague as is. For te HTT plan B doesn't seem very crisp - I think it says we are behind, but there is poof of principle boards can be built, but doesn't seem to address the timescale problem, i.e. you are confident they can be built, but why are you confident they can be built in time for the Fall?

We *did* pick the few items that we think are most concerning,
Basically the ones where we haven't built a demonstrator ourselves yet.
We don't want to list one item per system, that wouldn't make sense.

Plan B is always a schedule slip.  I should add that.


> *Q12: presumably this is not a complete answer yet?

It is.

Best,

Gustaaf
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