[Moller_intdet] [EXTERNAL] Integrating Detector meeting

[Krishna Kumar]

HI, Michael. What you are describing is the next step. At the moment, we have tiles in the G4 geometry with no “tile holding structures”. So, the low energy electron background we are currently looking at is unrelated to the main detector mechanical structures; it is coming from other subsystems (including the shower-max). Once we are done understanding that, we will be adding thin detector mechanical structures. At that point, if we see new background, of course that should be discussed at the detector meeting.

My main point was that we are at the first step i.e. to sign off on the 3-D sizes and locations of the main thin detector tiles in the simulation. For this, only the primaries are relevant. We will confuse ourselves by looking at low energy electrons that presumably come from wide angles. 
 
Cheers,
KK


> On Feb 19, 2023, at 2:03 PM, Michael Gericke <mgericke at jlab.org> wrote:
> 
> Hello,
> 
> The detector sees all events in the envelope, not just primaries. So, generally, if there is an increased background due to new geometry that enters the detector, the corresponding
> simulations and the implications should be discussed in the detector meeting.
> 
> Of course, people should be able to present their work where they choose to, but if it is detector related or effects the detector design and the signal it sees in any way
> it would be preferable to have it presented in the integrating detector meeting, even for simulations. That way, we can also properly account for any event rate changes in the signal
> that would influence the electronics design etc.
> 
> Thanks,
> 
> Michael
> 
> On 2023-02-19 12:22 p.m., Krishna Kumar wrote:
>> Hi, Folks. I was not able to attend Thursday's meeting but heard about the tile geometry analysis update. I had a quick discussion with Cip and Zuhal about it on Friday. We agreed that we need to separate the analysis into two separate tracks:
>> 
>> - In order to test the tile geometry and possible overlaps and gaps, one must look only at primary particles from the target. This is clearly an integrating detector meeting discussion to ensure the geometry is doing what was intended in the detector plane analyses.
>> 
>> - A separate issue is that there seems to be a surprising number of secondary electrons above 1 MeV. It is clear from new plots that these are not associated directly with the main high energy flux. These should be reviewed separately and it is more of a simulation meeting discussion.
>> 
>> Cheers,
>> KK
>> 
>> 
>>> On Feb 16, 2023, at 2:02 PM, Michael Gericke via Moller_intdet <moller_intdet at jlab.org> wrote:
>>> 
>>> Hello,
>>> 
>>> This is a reminder that our regularly scheduled detector meeting will take place today, at 4:00 pm EST.
>>> 
>>> The wiki link for the meeting is:
>>> 
>>> https://moller.jlab.org/wiki/index.php/Int_Det_Mtg_230216
>>> 
>>> If you have anything to present, please add it to the agenda.
>>> 
>>> Please note that the zoom link has changed.
>>> 
>>> Thanks,
>>> 
>>> Michael
>>> 
>>> Join Zoom Meeting
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__ca01web.zoom.us_j_92766807065-3Fpwd-3DWDNPdTM3SW4wRTd3RHVWdWhWeGpkQT09&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=n8yp2esm0KFRKpaGXzCWkswkaFnv92cJmpaE2yrYpV8&m=80ZtrYS2ajEnHAuah46y72a5UTbsXLEEmMDilBC752SIynWWvnp17dX2JwM3KHey&s=0hKmtmPZuNSn9Hp8ikDX2CXXW_qv-KBiyEnptc3yGLA&e= <https://urldefense.proofpoint.com/v2/url?u=https-3A__ca01web.zoom.us_j_92766807065-3Fpwd-3DWDNPdTM3SW4wRTd3RHVWdWhWeGpkQT09&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=n8yp2esm0KFRKpaGXzCWkswkaFnv92cJmpaE2yrYpV8&m=80ZtrYS2ajEnHAuah46y72a5UTbsXLEEmMDilBC752SIynWWvnp17dX2JwM3KHey&s=0hKmtmPZuNSn9Hp8ikDX2CXXW_qv-KBiyEnptc3yGLA&e=>
>>> 
>>> 
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