[BDXlist] BDX be-weekly meeting on Tuesday May 10 at 11:00AM (JLab-time)

[Marco Battaglieri]

Dear Elton,
thanks for your reply.
Here below some clarifications.

Elton Smith wrote:
> Hi Marco,
>
> I will not be able to attend the meeting tomorrow due the the Hall D 
> collaboration meeting. Your slides are a good outline of what needs to 
> be done. Just a few questions/comments:
>
> 1. I don't understand the JLab/CT configuration vs the JLab/proposal. 
> Is there a plan to measure the CR flux here at JLab? In that case, the 
> bullets to
>
> BDX-GEMC-simulations * Prove that RBGCJLab/CT = RBGCCT/LNS for 
> sim/data (absolute rates) (if possible)
>
> This does not make much sense for the proposal, although perhaps can 
> be included as a plan in the proposal. At the moment, it seems like we 
> have two configurations (two data and two simulations) in Catania, but 
> only one configuration (one simulation) for JLab (proposal). A second 
> configuration for JLab might lead to confusion.
>
I did not mean to 'measure' the cosmic at JLab with the prototype but 
simulate the prototype response in CT/LNS and JLab/CT configurations, to 
show that simulations provide the same rates. In fact, while the 
overburden is more favourable at JLab (or we can always do that) the 
presence of the close by shaft (used to lift the detector) may provide 
additional bg not accounted for in CT/LNS config.
I think that if we should show that this effect is negligible (comparing 
results with the prototype in both situations). After proving that, we 
can only focus on  results obtained on the full detector (JLab Proposal) 
to obtain any results.

> 2. See slide 4. I do not think the building included 30 cm of concrete 
> in all places, especially the roof. See the sketch at
> https://github.com/JeffersonLab/BDXProposal/blob/master/BDX-proposal_main/figs/Draw_C1_elevation.pdf 
>
>
> However, we should definitely consider this structural possibility, 
> which might allow for adding overburden on top of the building if 
> necessary. I will inquire from Tim what the implications are to the cost.
>

so far, the wall thikness is as reported but there is no roof in the 
detector-house. We can easily sell the (ext house roof + ext house flor+ 
detector house roof)  30+30+0 cm with 15+30+15 cm.
I agree that we may want to study the effect of changing the overburden 
(again using simulations) assuming that the shielding factor can be 
correctly obtained from the simulations.

We'll start the discussion tomorrow but obviously we can come back on 
this point later or have a dedicated meeting if you want.
Cheers
Marco
> Cheers, Elton.
>
>
>
> Elton Smith
> Jefferson Lab MS 12H3
> 12000 Jefferson Ave STE 4
> Newport News, VA 23606
> (757)269-7625
> (757)269-6331 fax
>
> On 5/9/16 7:24 AM, Marco Battaglieri wrote:
>> Dear colleagues,
>> We will have a BDX meeting next Tuesday at 11:00AM (EST) (8:00AM LAX, 
>> 17:00 Rome, 16:00 UK).
>>
>> The agenda is posted here:
>>
>> feel free to add items or issues you want to discuss
>> https://wiki.ge.infn.it/hps/index.php/May_10_meeting
>> For people on-site we have the CC-F227 room reserved until June.
>> For remote connection visit the BDX wiki page
>> http://wiki.ge.infn.it/hps/index.php/BDX for instructions
>> or click this link to join
>> https://bluejeans.com/152283684?src=htmlEmail&g=mjqxi5dbm5wgszlsnfagozjonfxgm3ronf2a==== 
>>
>> Talks to you soon
>> Cheers
>> Marco
>>
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