件名 : B3 On-Barrel Services[Fri, 4 Aug 2006 10:11:45 +0100]  
送信者 : Tricoli, A \(Alessandro\)<A.Tricoli@rl.ac.uk>  
宛先 : kondo@post.kek.jp  >>>  
Cc : taka.kondo@kek.jp  
 
Dear Pat, Taka and Stephen,

I inform you that the Excel Sheet for the Barrel 3 Material Budget that
I showed you at Cambridge and at the RAL meeting is now accessible from
the material budget web page:
http://hepwww.rl.ac.uk/Atlas-SCT/engineering/material_budget/models/OnBa
rrel_Services/B3_OnBarrelServices_v1.xls

I tried to implement the changes requested. 
In the "Summary" sheet you can find the version number, date and two
options: the first option implements two different volumes for the top
and bottom part of the bracket, the second merges the simulation of the
top part of the bracket with the dogleg (probably the best option since
it minimises the number of volumes). More information is given in the
"Bracket Assembly" and "TopBracket-Dogleg" sheets.
Furthermore in the Summary Sheet you can find a summary of the volumes
and some definitions of dimensions, i.e. barrel lengths, radii etc. I
tried to avoid clashing volumes.
The "Extra Calc" sheet shows some formulas and calculations I used in
the other sheets.
The only change I did not apply is the modelling of the straight part of
the harness as 6 boxes along z instead of one single box. I have been
thinking about that and I am not fully convinced that it is worth
introducing 2112 objects in the whole SCT instead of 352 and slowing
down the simulation, especially as Pat recommended to minimise the
number of volumes to speed up the simulation. However I am happy to
apply this change if you reckon it is necessary.
All other sheets have the same structure: at the top there is a list of
"Input Data", which I use to determine the "Simplified Model"
underneath. So all relevant information for Pat is under "Simplified
Model".
The first sheet, "Material", is a replica of the table made by Stephen
and it is used as a list of definitions of the compounds that appear in
the other sheets.
The FSI sheet is still under construction as I don't have the input data
to work on yet.

In the next few days I am aiming to put on the web similar Excel Sheets
for B4, B5 and B6. 
In the mean time I would be grateful if you could let me know your
opinion, comments etc.
Furthermore, I can write a short word document to explain the work
summarised in the excel file if you think it might help to understand
it.

Thank you,
Alessandro