Dear all,

I updated the excel sheets for B3, B4, B5 and B6 as you can see in
http://hepwww.rl.ac.uk/atlas-sct/engineering/material_budget/. These
files contain few changes:

1) in the sheet 'HarnessSplit' you can find an additional table which
redistribute the weights along the power tapes (from N1-N6 to T1-T6, see
drawing on the same sheet). This matches the current implementation of
the harness volumes in the simulation.

2) I moved on M1x4 screw from the 'bottom-harness' to the 'top-harness'
to match Taka's model.

3) I included the 'module grease' in the cooling block: the thermal
grease spread during the assembly in Oxford between the cooling pipe and
the module. Georg Viehhauser told me that the grease brand is Dow
Corning Heat Sink Compound 340. On the web I found that it is mainly
'silicone'. I added this component in the 'material' sheet, however I am
missing the organic group (R) in the definition of silicone, i.e.
[R2SiO]n, at the moment I am only considering SiO. If anyone has a more
cmplete formula for silicone please let me know.

Thank you,
Alessandro