Update%20on%20ID%20Barrel%20End%20Region

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Update on ID Barrel End Region TJFraser WP7
meeting 03.12.07
The following slides show the minimum space
required by services from the 5 barrels and
inner EC services. Two options are shown one
the current Strawman Layout and the other
alternative where the outer two barrels are
reduced in length so that all 5 layers are
the same. The radii are the same as shown
previously. Note that the thermal barrier
follows the Warm gap option here (see slides
from previous meeting) as it is necessary to make
allowances for this together with services
in calculating the total space required. Opto
converter PCBs are shown further away form
barrel ends where there is more space but the
distances are severely limited.
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current baseline layout services line ends
short SS barrels and inner surface of LS layers
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2
1
see drawings Detail 1, 2 and 3
3
services from inner barrel must share space with
EC sections inside LS barrel see drawing
Detail 2
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Alternative reduces outer LS barrels to
the same length as the SS inner barrels 1, 2
and 3 Advantage for services material and
handling as removes two right angle bends.
see drawing Detail 4 for x-section through
services B3, 4 and 5
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