Status of TRD SMint preparation as of January 2006

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Status of TRD SMint preparationas of January 2006

• David Emschermann
• Physikalisches Institut
• Universität Heidelberg

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The question
What can we achieve until June 2006 SM01 or
SM00.5 ?Can we build a complete Supermoduleor
only parts of it ?
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Official SMint status
Of course we can still build the first SM in
time. But we may have very little (or no) time
to test it !
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Official SMint status
Of course we can still build the first SM in
time. But we may have very little (or no) time
to test it !
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Now lets be more realistic
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Pros

• we have almost all ROB PCBs for SM01
• 50pc ROB 1A version 2 are being ordered
• ORI transmitter board seems ok
• acceptable noise on fully equipped C0 ROC
• ROB production in FZK now reliable
• Karlsruhe will equip all 228 ROBs for SM01
• equipping of first ROC for SM01 begins now
• IKF gets involved in electronics integration
• SMint activities not affected by plane
• transport and damage of Dubna ROCs

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Cons

• series equipping of ROBs in company is
• delayed by 2 months and did not yet start
• we found 4 bugs on or 7 ROB types
• gt need more ROB pre-series
• SM hull not available before February
• still no cooling on a single ROC
• LV power supplies delivery mid of March
• many (small) components are still to be
• ordered, delivered or produced this month
• all kinds of cables, optical fibers, more
• HV filter boxes, LV power bus bars,
• cable boards

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Conclusions

• we still need to switch to series mode
• we accumulated 6-8 weeks delay on average
• since October 2005 (in only 4 month !)
• we miss our planning by factor 2 in time
• extrapolating for SM integration (June 2)
• gt SM01 will be ready in December 2006
• This is currently a pretty good estimation !

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Outlook
What will happen if we do not install a
Supermodule at CERN in July 2006 ? Does it
really make sense to install an untested SM
? Could our installation timeslot be shifted
due to other constraints within ALICE ?
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STOP
We need to speed up and get even better organized
!
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Planning status I

• order new preseries only for ROB 1A V2,
• not all 7 types (optimise for cost and time)
• equipped ROBs for layer 4,5 are available
• at the earliest in early April (ROB 1A V2)
• PCB mass production immediately launched,
• once ROB 1A V2 tested ok (charge pump)
• GO for ROB PCB series production delayed
• series equipping company only for V2 ROBs
• we eat into series preparation for SM02
• first ROBs for SM02 series integration
• at IKF available only in June (not April)

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Planning status II

• no change of ROB supplier for layers 2-5
• gt smooth continuation after 2 layer test
• (we win a lot of time and save money
• by staying with FZK ROBs)
• ROB upgrade of stack done in parallel,
• if time allows (max 2 weeks in total)
• timeslot for beamtime 2006 shifted to
• Sep/Oct (after SM01 installation at CERN)

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Planning status III

• SM01 integration to start early Feb
• TMU must get available mid of Feb
• layers 0 and 1 integrated till end of Feb
• 2 layer test done with current LV PS
• By March (hopefully) we will know
• performance of TRD electronics in the SM
• integration time per layer (in manhours)
• Then, we can revise our planning schedule,
• any previous assumption is speculation.

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Lets roll !!
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Thank you
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Watch the time !!
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ROB types C0 chambers
FIBRE
1A
3A
1A
HCM OASE
2B
1B
3B
HCM OASE
DCS
FIBRE
5 out of 7 ROB types used on small ROCs
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ROB types C1 chambers
FIBRE
1A
3A
4A
1A
HCM OASE
2B
1B
3B
4B
HCM OASE
DCS
FIBRE
there are 7 different ROB types in total