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FE electronic box Construction of end piece OT module Electronic components Mechanics Cooling.

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Presentation on theme: "FE electronic box Construction of end piece OT module Electronic components Mechanics Cooling."— Presentation transcript:

1 FE electronic box Construction of end piece OT module Electronic components Mechanics Cooling

2 End-piece Feed trough boards at dummy

3 End-piece construction The OT module exists out of two identical panels holding 64 straws. 2 Feed trough boards connecting HV and gnd over full width to outside world

4 Electronic components Overview of boards Full or half module Stacking of boards HV and connector section

5 Electronic components Feed-trough board 2x HV-board 4x ASD-board 8x OTIS-board 4x GOL-board 1x

6 Full or half module GOL/OTIS board design is made in such a manner that it can switch from left to right

7 Stacking of boards 2 planes of 64 channels 32 channel HV-boards Each HV-board connects 2 ASD-boards 2 ASD-boards connect L or R OTIS OTIS-board L and R version GOL-board connects 4 OTIS-boards front and back plane

8 FE-box connection Fast replacement FE-box is fully decoupled from chamber full HV-enclosure Forces from gnd-spring are not on chamber Gnd spring over full width 128 gnd contacts on each side

9 FE box overview

10 Frame 3D

11 Cooling Location of dissipating areas Heat transport trough the frame Heat transport from chips to frame measurements

12 Dissipating areas Location of dissipating areas Heat transport trough the frame Heat transport from chips to frame

13 ASDBLR COOLING CONSTRUCTION

14 PACKAGED FRONT END COOLING TEST The Front Ends of the Outer Tracker are closely packed, heat must be extracted with cooling water along the Aluminium cooling extension plate. For the test we use a cooling block with forced air Several sensors monitor heatup of components.

15 Proto Outer Tracker Front-End Tests 15 EFNI H K 35 C Otis 52 C ASDBLR NTC on copper 42C ASDBLR Input Diode 43C RESULTS AFTER SETTLING

16 25 50 30 35 40 45 12 Hours COOLING BASE 6321 RED ASDBLR NTC ON Copper Board SURFACE 42C BASEPLATE THERMOMETER 35C t=0 >power on REMARKS: 1.forced air cooling base with regulators, shifts 10C 2.ASDBLR steps up 5C in 2 minutes, then settles to 7C above plate 3. OTIS settles 17C above cooling flap part of baseplate OTIS Copper NTC 52C BLUE ASDBLR DIODE ~43C ASDBLR 17C 8C FIRST IMPRESSION FROM PAPER RECORDERS AFTER POWER SWITCH ON

17 FE- interfaces - 128p Conn to chamber - Ins/extr. mechanism - Cooling-block - 4x Gaspipes - LV - 4x HV - Slow-controls - Fiber-connection

18 Total amount of components 450 FE Boxes needed for the entire detector including 10% spare 133 mechanical components and 17 boards in one FE box 150 components/box Total 450x150 gives 675000 components Order to be placed june 2005

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