Service box / Patch panel Cabling detector counting room Power supplies LV and HV LHCb Outer Tracker Services and Infrastructure.

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Presentation transcript:

Service box / Patch panel Cabling detector counting room Power supplies LV and HV LHCb Outer Tracker Services and Infrastructure

Module Electronics Box HV1HV2I2C1I2C2 +5v/2.5A -5v/1.6A Fiber (gol) LVECS -Temp -Volts TFC sub1 TFC sub2 Gas2 Gas1

Module Electronics Box without shielding box

The Hall in 3d

Outer Tracker with 3Stations and 24 Service Boxes (status proposal still to be discussed, depending on mechanics) BEAM STATION 1 STATION 2 STATION 3 Service box Curtain1.1.rightCurtain1.1.left Curtain1.2.right To Counting Room Module Electronics Boxes

A Curtain move out to reach electronics easily BEAM STATION 1 STATION 2 STATION 3 Service box Curtain1.1.rightCurtain1.1.left Curtain1.2.right To Counting Room Cabling to Counting Room

Old type Service box for 2 curtains (4  )

A Service Box for 1 Curtain 2 outputs

DC SPECS HV The Cables of 1 Service Box going to counting room TFC fiber Data fibers 18* 1Gb/s 3 cm 4 cm DC +5V /50A 12mmdiam DC 0/50A 12mm diam DC-5V 40A 12mm diam DC 0 40A 12mm diam HV 36/52* 2.5KV, 15mm diam SPECS STP 4pairs 5 mm diam. TFC 1 optical fiber 3 mm diam Data fiber 18 * 3mm diam

Interface to ECS Service Box 1 Detector area Counting Room area Wall Service Box 24 SPECS slave inside I2C 9 connections 1 Jtag chain internal for 18 Alcapone chips 24 SPECS cables 24 specs master outputs

Service Box 1 Detector area SPECS slave inside I2C 9 daisy chained connections 1 Jtag chain on Service Box for 18 Alcapone chips I2C for OTIS and GOL Interface to ECS 2 I2C 9 daisy chained connections

Interface to TFC 1 Service Box 1.1.left Detector area Counting Room area Wall Service Box 24 TTCrx inside 2 TFC fibers 18 TFC-sub cables LEFT SIDE SEGMENT Service Box 1.1.right Service Box 3.2.left TTCocOptical Splitter 12/16 Service Box

Interface to TFC 2 Service Box 1.1.left Detector area Counting Room area 18 TFC- distr cables Service Box Left side curtain TTCrxLVDS buff B channel decoder Actel 54SXxx Detector Electronics OTIS CLK BX RESETS L0 trig ECS GOL ASD RJ45 diff Optical splitter

Detector cabling and grounds Which ground connections do we have Signal ground Safety ground, Frames Supply grounds Connection to Counting room Connection to Other Detectors

TCF Optical Splitter #1 data fibers (#432) Service box Slave Detector Alu plane TDC Amp Opto Transm Regu- lators TDC Amp Opto Transm Regu- lators Foil 5 m long 12um*34cm Rseries= 21 milli-ohm Detector Alu plane TDC Amp Opto Transm Regu- lators TDC Amp Opto Transm Regu- lators Foil 5 m long 12um*34cm Rseries= 21 milli-ohm HV Supplies 2.5 KV/200uA with floating outputs +5V / 50A typ -5V / 35A typ } ECS SPECS Masters TCF Frame TCF fibers (#2) L1 Electronics Thick DC cables 50mm2 (24*4=96) ECS cables (#24) } { { TCF Optical Splitter #2 Multi Wire HV Cables 1,5cm thick #24 HV #18 2.5KV/200uA LV #18 ECS } } } I2C MAIN 80m CABLE DUCT Other Deterctor Central Safety Ground Detector Cabling

The Cables of OT in the 100m Cable Duct (total 24 Service Boxes, about Realistic Size on A4) 2 TCF fibers Cables from 1 Service Box 15 cm 22 cm

LV supplies / Patch Panel Each MODULE ELECTRONICS BOX needs +3V/1.6A, -3V/1.6A, +2.5V /~1A Too critical to supply remotely (deviation <+0.1/-0.1V) Radiation Hard Regulators from CERN used. Remote Supply 5V on detector (Regulators need extra voltage) Corners of the Detector have 18 Module Electronics Boxes to feed. So +5V/ ~50A typical, -5V / 40A typical (->50A) THE SERVICE BOX SERVES AS PATCH PANEL Cables 4 * ~50mm2 50A, 1.7V drop over 100 m LV Supplies in Counting room for each of the 24 Service Boxes with 24 times +5V/50A and 24 times +5V/ 40A Plus and Minus have separate ground cables, not combined ! Outputs are “Floating”, Grounded ON DETECTOR Patch panels on Service Boxes

HV supplies / patch panels Module needs 2.5KV, 200uA max for 128 channels. ( typical; 1.5KV / 10uA ) Current limiting without damage of detector (0-200uA levels ok) Ground On Detector, HV Supplies semi floating. (safety rules respected) First fan out on Service Box (patch panel 1) Multi Wire HV Shielded Cable ( 2*18=36 wires) to Counting Room supplies Patch Panel2 in Counting Room Used for further combining of module layers(also used for fuse handling) HV supplies in Counting Room proposed 432 (+spare) outputs for 0-2.5KV/ 200uA in about 3 crates ECS prepared ( for instance CAEN 1527 equipped with modules) DETAILS OF DESIGN 2 layers of module each have own connector. But are combined with 1other layer HV Fuses would need “extra local supply of 1.5KV 2mA”

Count Room Patch Panel Main HV Supply Incl LV for distributors modules/curtain (=36 wires) Corner Service box Detector Area (Radiation Area) Count Room Area (Radiation Free Area) Radiation Protection Wall HV cabling schematic

Cooling…… No Heat dump in Hall, Hall- air conditioner can handle 80KW total Mixed water for : no condensation on HV parts 19C = above dew point Module Electronics needs to be cooled also in view of high packing density Counting Room Crates cooled by LHCb standards, “intercoolers” etc.

Cooling the LHCb Outer Tracker electronics Detector Electronics L1 Crates Wall Counting room Detector LV CratesHV Crates Feb 2003/TS

Dowel Pin Electronics box Cooling flap Thermal isolation Module hanger Cooling plane Detector Electronics Cooling Possibility ( IN STUDY) Module with straws Enlarged module ends side view Rotated modules front view

Station 1 Hanging frame 1 Module spacer / Thermal isolation Curtain Guide Possible Cooling of Detector Electronics for OT stations curtain 1curtain 2curtain 1curtain 2curtain 1curtain 2 Station 2Station 3 225W typ

1 module 25W typical 9 modules in a layer= 225W 2 layers in a curtain, (separate cooling tubes) = 450W 2 curtains in a station = 900W at the top corner Also 900W at the bottom corner This means 1800W per station left, and 1800W per station right. = 3600W/station 3 stations = 10800W typical power capacity needed. We need to move the curtains 2.5 to 3 meters, This needs Flexible hoses, Cooling capacity needed

Cooling wish-list: ”Mixed water” from O.T regulated circuit 19 degree C Flow and pipe diameters to be determined Closing valves at each station manifold

Expected 10 KRAD Rad Tolerant components used –On Detector Electronics: HV board 32 ceramic HV capacitors, 32 resistors, 32 springs Preamp board ASDBLR + resistors, capacitors, protection diodes (like atlas TRT, 1Mrad ) TDC board : OTIS 0.25um, rad-hard lib Optical transmitter + auxillary board: –1 GOL CERN Rad hard, 1 optical transmitter (VCSEL) –4 Voltage Reg. Rad Hard –TFC trig, clk, resets LVDS input from distribution box –I2C in/out OTIS Radiation Tolerance1

Radiation Tolerance2 Expected 10 KRAD Rad Tolerant components used –On Detector Electronics 2: Distribution box –Alcapone gate all around, also adc, »Alcapone from alice 4 ch 8 bits 0.25um, rad tol, rad hard lib, jtag readout/control »Power up reset needed for ADC … out of SPECS slave –TTCrx + lvds+ decoder in atmel antifuse, triple vote…… still in study –Specs Slave 10KRad with I2C buffer and Jtag lvds buffer ….. Saclay Perhaps combine with Specs slave with TTC decoder in Atmel.

Conclusion Infrastructure concept in proposal stage based on LHCb- light Number of cables (even curtains) not fixed yet due to mechanic construction uncertainties Talks with ECS / SPECS and TCF for consensus have to start.

Some Problems to Solve …….. 1 When do we install cables, who does it 2 Need for Rad. Tol. lvds buffers, (QPLL, and Antifuse logic) etc. 3 Radiation Tolerant Supplies cheaper? (reduced cabling and installation) 4. SPECS grounding currents ? safety grounds potential difference between detector and Counting Room garanteed to be < 100mV??