L0 Technical Readiness Review-Electronics Installation 9.27.05 Linda Bagby L0 Electronics Installation System Electronics Overview u Low Voltage s Filter

L0 Technical Readiness Review-Electronics Installation 9.27.05

Linda Bagby

L0 Electronics Installation

System Electronics Overview Low Voltage

Filter design High Voltage RTD-Carbon Fiber Temperature Monitoring

Filter design Readout

Prep Work Summary


Linda Bagby

System Electronics

The L0 Upgrade electronics consist of 4 systems. Isolated Low Voltage Power Supply

Wiener PS-Filter-Fuse Panel-PS Interlock-CAN bus interface

High Voltage Power Supply HV crate-Fanout Chassis (2 units)

RTD Temperature Monitoring RTD-Flex-Filter-32AWG-26AWG-Controller

Readout Junction Card-Twisted pair cable-Adapter Card


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Isolated Low Voltage System


Linda Bagby

Components installed

Installed and Tested 2 Fuse Panels East and West Side

Collision Hall

Installed and Tested Wiener Power Supply Safety Interlock

DAB


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LV Power Supply Filter

Sigma*10 noise ~ 5-7 ADC counts.

5 turns on ferrite core of power cable reduced noise to 3-3.5 cts.

Filter design in progress-need to shield from magnetic field.

Shielding box (filter) will be mounted under fuse panel in cathedral area.

counts

counts

channel

channel


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Filter plans

Design prototype to test at SiDet 2 quadrants per chassis


Linda Bagby

Prep work remaining Design and test filter Operating parameters in EPICS database Test CAN bus interface via GUI in Control

Room

Work remaining in Collision Hall (3 days) Install filter in cathedral Cable Plant

12 twisted pair 10AWG cables – fuse panel filter– filtergauge change panels on horseshoe

12 twisted pair 22AWG cables– gauge change panels AC.

LV PS work remaining


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High Voltage System

1st crate (L0) with 48 pods and power supply tested and installed in the 100% test stand at SiDet.

Pods modified to accommodate lower current. 2nd 48 pod crate (SMT) load tested and ready

for installation. Prep work:

Order HV cables. Work remaining in MCH (2-3 days):

Install 2 HV crates-1st from SiDet, 2nd in house. Install 2 Fanout chassis. Install 48 SHV cables from pods to Fanout chassis. Remapping of Inner H-disk channels. Redistribute fanout for additional 48 channels.

Work remaining in Collision Hall: None


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RTD system

Monitors carbon fiber structure temperature. Testing at SiDet has uncovered noise coupling

into the readout from RTD flex circuits. 32 AWG cable shielding tied to isolated

ground at AC removed noise.

8 1

36 conductor

Hirose

L0 Isolated GND

36 conductorx8


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Filter SPICE Model

FILTER RTD

Controller Controller


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Filter Response

Model illustrates >60dB attenuation.

Rs need to be tweaked to accommidate Controller capability.

Studies underway to determine maximum lead R.

Ready to layout prototype board.

1KHz

5mV

40mV

-60dB-74dB


Linda Bagby

RTD System

Prep work Design, test, and manufacture filter card-shielding

scheme. How much lead resistance can Controller tolerate?

– Latest studies show the Controller can handle 3K Ohm per lead. Channel variations are linear and can be calibrated out as was done with the current SMT.

Will just a filter work, a cable shield, or a combination of both?

– Filter:Cs need a connection to detector ground in the vicinity of the junction card ring. Not clear how this connection will be made.(Perhaps 3426AWG card is easier place to put filter.)

– Shield:Requires a connection to L0 isolated ground. This can be done at the horseshoe but need to be careful..returns are quadrant specific due to LV distribution scheme. Leads to another issue—3426AWG boards. Current design has one per end. Will probably have to go to two due to location of isolated gnd connection points.This translates into installing 2 cables from the gap to Controller electronics.


Linda Bagby

RTD System

Work remaining in Collision Hall Connect RTD flex circuits to filter cards

(Hirose). Install 2 (probably 4) 3226 AWG boards

on horseshoe. Connect 32 AWG cables. Install Controller cable from horseshoe to

Controller rack on platform.


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Readout-Junction Card

Junction Card and Twisted pair cable6 per ring — 12 per end

Junction Card Mounting Ring2 rings per end


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Readout-Junction Card

Work in Collision Hall Connect digital jumper cable from detector

to Junction card. Mount junction card. Test channel, complete first tier ring of 6

on each end. Install second tier mounting ring. Mount remaining 6 junction cards, test.


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Readout-Adapter Card

Work in Collision Hall Remove 24 old ACs and

standoffs. Install 12 new ACs and

mounts – 3 per quadrant.

Route 48 twisted pair cables from junction cards to ACs.

Connect cables: twisted pair (4/cd), power(4/cd), clock (16/cd), 80 conductor (2/cd).

Test L0 DAQ channel (2/card).

Adapter Card Installed on Horseshoe


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Horseshoe Positions

Positions for the temperature monitoring gauge change panels, LV gauge change panels, and Adapter Cards were determined based on the existing DAQ cable map.

Every effort has been made to minimize the number of cable moves required to integrate L0 into the current system.

Since the Outer and Inner H-disk low mass cables are combined on one old AC, it is necessary to move half of the Inner H-disk low mass cables (48). The open channels will be used for L0.


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Sector 1 Low Mass Moves Open Positions for Sector 1 44B2 to 35C1 44, 45, 46, 52 45C2 to 36B1 46C2 to 36C1 52C2 to 43C1

Sector 2 Low Mass Moves Open Positions for Sector 2 29B2 to 22C1 29, 30, 31, 37 30C2 to 23B1 31C2 to 23C1 37C2 to 28C1

Sector 6 Low Mass Moves Open Positions for Sector 6 57C2 to 50C1 57, 58, 59, 65 58C2 to 51B1 59C2 to 51C1 65C2 to 56C1

NorthEastS1: 45,46S2: 30,31S6: 57,58

LV AWG

AC

RTD board position

dependant on filter design


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Sector 3 Low Mass Moves Open Positions for Sector 3 16C2 to 09C1 16, 17, 18, 24 17C2 to 10B1 18C2 to 10C1 L0 Prototype in 16, 17 24C2 to 15C1

Sector 4 Low Mass Moves Open Positions for Sector 4 02C2 to 11C1 02, 03, 04, 05 03C2 to 76C1 04C2 to 77B1 05B2 to 77C1

Sector 5 Low Mass Moves Open Positions for Sector 5 70C2 to 63C1 70, 71, 72, 78 71C2 to 64B1 72C2 to 64C1 78C2 to 69C1

NorthWestS3: 16,17S4: 02,03S5: 70,71

AC

LV AWG


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Sector 3 Low Mass Moves Open Positions for Sector 3 36C2 to 28C1 36, 37, 38, 46 37C2 to 29C1 38C2 to 30C1 46C2 to 35C1



SouthWestS3: 36,37S4: 51,52S5: 64,65

LV AWG

AC


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SouthEastS1: 10,11S2: 23,24S6: 76,77

AC

LV AWG





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SE_1 Mapping

0B H Inner I III I / III I III I III III II / IV

12 13 14 15 16 17 18 19 20 21B_3 B_9 B-9 B_6 B_6 B_9 F_6 F_8 2.2-1.1

B_3 B_9 B_9 B_6 B_6 B_9 F_6 F_8 1.2-2.24

B_3 B_9 B_6 B_9 F-6 F-8 2.1-1.24

B_6 B_9 2.3-1.3

1B L0 II II / III III

15 16 17F-8 L0-1-56

F-6 F-8 L0-1-78

F-6 F-8 OPEN

F-6 OPEN

0B SEQ6 H Inner L0I III I / III I I III III II II / IV IV

12 13 14 15 16 17 18 19 20 21B_3 B_9 B-9 B_6 B_9 F_6 F_8 F-6 2.2-1.1 L0-1-56

B_3 B_9 B_9 B_6 B_9 F_6 F_8 F-6 1.2-2.24 L0-1-78

B_3 B_9 B_6 B_6 B_9 F-6 F-8 F-6 2.1-1.24 OPEN

B_6 B_6 B_9 F-8 F-8 F-8 2.3-1.3 OPEN

M211-1 HO | HI L0B(1) |A(2)

9 10 11 12 13 14 15 16 17 18 19B_3 B_9 B-9 B_6 B_9 0 F_6 F_8 F-6 2.2-1.1 L0-1-56

B_3 B_9 B_9 B_6 B_9 1 F_6 F_8 F-6 1.2-2.24 L0-1-78

B_3 B_9 B_6 B_6 B_9 2 F-6 F-8 F-6 2.1-1.24 OPEN

B_6 B_6 B_9 3 F-8 F-8 F-8 2.3-1.3 OPEN

IB

Sequencer

VRB


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SEQ fibers

Layer Zero utilizes VRB slots previously used by H-disks.

H-disks were not used in the STT trigger.

To integrate Layer Zero into the trigger, SEQ fibers need to be moved from the associated VRB crates to the splitters mounted on the wall in MCH2.

Work in MCH2 Reroute 2 fibers/VRB crate (24 total) to

splitter. Install 2 fibers/splitter to VRB crates.


Linda Bagby

Prep Work Summary

LV system Design and test filter.

HV system Install 1 crate, order SHV cable.

RTD system Design and test filter-shield.

Readout SEQ-splitter fiber plant.

Documents

L0 Technical Readiness Review-Electronics Installation 9.27.05 Linda Bagby L0 Electronics Installation System Electronics Overview u Low Voltage s Filter