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Test of readout chambers – Summary of C side. Readout Chambers under further investigation. C05. C16 IROC anomalous anode wires. C02 IROC anomalous anode/edge wire. C07. C04 OROC anomalous anode wires. C08. C09. C05 IROC anomalous anode wire. C10. C05 OROC

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slide1

Test of readout chambers – Summary of C side

Readout Chambers

under further investigation

C05

  • C16 IROC
  • anomalous anode wires
  • C02 IROC
  • anomalous anode/edge wire

C07

  • C04 OROC
  • anomalous anode wires

C08

C09

  • C05 IROC
  • anomalous anode wire

C10

  • C05 OROC
  • anomalous anode wire

C11

C12

  • C06 OROC
  • floating gating grid wire
  • C07 OROC
  • anomalous anode wire
  • C08 OROC
  • anomalous anode wire

ROC without “floating” wires

ROC with “floating” wire(s) either anode or gg

slide2

C00 - IROC

Va = 1350 V

Va = 1380 V

Va = 1420 V

slide3

C00 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide5

C01 - IROC

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide6

C01 - OROC

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide8

C02 - IROC

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide9

C02 - OROC

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide11

C03 - IROC

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide12

C03 - OROC

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide14

C04 - IROC

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide15

C04 - OROC

Va = 1650 V

Va = 1600 V

slide17

C05 - IROC

Va = 1380 V

Va = 1350 V

Va = 1390 V

slide18

C05 - OROC

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide20

C06 - IROC

gain variation ±17%

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide21

C06 - OROC

gain variation ±21%

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide23

C07 - IROC

gain variation ±14%

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide24

C07 - OROC

gain variation ±14%

Va = 1600 V

Va = 1650 V

Va = 1700 V

slide26

C08 - IROC

gain variation ±17%

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide27

C08 - OROC

Va = 1600 V

Va = 1650 V

Va = 1670 V

slide29

C09 - IROC

gain variation ±20%

Va = 1350 V

Va = 1380 V

Va = 1430 V

slide30

C09 - OROC

Va = 1600 V

gain variation ±20%

Va = 1650 V

Va = 1700 V

slide32

C10 - IROC

gain variation ±15%

Va = 1380 V

Va = 1350 V

Va = 1430 V

slide33

C10 - OROC

gain variation ±12%

Va = 1650 V

Va = 1600 V

Va = 1700 V

slide35

C11 - IROC

gain variation ±11%

Va = 1380 V

Va = 1350 V

Va = 1430 V

slide36

C11 - OROC

Va = 1650 V

Va = 1600 V

Va = 1700 V

slide38

C12 - IROC

gain variation ±15%

Va = 1380 V

Va = 1350 V

Va = 1430 V

slide39

C12 - OROC

gain variation ±24%

Va = 1650 V

Va = 1600 V

Va = 1700 V

slide41

C13 - IROC

Va = 1350 V

Va = 1400 V

Va = 1430 V

slide42

C13 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide44

C14 - IROC

Va = 1350 V

Va = 1400 V

Va = 1430 V

slide45

C14 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide47

C15 - IROC

Va = 1350 V

Va = 1380 V

Va = 1420 V

slide48

C15 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide50

C16 - IROC

Va = 1380 V

Va = 1350 V

Va = 1400 V

slide51

C16 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide53

C17 - IROC

Va = 1350 V

Va = 1380 V

Va = 1420 V

slide54

C17 - OROC

Va = 1550 V

Va = 1600 V

Va = 1650 V

slide56

Summary - gain

slide58

Example (worst) of a ROC with anomalous anode wire – C04 OROC

Va = 1600 V

Va = 1650 V

  • Signal in pad row 61 is 4 x nominal amplitude!
  • However, it reduces with time of operation see next slide
  • Further measurements and simulations in progress
slide59

Example (worst) of a ROC with anomalous anode wire – C04 OROC

Va = 1600 V

Va = 1600 V

Septembre 1, 16h:00

Septembre 2, 14h:00

Va = 1600 V

Va = 1600 V

Septembre 2, 15h:00

Septembre 2, 16h:00

slide60

Long term test – C05 IROC

Va = 1380 V

Va = 1380 V

Septembre 12, 10h:00

Septembre 12, 12h:00

Va = 1380 V

Va = 1380 V

Septembre 12, 17h:45

Septembre 12, 14h:45

slide61

Long term test – C05 OROC

Va = 1600 V

Va = 1650 V

Septembre 8

Va = 1700 V

slide62

Long term test – C05 OROC

Va = 1650 V

Va = 1650 V

Septembre 12, 10h:00

Septembre 12, 12h:00

Va = 1650 V

Va = 1650 V

Septembre 12, 17h:45

Septembre 12, 14h:45