ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 1

ATLAS MDT-ASDOperational Tests at Harvard

George BrandenburgMichelle Dolinski

Peter HurstMatt NudellJohn Oliver

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 2

Test Setup Overview

• Octal Mezz Boards (latest rev) with 3 ASDs each– 16 4x6 boards mounted on an MDT chamber

– 16 3x8 boards with input terminators added

– 96 ASDs total

• Connected to CSM-0 via:– Adapterinos to convert to Mezz Lite cables

– Eighteen channel adapter to convert to RJ45 cables

• Readout by PC running MiniDAQ– Special version from Jeff Gregory - UMich

– Auto run sweeps over threshold and/or injection mask

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 3

ASD Threshold Sweeps

• Noise runs (no input signal) with threshold varied– Range: -50mv to +50mv in 2mv steps

– Nominal running threshold is -60mv

• Fit observed peak to Gaussian distribution• Center (offset) determines threshold stability

– Large offsets --> hot (or cold) channels

– See John Oliver talk for discussion

• Sigma is measure of channel noise – Average over all channels is 6mv

– Running with -60mv threshold --> very quiet!

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 4

Thresh Sweep Raw Data I

Threshold (mV)InjMaskChip #Ch 0 Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Ch 7 Ch 8 Ch 9 Ch 10 Ch 11 Ch 12 Ch 13 Ch 14 Ch 15 Ch 16 Ch 17 Ch 18 Ch 19 Ch 20 Ch 21 Ch 22 Ch 23-50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-46 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-44 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0-38 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-36 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-34 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0 0 0 0-32 0 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 92 0 0 0 0 0 0-30 0 0 0 0 0 0 0 0 0 8 18 0 0 0 0 0 0 194 0 0 0 0 0 0-28 0 8 0 0 0 0 0 0 0 0 27 0 0 0 0 0 0 459 0 0 0 24 0 0-26 4 8 0 0 0 8 0 0 0 16 104 0 0 0 0 0 0 996 4 0 0 116 8 0-24 24 34 16 0 0 0 8 0 16 40 324 0 8 40 0 0 0 1623 8 0 0 150 30 0-22 51 235 0 24 0 24 24 0 8 144 532 0 0 118 0 0 0 3362 3 0 0 305 67 0-20 177 396 74 24 8 32 62 0 34 169 1086 24 18 276 0 0 0 5202 32 8 0 719 156 0-18 319 888 96 53 61 69 203 8 152 583 2775 32 85 813 8 8 32 8211 96 48 16 1731 492 16-16 677 2018 276 178 160 222 470 8 386 1233 4242 144 204 1855 16 16 16 10038 162 144 56 2836 1209 8-14 1270 3853 578 566 312 522 1162 66 724 2555 6818 412 600 3503 94 24 22 11638 378 178 182 5066 2258 54-12 2588 6268 1121 999 1027 1295 1997 216 1663 4624 9317 839 1380 6055 224 168 78 11541 805 401 293 7428 4022 241-10 4332 8976 2736 2229 1924 2650 4129 422 2745 7513 10982 1920 2679 7658 593 380 262 9640 1778 954 951 8896 6458 792-8 6707 11065 5098 3999 3765 4362 6850 1195 4450 9579 10674 3804 4619 7823 1182 756 477 7431 3262 2165 1665 8084 8662 1413-6 9210 12423 7337 6515 5870 7419 9514 2256 6951 10730 9330 6241 7484 6112 2703 2069 1336 4860 5642 3828 3053 6252 9567 3261-4 11550 11834 9697 9286 8719 9571 11590 4068 9468 9959 7700 8904 9766 4990 4716 3184 2428 3130 7921 6353 5361 4383 8455 4401-2 12912 10056 11902 11608 10661 11126 10962 5913 11215 8028 5293 10831 10320 3573 7113 4118 4115 1478 10282 8832 8154 2904 6540 48350 12457 7185 12571 12664 11237 10946 9457 7154 11278 5499 3072 10871 9083 2004 9133 3095 6736 885 11765 11255 11049 1947 4292 37652 10524 4018 11118 12736 9331 8282 6358 6005 9560 3022 1524 8272 6503 1120 10074 1795 8963 526 11828 12126 11914 1378 3166 24884 8123 2192 8519 11014 6763 5812 4155 3905 6945 1293 669 5853 3860 447 8384 967 10829 205 10650 10803 11502 751 2048 17256 5495 930 5610 8903 4156 3154 2208 2087 4683 650 210 3296 1885 92 5918 335 9868 98 8280 8440 9593 396 1252 10038 2985 464 3398 5790 2186 1608 853 1004 2788 252 120 1514 710 32 3294 154 7512 32 5478 5800 6704 220 664 482

10 1719 150 1471 3633 1041 650 380 358 1274 61 24 546 400 16 1289 24 4861 24 3180 3370 4287 56 262 12012 816 72 687 1717 382 209 146 147 727 16 0 330 145 8 682 17 3069 8 1767 1919 2269 50 97 4114 456 0 315 805 196 110 40 70 380 16 0 46 108 0 228 0 1582 0 862 879 1051 8 32 2216 163 8 101 412 56 23 16 16 76 0 0 31 7 0 87 0 792 0 298 293 474 8 0 1518 60 8 40 140 24 0 24 0 36 8 0 8 0 0 40 0 264 0 191 119 176 0 0 020 24 0 32 61 16 0 0 0 18 0 0 0 0 0 0 0 151 0 64 19 56 0 0 022 32 0 8 18 8 0 0 0 8 0 0 8 0 0 0 0 80 0 24 16 16 0 8 024 16 0 0 16 0 0 0 0 0 0 0 0 0 0 0 0 32 0 0 8 0 0 0 026 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 16 0 0 0 0 0 0 028 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 030 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 032 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 034 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 036 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 038 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 040 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 042 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 044 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 046 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 048 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 050 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Mezz Board 434-01 (4x6)

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 5

Thresh Sweep Raw Data II

ASD 1 Threshold Sweeps

1

10

100

1000

10000

100000

-50 -40 -30 -20 -10 0 10 20 30 40 50

Threshold

Ch 0Ch 1Ch 2Ch 3Ch 4Ch 5Ch 6Ch 7

Mezz Board 434-01 (4x6)

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 6

Thresh Sweep Gaussian FitsMezz Board 434-01 (4x6)

Threshold Sigmas

0.00

2.00

4.00

6.00

8.00

10.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Channel

Sigma (mv)

Threshold Offsets

-15.00

-10.00

-5.00

0.00

5.00

10.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Channel

Offset (mv)

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 7

Offset Summary

(see John Oliver talk for yield estimate)

0

20

40

60

80

100

120

140

160

-24 -20 -16 -12 -8 -4 0 4 8 12 16 20 24

Offset (mv)

Offset distribution (815 channels)

σ = 4.5 mv

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 8

Gaussian Sigma Summary

Octal ASD Noise Run Threshold Sweep Channel Sigma Distributions (48 chips each)

Average = 5.8 mv (3x8), 6.1 mv (4x6)

0

10

20

30

40

50

60

70

3 4 5 6 7 8 9

Sigma (mv)

3x84x6

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 9

Charge Injection Sweeps

• Charge injection runs (signal approx. 300mv)• Utilize ASD internal injection circuit and mask • Sweep runs with injection mask varied

– First run has no channel injected

– Next 24 runs have successive channels injected

• 10K event runs: 100% efficiency and no cross-talk• Subtle (software?) effect seen:

– Some hits occasionally migrate to neighboring bin

– Not an ASD effect - DAQ buffer not cleared at run start

• One bad channel seen out of 96x8 = 768

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 10

Injection Sweep Raw Data

Ch 0 Ch 1 Ch 2 Ch 3 Ch 4 Ch 5 Ch 6 Ch 7 Ch 8 Ch 9 Ch 10 Ch 11 Ch 12 Ch 13 Ch 14 Ch 15 Ch 16 Ch 17 Ch 18 Ch 19 Ch 20 Ch 21 Ch 22 Ch 230 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 16 9985 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 16 9985 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 56 9945 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 24 9977 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001

Mezz Board 434-01 (4x6)

ASD 1 ASD 2 ASD 3

Note migration from ASD 3 Ch16 to ASD2 Ch15 --> NOT an ASD effect!

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 11

Injection Sweep Raw DataMezz Board 444-05 (4x6)

ASD 1 ASD 2 ASD 3

Note migration is to the right with reverse sweep --> Event buffer from previous run not cleared!

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 100010 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 9929 72 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 9945 56 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 9985 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

10001 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 12

MDT-ASD Test Summary

• Noise Run Threshold Sweeps– Threshold Offset distribution has Sigma = 4.5 mv

– --> 90% yield with QC cut at 10 mv spread per chip

– Threshold Sweep Gaussian Sigma average = 6 mv

– --> very quiet running at nominal threshold of -60 mv

• Charge Injection Channel Sweeps– 100% efficient with signal 5 x threshold (~300 mv)

– No channel cross-talk observed in 10K event runs

ATLAS MDT-ASD PRR – 30-August-2002 George Brandenburg – Page 13

Production Schedule - 6/02 Time Schedule for MDT Production Electronics

J F M A M J J A S O N D J F M A M J J A S O N D

HedgeHogs (HV & Signal)

Final Prototype TestingHedgeHog volume production

ASD development

Octal ASD Testing *ASD volume production

AMT-TDC development

AMT-2 Testing *AMT volume production

Octal Mezz development

Prototype I TestingFinal Prototype TestingMezz volume production & testing

On Chamber Readout Electronics

CSM-1 Prototype TestsSystem Test CSM-1 & MRODProduction

* PRR

2002 2003

2002 2003