Difference between revisions of "CDC bad channels"

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(High end bits not populated)
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Data from run 1286, histograms of adc sample values, first 20k events
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Run 11663
 
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== Missing bits ==
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{| border="0" cellpadding="2"
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|+ roc 26 slot 3
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|[[Image:cdc_roc26_slot3_ch30.png|thumb|x200px|run 1286 roc 26 slot 3 channel 30 - bit 3]]
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|[[Image:cdc_roc26_slot3_ch50.png|thumb|x200px|run 1286 roc 26 slot 3 channel 50 - bit 5]]
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|[[Image:cdc_roc26_slot3_ch56.png|thumb|x200px|run 1286 roc 26 slot 3 channel 56 - bit 9]]
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|-
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|[[Image:cdc_roc26_slot3_ch57.png|thumb|x200px|run 1286 roc 26 slot 3 channel 57 - bits 0, 3]]
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|[[Image:cdc_roc26_slot3_ch58.png|thumb|x200px|run 1286 roc 26 slot 3 channel 58 - bit 3]]
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|}
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+
 
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{| border="0" cellpadding="2"
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|+ roc 27 slot 16
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|[[Image:cdc_roc27_slot16_ch35.png|thumb|x200px|run 1286 roc 27 slot 16 channel 35 - bit 4]]
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|[[Image:cdc_roc27_slot16_ch59.png|thumb|x200px|run 1286 roc 27 slot 16 channel 59 - bit 7]]
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|}
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{| border="0" cellpadding="2"
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|+ roc 28 slot 15
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|[[Image:cdc_roc28_slot15_ch32.png|thumb|x200px|run 1286 roc 28 slot 15 channel 32 - bit 2]]
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|}
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<pre>
 
<pre>
List of missing bits
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No hits in straw n=3      A3    rocid==25&&slot==3&&channel==5
 
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Few hits in straw n=709  K39  rocid==27&&slot==8&&channel==13  disconnected
ROC 26 slot 3 channel 30 missing bit 3
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Few hits in straw n=2384 W38  rocid==25&&slot==14&&channel==25 disconnected
 
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No hits in straw n=2873  Y73  rocid==26&&slot==15&&channel==24
ROC 26 slot 3 channel 50 missing bit 5
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No hits in straw n=2964  Z57  rocid==27&&slot==16&&channel==49
 
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No hits in straw n=3150  AA46  rocid==25&&slot==17&&channel==68
ROC 26 slot 3 channel 56 missing bit 9
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No hits in straw n=3151  AA47  rocid==25&&slot==17&&channel==65
 
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No hits in straw n=3372  BB59  rocid==27&&slot==16&&channel==50
ROC 26 slot 3 channel 57 missing bit 0
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ROC 26 slot 3 channel 57 missing bit 3
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ROC 26 slot 3 channel 58 missing bit 3
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ROC 27 slot 16 channel 35 missing bit 4
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ROC 27 slot 16 channel 59 missing bit 7
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ROC 28 slot 15 channel 32 missing bit 2
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</pre>
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== Noise in missing channels? ==
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The first of these should be ring 13, straw 17; the other channels are not in use, slot 4 channels 48-71 are not connected to anything
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{| border="0" cellpadding="2"
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|+ roc 25 slot 9
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|[[Image:cdc_roc25_slot9_ch14.png|thumb|x200px|run 1286 roc 25 slot 9 channel 14 - ring="13" straw="17"]]
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|}
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{| border="0" cellpadding="2"
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|+ roc 26 slot 4
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|[[Image:cdc_roc26_slot4_ch49.png|thumb|x200px|run 1286 roc 26 slot 4 channel 49 (20k events) - channel not in use]]
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|[[Image:cdc_roc26_slot4_ch49more.png|thumb|x200px|run 1286 roc 26 slot 4 channel 49 (100k events)]]
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|-
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|[[Image:cdc_roc26_slot4_ch62.png|thumb|x200px|run 1286 roc 26 slot 4 channel 62 - channel not in use]]
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|[[Image:cdc_roc26_slot4_ch63.png|thumb|x200px|run 1286 roc 26 slot 4 channel 63 - channel not in use]]
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|[[Image:cdc_roc26_slot4_ch65.png|thumb|x200px|run 1286 roc 26 slot 4 channel 65 - channel not in use]]
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|}
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<pre>
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Many bits missing from same channel (content of filled bins could be noise)
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ROC 25 slot 9 channel 14 missing bit 0
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ROC 25 slot 9 channel 14 missing bit 1
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ROC 25 slot 9 channel 14 missing bit 2
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ROC 25 slot 9 channel 14 missing bit 7
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ROC 25 slot 9 channel 14 missing bit 9
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ROC 25 slot 9 channel 14 missing bit 10
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ROC 26 slot 4 channel 49 missing bit 4
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ROC 26 slot 4 channel 49 missing bits 7 to 11
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ROC 26 slot 4 channel 61 missing bit 3
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ROC 26 slot 4 channel 61 missing bit 4
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ROC 26 slot 4 channel 61 missing bits 7 to 11
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ROC 26 slot 4 channel 62 missing bit 3
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ROC 26 slot 4 channel 62 missing bit 4
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ROC 26 slot 4 channel 62 missing bits 7 to 11
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ROC 26 slot 4 channel 63 missing bit 4
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ROC 26 slot 4 channel 63 missing bits 7 to 11
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ROC 26 slot 4 channel 65 missing bit 3
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ROC 26 slot 4 channel 65 missing bit 4
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ROC 26 slot 4 channel 65 missing bits 7 to 11
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+
 
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</pre>
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== High end bits not populated ==
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These are mostly strawless channels. 
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{| border="0" cellpadding="2"
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|+ roc 25 slot 8
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|[[Image:cdc_roc25_slot8_ch35.png|thumb|x200px|run 1286 roc 25 slot 8 channel 35]]
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|[[Image:cdc_roc25_slot8_ch37.png|thumb|x200px|run 1286 roc 25 slot 8 channel 37]]
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|}
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<pre>
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High end bits missing (not necessarily a problem, signals could have been small, could be strawless channels)
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ROC 25 slot 8 channel 35 missing bits 9 to 11 - connected to transition board but no straw - betw E8 and E7
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ROC 25 slot 8 channel 37 missing bits 9 to 11 - connected to transition board but no straw - betw E8 and E7
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ROC 25 slot 9 channel 37 missing bits 8 to 11 - connected to transition board but no straw - betw ring 14 straw 19 and ring 14 str 18
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ROC 25 slot 9 channel 59 missing bits 8 to 11 - connected to transition board but no straw - betw ring 29 str 21 and ring 19 straw 19
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ROC 25 slot 10 channel 61 missing bits 8 to 11 - connected to transition board but no straw - bet r 26 str 16 r 27 str 16
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ROC 25 slot 13 channel 13 missing bits 8 to 11 - connected to transition board but no straw - r 22 str 22 & r 20 str 21
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ROC 25 slot 13 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 25 slot 14 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 25 slot 14 channel 59 missing bits 8 to 11 - connected to transition board but no straw
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ROC 25 slot 16 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 25 slot 16 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 25 slot 17 channel 59 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 4 channel 7 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 4 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 4 channel 48 missing bits 7 to 11 - channels 48 to 71 are not in use
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ROC 26 slot 4 channel 60 missing bits 7 to 11 - channels 48 to 71 are not in use
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ROC 26 slot 5 channel 13 missing bits 9 to 11 - connected to transition board but no straw - r 11 s 100 & r 11 s 99
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ROC 26 slot 6 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 6 channel 61 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 7 channel 13 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 9 channel 33 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 9 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 13 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 13 channel 61 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 14 channel 61 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 15 channel 61 missing bits 8 to 11 - connected to transition board but no straw
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ROC 26 slot 16 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 3 channel 37 missing bits 8 to 11 - connected to transition board but no straw - r 5 str 30 & r 5 str 29
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ROC 27 slot 3 channel 61 missing bits 8 to 11 - connected to transition board but no straw - r 8 str 35 & r 88 str 34
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ROC 27 slot 4 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 4 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 5 channel 13 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 5 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 7 channel 17 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 7 channel 41 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 8 channel 61 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 9 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 9 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 9 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 10 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 13 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 15 channel 59 missing bits 8 to 11 - connected to transition board but no straw
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ROC 27 slot 16 channel 11 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 5 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 6 channel 65 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 7 channel 13 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 9 channel 35 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 10 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 14 channel 31 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 14 channel 37 missing bits 8 to 11 - connected to transition board but no straw
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ROC 28 slot 16 channel 47 missing bits 8 to 11 ********** ring="15" straw="97" *********
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ROC 28 slot 16 channel 59 missing bits 8 to 11  - connected to transition board but no straw
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</pre>
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== Absent channels ==
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<pre>
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Channels missing altogether
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Missing channel ROC 25 slot 6 channel 17 - not in use
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Missing channel ROC 25 slot 7 channel 11 - not in use
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Missing channel ROC 26 slot 3 channel 59 - not in use
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Missing channel ROC 26 slot 4 channel 50 - channels 48 to 71 are not in use
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Missing channel ROC 26 slot 4 channel 51
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Missing channel ROC 26 slot 4 channel 52
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Missing channel ROC 26 slot 4 channel 53
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Missing channel ROC 26 slot 4 channel 54
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Missing channel ROC 26 slot 4 channel 55
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Missing channel ROC 26 slot 4 channel 56
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Missing channel ROC 26 slot 4 channel 57
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Missing channel ROC 26 slot 4 channel 58
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Missing channel ROC 26 slot 4 channel 59
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Missing channel ROC 26 slot 4 channel 64
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Missing channel ROC 26 slot 4 channel 66
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Missing channel ROC 26 slot 4 channel 67
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Missing channel ROC 26 slot 4 channel 68
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Missing channel ROC 26 slot 4 channel 69
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Missing channel ROC 26 slot 4 channel 70
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Missing channel ROC 26 slot 4 channel 71
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Missing channel ROC 26 slot 16 channel 13 - connected to strawless transition pad
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Missing channel ROC 27 slot 15 channel 20 ** ring="13" straw="32"
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Missing channel ROC 27 slot 15 channel 21 ** ring="12" straw="28"
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Missing channel ROC 27 slot 15 channel 22 ** ring="13" straw="31"
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Missing channel ROC 27 slot 15 channel 23 ** ring="11" straw="28"
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Missing channel ROC 27 slot 15 channel 49 ** ring="18" straw="42"
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Missing channel ROC 27 slot 16 channel 62 ** ring="28" straw="55"
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Missing channel ROC 28 slot 17 channel 21 ** ring="21" straw="117"
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low gain straws
Missing channel ROC 28 slot 17 channel 29 ** ring="24" straw="136"
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Low gain in straw n= 244  E52  4.000  !  rocid==26&&slot==13&&channel==35
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Low gain in straw n= 2977  Z70  1.375  !  rocid==27&&slot==9&&channel==57
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Low gain in straw n= 3178  AA74  1.373  !  rocid==27&&slot==9&&channel==56
  
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Low-gain HVB group  rocid==26&&slot==15 chan 48+
 +
n= 3064-3070, 3270-3277, 3479-3486
 
</pre>
 
</pre>

Revision as of 15:30, 14 June 2016

Run 11663

No hits in straw n=3      A3    rocid==25&&slot==3&&channel==5
Few hits in straw n=709   K39   rocid==27&&slot==8&&channel==13  disconnected 
Few hits in straw n=2384  W38   rocid==25&&slot==14&&channel==25 disconnected
No hits in straw n=2873   Y73   rocid==26&&slot==15&&channel==24
No hits in straw n=2964   Z57   rocid==27&&slot==16&&channel==49
No hits in straw n=3150   AA46  rocid==25&&slot==17&&channel==68
No hits in straw n=3151   AA47  rocid==25&&slot==17&&channel==65
No hits in straw n=3372   BB59  rocid==27&&slot==16&&channel==50

low gain straws
Low gain in straw n= 244   E52   4.000  !  rocid==26&&slot==13&&channel==35
Low gain in straw n= 2977  Z70   1.375  !  rocid==27&&slot==9&&channel==57 
Low gain in straw n= 3178  AA74  1.373  !  rocid==27&&slot==9&&channel==56 

Low-gain HVB group  rocid==26&&slot==15 chan 48+ 
n= 3064-3070, 3270-3277, 3479-3486