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Report before Christmas N.Bondar 18.12.2008. Marathon modification According request of the VIENER we modified all LV power supplies by installing additional.

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Presentation on theme: "Report before Christmas N.Bondar 18.12.2008. Marathon modification According request of the VIENER we modified all LV power supplies by installing additional."— Presentation transcript:

1 Report before Christmas N.Bondar

2 Marathon modification According request of the VIENER we modified all LV power supplies by installing additional diode into the Primary Rectifier for muon detector. Total number of modules -19 pc.

3 M1 ECS cables measurement To measure ECS cable we are using a special tool based on the pulse reflectometer idea. Accuracy of this tool ~10cm  5 ns. The table of the results is in the E-Log.

4 Special tools was designed and made by Sasha Granik Pincers for plugging ground tail

5 Special tools was designed and made by Sasha Granik Pincers for unplug connectors

6 Comments to results Situazione cavi M1C 31/10/08 SBLunghezza effettiva caviRetested with the pulse reflectometer Num.cavoSB slotI2c Chanlen (m)length (m)delta (m) delta delta measured delay (ns) 126 EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-15A EC-M1C-16A EC-M1C-16A EC-M1C-16A EC-M1C-16A Some results have a very good agreement with Valerio’s table

7 120 EC-M1A-17A EC-M1A-17A EC-M1A-17A EC-M1A-17A EC-M1A-18A EC-M1A-18A EC-M1A-18A EC-M1A-18A EC-M1A-18A EC-M1A-18A EC-M1A-18A EC-M1A-18A SB Lunghezza effettiva caviRetested with the pulse reflectometer Num. Cable SB slot I2c Chan Len ( meters ) lungh (m) Len. (m) delta (m) delay (ns) delta delta Some results have offset about 1.5 ns

8 026 EC-M1A-30A EC-M1A-30B EC-M1A-30C EC-M1A-30D EC-M1A-31A EC-M1A-31B EC-M1A-31C EC-M1A-31D EC-M1A-32A EC-M1A-32B EC-M1A-32C EC-M1A-32D SBLunghezza effettiva caviRetested with the pulse reflectometer Num. Cable SB slot I2c Chan Len ( meters ) lungh (m) Len. (m) delta (m) delay (ns) delta delta Some results have very large disagreement >5 ns Also found 3 failure connectors

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