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Status of 44 post LT ARCS tested TOB modules, July 15, 2004

Status of 44 post LT ARCS tested TOB modules, July 15, 2004. Anatoly Ronzhin, Fermilab. Modules 7613-7656, post LT (2 nd ARCS). 44 modules (7613-7656) – tested. 7613-7632 - 4 chips. 7633-7656 - 6 chips.

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Status of 44 post LT ARCS tested TOB modules, July 15, 2004

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  1. Status of 44 post LT ARCS tested TOB modules, July 15, 2004 • Anatoly Ronzhin, • Fermilab

  2. Modules 7613-7656, post LT (2nd ARCS). • 44 modules (7613-7656) – tested. • 7613-7632 - 4 chips. • 7633-7656 - 6 chips. • (Note: all these modules passed 1st ARCS test with grade A. • Bad channels plot should be updated with ARCS post LT).

  3. 7613-7632 – need update with post LT

  4. 7633-7656 – need update with post LT

  5. Glitches, post LT (2nd ARCS) • Sorry, we have currently more questions then answers. • 7613 – 4 more new bad channels (SHT) + • (2 OP, old, 1st ARCS). • 7618 – PH?, (new) + new SHT + ? – really BAD. • 7634 – APV 6, (new). • 7635 – still HV problem even w/o crawbar, • (PASS@1st ARCS w/o crawbar). • 7641 – PH?, (new). • 7649 – APV 1, (new) • 7654 – PH?, (new). • PH – “formally”- from bad channels list, probably not “real”.

  6. Glitches, post LT (2nd ARCS) • 7613 – 4 more new bad channels (SHT), • - visually found nothing, (PASS). • 7618 – PH?, (new), still persists after pulling + new SHTs + ? - BAD. • 7634 – APV 6, (new). • 7635 – PASS, but still HV problem. • 7641 – PH?, (new), persists after pulling. • 7649 – APV 1, bended bonding fixed, PASS, A. • 7654 – PH?, (new), persists after pulling.

  7. Summary • 7618, 7641, 7654 – “PH”? – still persist after wires pulling out. • 7634 – APV 6, (new). • 7635 – PASS, but still HV problem – will be investigated. • So, 39 of 44 PASSED post LT (2nd ARCS).

  8. Acknowledgement • Thanks to Cuong and Hung for great help.

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