aLIGO HAM-ISI, "Units" Acceptance

Document #:

LIGO-E1200689-x0

Document type:

E - Engineering documents

Abstract:

Root DCC entry for the acceptance of aLIGO HAM-ISI units (following the procedure given in M1100282)

It includes all the documentation specific to each individual HAM-ISI instance (Tests Reports, special features...)

Follow the links provided under 'related documents' to get to the acceptance documents

Files in Document:

None

Topics:

• Seismic Isolation

Authors:

• Fabrice Matichard
• Ken Mason
• Brian Lantz

Notes and Changes:

The following notes are general notes applying to all of the HAM-ISI "Units" Fabrication Acceptance Reports. These will be kept updated by Calum Torrie.

1) QUESTION ON PHASE II AND PHASE III. OPEN ACTION. NEED TO FULLY UNDERSTAND IMPLICATION OF THE FOLLOWING wrt FAB & INS REVIEWS and ASSOCIATED PUNCH-LISTS (if any). CIT.

PHASE III DEFINED BY CALUM
Can I confirm hat when you say phase 3 testing you are referring to the following or something like the following
"Phase 3 testing involves stand-alone, in-situ testing to see that the assembly behaves properly after the installation procedure and with the field-installed cabling, etc ..."

PHASE II AND PHASE III DEFINED BY FABRICE (SEISMIC)
No, that's part of Phase 2. See, for instance, the following report. The section starting page 26 shows the tests we did after install in the chamber, but before closing:
https://dcc.ligo.org/DocDB/0086/E1200105/004/E1200105%20aLIGO%20HAM-ISI%20-LLO%20HAM%202%20-%20V4.pdf
Phase 3 is related to the commissioning after chamber closing: the control loops design, isolation performance. Phase 3 is complete, but not yet well documented.

Related Documents:

Referenced by:

• LIGO-E1200684: aLIGO, SEI