H1 SUS HLTS SR3 Acceptance Document

Document #:: LIGO-E1400161-v1
Document type:: E - Engineering documents

Other Versions:

Abstract:

Calum Torrie signed April 16th 2014. No Punch-list items listed below. Note Phase 2b testing only. Beyond phase 2b refer to chamber acceptance.

Punchlist items and their resolution will be tracked in T1400181. They will not be updated on this Acceptance Document filecard.

Files in Document:

H1SR3.JPG (2.9 MB)

Topics:

Authors:

Keywords:: SUS SR3 aLIGO HLTS Acceptance

Notes and Changes:

I. Committee (* indicates review chair)
Rich Abbott, Alastair Heptonstall, Calum Torrie*, Jeff Lewis, Fabrice Matichard, Celine Ramet.

II. Documents for Review (against list from M1100282)
Top Assembly Name:
D0901132 AdvLIGO SUS HAM5-H1, XYZ Local CS for HLTS (SR3)

ICS Assembly #:
- ICS Assembly Load: https://ics-redux.ligo-la.caltech.edu/JIRA/browse/ASSY-D0901132-NA

Acceptance document:
This filecard serves as the acceptance document for H1-SR3.
For common material for all HLTS suspensions, see
https://dcc.ligo.org/LIGO-E1201041

S-numbers
S1301874
S1301875
S1301893

Test results:
- Calibrated, M1toM1 Transfer Functions (DAMPING OFF/On):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=11092
Note: Phase 2b (outside chamber, with glass)

- Calibrated, M2toM2 Transfer Functions (DAMPING OFF/ON):
DOES NOT EXIST YET (Will be done after install in Phase 3b)

- Calibrated, M3toM3 Transfer Functions (DAMPING OFF/On):
DOES NOT EXIST YET (Will be done after install in Phase 3b)

- Calibrated OSEM Sensor ASDs, All Stages (DAMPING OFF/ON):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=11092
Note: initial spectra showed LF noise, thought to be due to nearby work. Second round of spectra were free of LF noise but M3 OSEMs were not connected.

- B&K Hammer Cage Resonance Transfer Functions:
DOES NOT EXIST YET (Will be done after install)

- Coil Driver Noise (results for MC2 since coildrivers are similar): https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=4751
GENERIC. INCLUDED FOR REFERENCE.

- Coil Driver Response in all states (results for MC2 since coildrivers are similar): https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=4495
GENERIC. INCLUDED FOR REFERENCE.

Channel/Signal List and Calibrations
For latest measurements of OSEM Sensor's Open Light Current, See https://dcc.ligo.org/LIGO-E1200343
Otherwise calibrations are assumed to be as shown in HLTS Control Design Description,
https://dcc.ligo.org/LIGO-T1000061 with a roughly 20% uncertainty

Violin Mode Frequencies and Q
Note added 5th Sept 2014 for clarification (NAR/CIT)
Predicted violin mode frequencies and Qs for all types of suspensions are given in T1300876. These can be compared to measured values.
Measuring Qs is not a requirement for SUS acceptance.
For Installation acceptance it has been agreed that we should measure Qs once for each major suspension type.
For HLTS we measured Qs on L1 PR3. see
https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=11206
https://dcc.ligo.org/LIGO-T1300926
Measured Qs are all higher than the model predictions.

Referenced by:

LIGO Document E1400161-v1

H1 SUS HLTS SR3 Acceptance Document