Here is the current status of the aLIGO SEI work regarding the HAM chambers. Everything in red is a change from last week's status. Everything in green is available.
· HAM 1
o HEPI unlocked and running
Low priority testing
One L4C needs to be replaced: H2
One actuator is weak: V4 It is 20% weaker than its counterparts. Likely clogged. May require replacement further down the line.
· HAM2
o ISI: previously commissioned with HEPI locked (recent performance spectra - not calibrated in higher frequencies), currently unlocked, in vacuum
o HEPI:
Unlocked 07/23
Offsets added to the actuation path to successfully reestablish alignment.
To be commissioned, Commissioning could start after SUS/SEI dedicated time.
· HAM 3
o ISI: previously commissioned with HEPI locked (recent performance spectra - Calibrated), currently unlocked, in vacuum
Sensor correction installaton started.
New blend filters installed. aLigo Blend filters on all DOF but RX and RY. eLigo high roll off blend filters on RX and RY. Performance Spectra.
o HEPI:
Unlocked 07/23
Offsets added to the actuation path to successfully reestablish alignment.
To be commissioned, Commissioning could start after SUS/SEI dedicated time.
· HAM 4
o ISI: In chamber, Previously tested during assembly validation, currently locked, no suspension installed, in-vac cables not connected.
Electronics ready, in field cables ready, in-rack cables ready. Temporary STS cables
Simulink Model was created.
Model is running, and MEDM screens are available in the Sitemap.
o HEPI: Currently locked, to be commissioned
Electronics ready, in field cables ready, in-rack cables ready. Temporary STS cables
Simulink Model was created.
Model is running, and MEDM screens are available in the Sitemap.
· HAM 5
o ISI: In Chamber, Previously tested during assembly validation, currently locked, no suspension installed, in-vac cables not connected,
Chamber temporarily closed.
Electronics ready, in field cables ready, in-rack cables ready. Temporary STS cables
Simulink Model was created.
Model is running, and MEDM screens are available in the Sitemap.
o HEPI: Currently locked, to be commissioned
Electronics ready, in field cables ready, in-rack cables ready. Temporary STS cables
Simulink Model was created.
Model is running, and MEDM screens are available in the Sitemap.
· HAM 6
o ISI: Chamber-Side testing complete
Installed in chamber.
Model is running, and MEDM screens are available in the Sitemap.
Payloaded
Unlocked
Electronics issues fixed.
Ongoing mechanical adjustments (fine balancing, fine lockers adjustments,...)
Initial in-chamber commissioning will follow.
o HEPI: Currently locked, to be commissioned
Electronics ready, in field cables ready, in-rack cables ready. Temporary STS cables
Simulink Model was created.
Model is running, and MEDM screens are available in the Sitemap.
