LIGO Document D020436-v1
- Schematic of the pump servo for the HEPI system (Hydraulic External Pre-Isolator) first created during iLIGO/eLIGO and still in use at LLO (but not LHO) during the start of aLIGO.
This document (D020436) was created back in 2002, but was inadvertently not uploaded into the DCC until 2016.
DCC Version 3.4.0, contact
Document Database Administrators