Author: Rollins, J.G.
Paper Title Page
MOA3O03
Status of the Advanced LIGO project  
 
  • J.G. Rollins
    CALTECH, Pasadena, California, USA
 
  Funding: NSF
The Advanced LIGO project*, which operates a pair of ultra-high strain sensitivity gravitational wave detectors, has just started its first observation run with newly upgraded detectors. This presentation will cover the overall design of the new detectors, with a focus on the digital control system that keeps the instrument at peak sensitivity.
*http://dx.doi.org/10.1088/0264-9381/32/7/074001
 
slides icon Slides MOA3O03 [29.355 MB]  
 
MOPGF116
Guardian: A Flexible, Hierarchical, Distributed Automation Environment for Large Experimental Control  
 
  • J.G. Rollins
    CALTECH, Pasadena, California, USA
 
  Funding: NSF
The LIGO project has developed a new automation environment for its Advanced detectors. Sitting on top of EPICS and based on Python, it consists of a hierarchy of distributed, state-machine automatons, each controlling a particular sub-domain of the system. In order to accommodate the unique constraints of the LIGO commissioning process, the system is designed to be highly flexible and agile, allowing detector scientists to program the automation "on the fly" and to easily redirect subsystems as needed. This system is now in place and fully automating the complicated "lock acquisition" process of the Advanced LIGO detectors*.
*http://dx.doi.org/10.1088/0264-9381/32/7/074001