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SPI Working Group


  • To Decide Whether SPI is Necessary for LCGT

  • If Yes, Show Feasibility

  • If No, Propose Alternative Solutions

About the Working Group and this Wiki page

This is a special working group to study the necessity and feasibility of SPI for LCGT. This Wiki page is intended to collect information on the work group. Results from the activities of the working group will be put on this page.


The main question to be answered by this working group is whether SPI is necessary for LCGT or not. To answer this question, first we have to identify what are the benefits of SPI for LCGT and what alternative techniques are available for each benefit. We also have to prioritize the benefits and identify the critical factors (probably the vibration isolation of the heat links). Then compare the technical feasibility and costs for SPI and alternative techniques to answer the main question.



Time Frame


SPI design

Heatlink Isolation

Lock Acquisition



Task List

Benefits of SPI

Past discussions

LCGT/subgroup/ifo/SPI (last edited 2009-07-10 11:10:23 by whitehole)