Reports until 07:58, Monday 16 March 2015
H1 AOS (PSL)
peter.king@LIGO.ORG - posted 07:58, Monday 16 March 2015 (17274)
LLO Pre-modecleaner
    After a bit of a struggle getting the pre-modecleaner out of its tank, we managed to
examine the mirrors of the pre-modecleaner.  Visually most looked okay, except one which
showed some evidence of a film.  It was not easy to see, nor photograph but certainly the
impression is that something is there.

    This is most likely the reason of the pre-modecleaner's demise, which may have been
the result of it having been stored with its tank lid on.







Ed, Peter
Images attached to this report