J. Garcia, J. Kissel

We have completed the first round of M0 and R0 Top2Top measurements, for X1SUSQUAD04, and they look excellent -- as good, if not better, than all other QUAD's measured in this state. "This state" is metal dummy masses, fully suspended and balanced, with only the M0 and R0 cables hooked up (i.e. no lacing cables down the reaction chain). 

See the attached .pdfs for results.

I show the best 4 suspensions in this state for comparison, 2 ITM QUADs and 2 ETM QUADs: X2 SUS QUAD 11, H2 SUS ITMY, X2 SUS QUAD 13, and X1 SUS QUAD 04; in addition to the model, which is a Main Chain model with metal dummy masses. Remember, the difference between the ITM and ETM QUADs is only in the reaction chain, in that the ITMs have the thin compensation plate (100mm thick, for 20 mm gap), and the ETMs still have the ERMs with (130 mm thick, for 5mm gap). Because the difference in thickness requires different physical parameters for the reaction chains, the dynamics are different.

This being said, one can see that X2 SUS QUAD 13, and X1 SUS QUAD 04 -- two such sus's that should be exactly identical -- show the exact same dynamics. Good!!

--------------
Data:

/ligo/svncommon/SusSVN/sus/trunk/QUAD/X1/QUAD04/BUILD03/SAGM0/
DTT Files = Data/111114_x1susquad4_bld3_M0_*_WhiteNoise_TF.xml
Exported Text Files = Data/2011-11-15_QUAD4_BLD3_M0-*_tf.txt
Gathered Results mat file = Results/2011-11-15_X1SUSQUAD04_M0.mat

/ligo/svncommon/SusSVN/sus/trunk/QUAD/X1/QUAD04/BUILD03/SAGR0/
DTT Files = Data/111115_x1susquad4_bld3_R0_*_WhiteNoise_TF.xml
Exported Text Files = Data/2011-11-15_QUAD4_BLD3_R0-*_tf.txt
Gathered Results mat file = Results/2011-11-15_X1SUSQUAD04_R0.mat


Analysis Scripts

/ligo/svncommon/SusSVN/sus/trunk/QUAD/Common/MatlabTools/
plotallquad_dtttfs.m
plotquad_dtttfs.m