LIGO-G030428-00-Z Update on the Analysis of S2 Burst Hardware Injections L. Cadonati (MIT), A. Weinstein (CIT) for the Burst group Hannover LSC meeting,

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Presentation transcript:

LIGO-G Z Update on the Analysis of S2 Burst Hardware Injections L. Cadonati (MIT), A. Weinstein (CIT) for the Burst group Hannover LSC meeting, August 20, 2003

LIGO-G Z Hannover LSC meeting, August 20, S2 Burst Hardware Injections For details on the injections and the analysis: AJW’s presentation at the march LSC meeting LIGO-G Z Frequency f 0 (Hz) Duration (msec) Time from segment start t 0 (sec) Short, narrow-bandwidth signals (sine-Gaussians). l Signal amplitudes should span the range from "barely detectable" to "large, but not so large as to break lock". l Each sine-Gaussian has Q ~ 9; total duration ~ Q/f 0

LIGO-G Z Hannover LSC meeting, August 20, Use of Harwdare Injections in the Burst Analysis Test of Event Trigger Generator sensitivity, time, frequency, amplitude resolution Validation of software injection code Test of correlation/coincidence techniques Veto safety studies The work presented here is preliminary: better resolution, burst parameter estimation will soon be available from the new burstDSO (J. Sylvestre) New calibration files recently became available – will be used in comparison with software simulation engine

LIGO-G Z Hannover LSC meeting, August 20, POWER L1 injections (pre and intra-run) TFCLUSTERS Detected at wrong frequency (noise?) TFCLUSTERS (settings as in the online run) failed to detect some loud events. This is being addressed in the new release of TFCLUSTERS and the burstDSO. for sine gaussians

LIGO-G Z Hannover LSC meeting, August 20, L1 stationarity Intra-run injections reconstructed with TFCLUSTERS (still old setup - some are missed) Sine gaussians, Q=9 and: 235, 361, 554, 850 Hz 2x m/sqrt(Hz) 100, 150, 1304 and 2000 Hz 8x m/sqrt(Hz) log 10 (power ) Failed the frequency cut Uncalibrated, detected power vs time log 10 (power ) Up to 1 order of magnitude fluctuations in the detected power

LIGO-G Z Hannover LSC meeting, August 20, L1 Dots: hardware Crosses: software Hardware injections: »Q=9 sine gaussians Software injections: »Q=9 sine gaussians, at 23 times uniformly distributed in the S2 playground »Calibration taken care of in LDAS (respfilt function in DataCond) Agreement: » fits of response versus h peak »20-50% with power law 2 constrained USED ONLINE CALIBRATION » will repeat with new calibration (V02) and with implementation of the parameter estimator (h rss vs h rss ) log 10 (power) detected vs h peak Hardware vs software injections log 10 (power )

LIGO-G Z Hannover LSC meeting, August 20, With EXCESS POWER L1 log 10 (SNR) detected vs h peak

LIGO-G Z Hannover LSC meeting, August 20, POWERTFCLUSTERS H1 injections (pre and intra-run)

LIGO-G Z Hannover LSC meeting, August 20, H1 stationarity Intra-run injections reconstructed with TFCLUSTERS (still old setup - some are missed) Sine gaussians, Q=9 and: 235, 361, 554, 850 Hz 2.6x m/sqrt(Hz) 100, 150, 1304 and 2000 Hz 1x m/sqrt(Hz) log 10 (power ) Failed the frequency cut Uncalibrated, detected power vs time log 10 (power ) Largest fluctuation at low frequency ( Hz)

LIGO-G Z Hannover LSC meeting, August 20, H1 TFCLUSTERS POWER

LIGO-G Z Hannover LSC meeting, August 20, H2 - TFCLUSTERS

LIGO-G Z Hannover LSC meeting, August 20, H2 stationarity Intra-run injections reconstructed with TFCLUSTERS (still old setup - some are missed) Sine gaussians, Q=9 and: 235, 361, 554, 850 Hz 4x m/sqrt(Hz) 100, 150, 1304 and 2000 Hz 8x m/sqrt(Hz) 100 Hz 4x m/sqrt(Hz) log 10 (power ) Failed the frequency cut Uncalibrated, detected power vs time log 10 (power ) Large fluctuation at low frequency ( Hz)

LIGO-G Z Hannover LSC meeting, August 20, H2 TFCLUSTERS POWER

LIGO-G Z Hannover LSC meeting, August 20, Veto safety studies (Ito, Schofield) H1 The position of this cut Is not decided yet! do not allow veto Study veto safety with hardware injections

LIGO-G Z Hannover LSC meeting, August 20, WaveMon veto safety studies (S. Klimenko) Time lag [s] L1 HW injections Used hardware injections to look for cross coupling between AS_Q and veto channels Select qualified triggers by setting a threshold on strength of veto clusters. »Lost <4% waveMon AS_Q triggers with this cut In Progress:  Re-run WaveMon on-line on larger number of channels and wider frequency band.  Study of veto efficiency ASQ VETO