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AdV-COM (AdV commissioning (1st part) )
cirone, fiori - 11:34 Thursday 21 September 2017 (39528) Print this report
Magnetic injections at MCB
Yesterday afternoon we prepared the setup for magnetic injections inside mode cleaner building, that we performed this morning between 08:30 and 10:30. We injected magnetic noise lines between 14 Hz and 140 Hz by sending 0.5 V (1V pkpk) signals lasting 300 sec each to the amplifier connected with the coil (axes orientation W-E) with Onosokky generator. The magnetic activity is monitored with the uniaxial magnetometer already present in the building (N-S: channel to be corrected because currently is set to W-E) and one tri-axial magnetometer (see photos for the locations).
Apparently the injected lines are not visible in Hrec and so We will probably get only an upper limit for the magnetic projection.

Log file:
quiet 1190013616 1190013686

Freq gpsstart gpsend
14 1190013758 1190014282
26.6 1190014324 1190014630
39.2 1190014672 1190014980
51.8 1190015003 1190015310
64.4 1190015340 1190015650
77 1190015670 1190015980
89.6 1190016009 1190016320
102.2 1190016360 1190016670
114.8 1190016720 1190017030
127.4 1190017080 1190017400
140 1190017450 1190017760


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