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Changed extra "MULTSYNC" diagnostic signal in QWEAK crate


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    User name pking

    Log entry time 15:50:44 on February 06, 2010

    Entry number 309174

    keyword=Changed extra "MULTSYNC" diagnostic signal in QWEAK crate

    I have changed the extra "MULTSYNC" diagnostic signal in the INJ QWEAK crate which is read out by the VQWK ADC #1, channel 6.

    The signal read by this ADC channel is now a copy of the integration gate, and will be used for rechecking the VQWK integration ranges for different helicity board settings.

    The "MULTSYNC" diagnostic signal had been coming from the output of channel 8 of the center level translator of the INJ DAQ NIM crate.

    The integration gate signal is now coming from the fourth logic channel of the left-most logic fan-out in the NIM crate; this is the same location which feeds the VQWK gate start signals.

    Before switching these channels for use by the photodiodes, we will need to take some data at the different T_stable and oversample combinations we would want. And we'll need to adjust the VQWK integration windows during these runs.

    A copy of this log entry has been emailed to: pking, rom, buddhini, mercado, suleiman, paschke