J. Kissel
WP #5118

After building the MEDM infrastructure for the calibration lines and optical gain compensation (a.k.a. "gamma"; see ) I realized a large fraction of calibration line path from its generation deep inside the GAMMA_LINE1_DEMOD block to its injection into the DARM loop has no readbacks or test points. Similarly, the calculation of each optical gain compensation coefficient has a ton of steps with out EPICs records to show the progress along the way.

As such, I've installed several new EPICs records in the h1calcs.mdl (or, more accurately in the CAL_CS_MASTER.mdl and CAL_GAMMA_CALC_MASTER.mdl library parts) and installed an EPICs record / Test Point pair in the h1omc.mdl (again, more accurately in the omclsc.mdl library part), right before its injected into the DARM loop. See attached screen shots. 

I've chosen to store the new test point at the full 16 [kHz] in the frames, because I expect we'll want to make comparisons of the CALCS to OMC model delay over long stretches of time in the future to ensure the phase lag between generation and injection remains stable against, say, computer reboots. The new test point channel in the OMC will be
${IFO}:OMC-LSC_CAL_LINE_SUM_DQ
where the already existing channel in the CALCS model is
${IFO}:CAL-CS_LINE_SUM_DQ
remember that this is *sum* of all calbiration lines. The test point for each individual line,
${IFO}:CAL-CS_GAMMA_LINE${lineNum}_DEMOD_LO
 is *not* stored in the frames. We expect that the lines will be sufficiently far apart that a simple band-pass on the noise-free digital signal should be adequate to isolate each line if necessary.

These new models have been compiled and committed to the userapps repo, and I'll install them tomorrow morning and restart the DAQ.