4 pulsers runs have been taken last week.

From Jim :

Run #           Mode                Channel     IB            Rate     Threshold
17043029    Pulser_RAW   Pulse_5      10,000   250        N/A     
17043030    Pulser_RAW   Pulse_25    10,000   250        N/A     
17043031    Pulser_CM      Pulse_5      10,000   250        2*Sigma+5
17043032    Pulser_CM      Pulse_25    10,000   250        2*Sigma+5

I looked at run 17043031

Ladder Id vs channel [1-128] : side P

Ladder Id vs channel [1-128] : side N

Playing with the strips ADC, one can clearly see the 4 pulsers per chip having larger ADC value :

Ladder Id vs channel [1-128] with ADC >100 : side P

Ladder Id vs channel [1-128] with ADC > 100: side N

Check : ADC distribution for all channels (black) and pulser channels (red) : side P, side N

Gain per wafer : here

Test : running the BFC chain (1000 events of /star/data03/daq/2016/043/17043021/st_physics_17043021_raw_2500037.daq" )

left : charge matching side P - side N 
right : difference side P - side N [ADC]

no gain calibration ; gain calibration

Comments :

• as seen before, charge matching plot looks sharper with the gain calibration
• also reflected in the difference plot, the distribution seems smoother

Here I compare the results for run 17043031 and 17043032.
Bottom pannles are the ratios between these 2 runs :

• very small deviations are observed 
• however run 17043031 has one more entry than 17043032 so we may use values from this run