Log entry time 22:44:47 on February 4,2003

Entry number 94840

keyword=HAPPEX DAQ activity

HAPPEX DAQ activity for the evening included
- IA scan
- Sign Check, (N2 target)
- Carbon target, with and w/o OS
- DAC noise OFF test (w/ & w/o OS)
- Lumis checked in another ADC
- bcm3 (bcm2 - 3X output) moved to ADC0_1

In the following OS1 means:
OS=0, IT=13300, All counting house ADCs are in Low gain except ADC0 & 4, which are High Gain
while OS13 means
OS=12, IT=1000, All counting house ADCs are in High gain



  CH    Inj        Comments

 1703           long "pedestal" run, from 11:30-15:00.

        5227    "pedestal" run (no forced gain)

 1704           "ped" run with OS=12, IT=1000, All ADC hi-gain (300 k events)

 1705           "ped" run with OS=12, IT=1000, All ADC hi-gain (877 k events, whoops)

 1706           "ped" run with OS=14, IT=100, ADC=HI... beam came...



 1707            5uA, OS=13 (14) (whoops)

 1708   5228     4uA, IT=1000, OS=12, ADC=HiGain

   **********IA Scan********************

 1709   5229     IA=4.14, OS=1 (IT=13300, ADC=LoGain, except 0&4=HI)  HWP=OUT, RWP=6435

 1710   5230     IA=9.00, OS=1 (IT=13300, ADC=LoGain, except 0&4=HI)

 1711   5231     IA=1.00, OS=1 (IT=13300, ADC=LoGain, except 0&4=HI)

 1712   5232     IA=5.00, OS=1 (IT=13300, ADC=LoGain, except 0&4=HI)

  **************************************

  **********Sign Check******************

 1713   5233     N2 reference cell filling, started at 100 psi, 5uA

     "POS" Pita voltage turned OFF (setpoint = 0.000, readback = 0.04) (Neg = 7.752, readback 2.07)

 1714   5234     N2 cell, 149psig, 12 uA (lumi2 over range)

 1715   5235     N2 cell, 149psig, 11 uA

 1716   5236     OS13 config, N2 cell, 141psig, 11 uA

    IHWP inserted, RWP left at 6435

 1717   5237     OS1 config, N2 cell 147 psig

 1718   5238     OS13 config

 1719   5239     OS1 config

    "POS" Pita turned back on, (setpt=7.690, readback = 3.25) 

  **************************************

    Carbon target, raster off

 1720   5240     OS1

 1721    |       OS13

 1722    |       OS13, Lumi HV = Nominal + 100V

 1723    |       OS13, Lumi HV = Nominal + 200V

    Lumi HV back to nominal, Pol 3He target

    RHWP set to 6650 (nominal for IHWP=IN)

 1724            OS1, feedback ok.

    Feedback disabled (18:33) to take oversampled data

 1725            OS13 Lumi HV= nominal

 1726            OS13 Lumi HV= nominal + 100 V

 1727            OS13 Lumi HV= nominal + 200 V

 1728            OS1, Feedback on and OK. Killed badly (no end-of-run record)

 1729            OS1, Feedback on and OK.

  **********DAC Noise Study*************

 1730            DAC Noise Turned off, OS1  (Feedback on and OK)

 1731            DAC Noise Turned off, OS13 (feedback disabled)

 1732            DAC Noise Turned off, OS1  (Feedback on and OK)

  **************************************

  **********Moved Lumi to new ADC*******

    Moved Lumi channels to corresponding channels (0, 1) on ADC 1

    Moved timing ribbon cable to this ADC also.  Modified template for this.

 1733            DAC Noise OFF, ended with a beam trip (good for pedestals?)

 1734            DAC Noise OFF, same thing. 

 1735            DAC Noise OFF, new template to correct bcm3 position (ADC4_0, not ADC4_1)

 1736            DAC noise OFF, moved bcm3 to ADC0_1

    Moved Lumi channels (lumi1 and lumi2) back to ADC2_0 and ADC2_1 respectively.

    Moved timing ribbon cable back to this ADC also.  Modified template for this.

 1737            DAC Noise back on.  Whoops, control.db not changed.

 1738            DAC Noise ON.  Control.db is correct.  Feedback is on and OK.

  **************************************

User name paschke

Log entry time 22:44:47 on February 4,2003

Entry number 94840