10.52 DAQ continues
      AIDA file RIBF148/R8_39

      BNC PB-4
      Amplitude 90,000
      x5 attenuator IN
      t_r 100ns tau_d 50us
      - polarity
      frequency 25Hz range 2.6Hz
      delay MIN, tail pulse, INT ref

      ASIC settings 2017Mar27-16.12.39
      *except* 
      slow comparator 0x64
      LEC/MEC fast comparator 0x14

10.54 Detector biases & leakage currents OK - see attachments 1 & 2
      FEE64 Temperatures OK - see attachment 3
      good events statistics stable & OK - see attachment 4 
      No warnings/errors reported by merger since start of RIBF148/R3  - see attachment 5
      *all* system wide checks OK (zero fails)

11.02 analysis file RIBF148/R8_39 - zero deadtime, 222x MBS and zero ts timewarps - see attachment 6
      correlation scaler trigger ~ 950/3 ~ 320Hz

15.12 online analysis 
      ADC & disc data synchronised - note the effect of the higher slow comparator threshold on the after-pulse
- see attachment 7
      per DSSSD m_p versus m_n (LEC) - see attachments 8
      per DSSSD x versus y (LEC) - see attachment 9
      per DSSSD E_p versus E_n (LEC) - 512x512 spectra - nominal 20keV per channel - see attachment 10
      Spectra show light particles detected from last night's 238U beam test - no HEC data due to 10cm Pb wall
      It should be straightforward to separate the alpha background from this data using the change in LEC rates
      and the light particle data will also provide a good check of the calibration.

11.17 Stop DAQ
      AIDA file RIBF148/R8_40

      online histograms & SortSas spectra zero'd

      saw tooth noise FEE64s p+n junction strips not observed
      clover detectors re-installed but not cabled or biased
      3He detectors are on
      Si dE and variable degrader was removed yesterday

11.19 Start DAQ
      AIDA file RIBF148/R9

      Check ASIC control x2

13.15 Detector biases & leakage currents OK - see attachments 11 & 12

16.45 Clover detectors cabled and bias applied

17.33 DAQ continues
      AIDA file RIBF148/R9_6

      nnaida13 & nnaida11 1.8.W spectra - nnaida13 shows evidence of high frequency noise modulated
      with a period of ~400us cf. https://elog.ph.ed.ac.uk/AIDA/661

18.01 DAQ stop
      AIDA file RIBF148/R9_6

18.09 *** NEW FEE64 FIRMWARE ***
      New RunControl/sys.tcl and Check/check.js .tcl .tml

18.48 DAQ start
      AIDA file RIBF148/R10

      BNC PB-4
      Amplitude 90,000
      x5 attenuator IN
      t_r 100ns tau_d 50us
      - polarity
      frequency 25Hz range 2.6Hz
      delay MIN, tail pulse, INT ref

      ASIC settings 2017Mar27-16.12.39
      *except* 
      slow comparator 0x64
      LEC/MEC fast comparator 0x14

19.03 online analysis
      ADC & disc data synchronised - 20.48us/channel - see attachment 15
      
      For all combinations of x-y strips (LEC events) calculate

         IF ( ihit( i ) .AND. ihit( j ) ) THEN
          tdiff1 = ihit_ts(i)-e_time
          tdiff2 = ihit_ts(j)-e_time
          CALL inc1d( 500, tdiff1 + 2000 )
          CALL inc1d( 506, tdiff2 + 2000 )
          CALL inc2d( 2600, tdiff1, tdiff2 )
         ENDIF

      where
      e_time = 100MHz timestamp of first ADC word of event
      ihit_ts(i) = 100MHz timestamp of ADC word i of event

      see attachments 16-17

19.21 Current MONLOCK status - see attachment 18