09.18 DAQ continues OK - current file Oct18/R10_7
      alpha background run

09.20 all system wide checks OK *except* nnaida7 fails ADC calibration

      detector biases & leakage currents OK - see attachments 1 & 2

      FEE64 temperatures OK - see attachment 3
      good event statistics OK - see attachment 4
      nnaida2 rate due to one hot channel

      Merger OK - see attachment 5
      TapeServer OK - see attachment 6
      no errors or warnings shown by server terminal sessions 

      1.8.L spectra - see attachments 7 & 8

       N.B. evidence of minimally ionising particles (presumably protons) from overnight(?) BigRIPs tuning
            to F11 E detector upstream of BRIKEN & AIDA and ongoing beam to F11 E detector
            
            ~10-15cm Pb bricks were placed within BRIKEN (CH2)n stack to stop heavy particles

09.30 JLT reports ~3kHz neutrons in BRIKEN, ~12kHz in F11

      1.8.W spectra 20us FSR - see attachments 9 & 13
      1.8.W spectra 200us FSR - see attachments 10 & 14
      1.8.W spectra 2ms FSR - see attachments 11 & 15
      1.8.W spectra 20ms FSR - see attachments 12 & 16

13.17 Run stopped on file R10_8 (13.16)

13.21 Lowered slow comparator threshold from 100 to 10
      good event statistics ok (attachment 17)

13.36 Took waveforms, all ok (attachment 18)

13.55 Raised slow comparator threshold back to 100 from 10
      Started new alpha run file R12
      TapeServer and Merger ok
      System wide checks ok, except FEE7 fails ADC calibration
      FEE64 temperatures ok (attachment 19)
      Leakage currents ok (attachment 20)