Beam lost due to septum failure c. 18.15 Friday 14 June

Cooling of recirculating water failed c. 19.00 - water temperature increased from the normal 17-18deg C to 25-26 deg C
FEE64 temperatures increased and FEE64s powered off and on-call engineer requested.

Cooling of recirculating water restored and AIDA restarted

NH started background run 23.37 - data file S181/R9

01.21 DSSSD bias & leakage current OK - attachment 1

      FEE64 temperatures OK - attachment 2

      ADC data item stats OK - attachment 3
       8x < 20k, max 238k aida08

      per FEE64 Rate spectra - attachment 4

      2x Check ASIC load

      Merger, TapeServer etc - attachments 5-6

      analysis data file R9_27 - attachment 7
       max deadtime 1.9%, all other FEE64s < 1%
       ADC data rate 951k, HEC data rate 1.6kHz

04.28 DSSSD bias & leakage current OK - attachment 8

      FEE64 temperatures OK - attachment 9

      ADC data item stats OK - attachment 10
       8x < 20k, max 261k aida08

      per FEE64 Rate spectra - attachment 11


08.30 DSSSD bias & leakage current OK - attachments 12-13

      FEE64 temperatures OK - attachment 14

      ADC data item stats OK - attachment 15
       all rates increased - gamma source in use?

      per FEE64 Rate spectra - attachments 16-17
       note aida08 asic #3 hot HEC channel

      per FEE64 1.8.L spectra - attachments 18-20
       aida09 pulser peak width 59 ch FWHM
       decay alphas aida05, aida12, aida02, aida04

      per FEE64 1.8.W spectra - 20us FSR - attachments 21-23

      Merger, TapeServer etc - attachments 25-25

      analysis data file R9_152 - attachment 26
       max deadtime 2.4%, all other FEE64s < 1%
       ADC data rate 1.215M, HEC data rate 2.1kHz


12.22 DSSSD bias & leakage current OK - attachment 27

      FEE64 temperatures OK - attachment 28

      ADC data item stats OK - attachment 29

      per FEE64 Rate spectra - attachment 30



15.27 DSSSD bias & leakage current OK - attachment 31

      FEE64 temperatures OK - attachment 32

      ADC data item stats OK - attachment 33
       all rates increased - 370kBq 152Eu in use

      per FEE64 Rate spectra - attachments 34

      per FEE64 1.8.L spectra - attachments 35-36
       aida09 pulser peak width 59 ch FWHM
       decay alphas aida05, aida12, aida02, aida04

      analysis data file R9_275 - attachment 37
       max deadtime 4.4%, all other FEE64s < 2%
       ADC data rate 1.520M, HEC data rate 2.3kHz

18.52 DSSSD bias & leakage current OK - attachment 38

      FEE64 temperatures OK - attachment 39

      ADC data item stats OK - attachment 40

      per FEE64 Rate spectra - attachment 41


22.50 DSSSD bias & leakage current OK - attachment 42

      FEE64 temperatures OK - attachment 43

      ADC data item stats OK - attachment 44

      per FEE64 Rate spectra - attachment 45