AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CARME
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Entry time:
Wed Jun 4 10:44:36 2025
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<p>11:30</p> <p>Run 50 started.</p> <p>D+ beam deuterium target. D+ beam energy is 0.35 MeV/u. (beam calc calculation is 0.3577 MeV/u)</p> <p>Target density is about 4e12 at/cm2</p> <p>All four detectors positioned fully out and stationary.</p> <p>Left potentiometer = 18.86 mm</p> <p>Right potentiometer = 19.8 mm</p> <p>Ring cycle time is 10 seconds.</p> <p>Target T1=30.1K, T2=31.8K.</p> <p>Nozzle position unchanged since end of run 48</p> <p>YR09-Etarget pressure = 2.05e-10 mbar.</p> <p>Cooler Read value = 207.1 V, 4.39 mA</p> <p> </p> <p>All leakage currents look good (except dssd4, currently stable at V=60)</p> <p>Beam position. Vertical =0.0mm , Horizontal=0.5 mm</p> <p>Data rate ~ 172kB/s</p> <p>Slow comparator threshold to 0x14 (200 keV) since we decreased beam energy.</p> <p>13:00</p> <p>All checks OK</p> <p>We were seeing some rubbish obscuring the 3He peak. JM remembered setting the EYEX cut very high (3 MeV) on the online plot, Now it is reduced to 500 keV</p> <p>See attachments of histograms before restarting code.<br /> </p> <p>16:32 all checks okay<br /> 18:19 all checks okay<br /> 20:20 all checks okay<br /> 21:45 all checks okay</p> <p>01:00 all checks okay</p> <p>04:00 all checks okay</p> <p> </p> <p>7:00</p> <p>Run stopped - cave to be opened. Beam looks on when run was stopped.</p> <p>Temps OK - attach</p> <p>Leakage current stable - attach</p> <p>Rates OK - attach</p> <p>Merger OK - attach</p> <p>Final spectra attached</p> <p>09:30</p> <p>Gas target shutter valve closed to save ring vacuum.</p> <p>All checks OK</p> <p>Stats at htis threshold with no beam attached.</p> <p>Biased DSSD4 in steps of 5V from 60V since it has been stable since yesterday,</p> <p>Was able to bias to 100V with no issues.</p>
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