AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CIRCE
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Entry time:
Tue Mar 25 20:24:52 2025
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<p> <table width="98%" align="center" cellspacing="1" style="border:1px solid #486090;"> <tbody> <tr> <td cellpadding="3px" style="background-color:#486090; font-weidht:bold; color:white;">Quote:</td></tr> <tr> <td cellpadding="10px" style="background-color:#FFFFB0;"><p>On 28/11/2018:</p> <p>Mounted 12um mylar in front of far S2 - see attached pictures 1 and 2</p> <p>In air: Far S2 biased to -130.0V, leak I = 1.61uA. Diode biased to -70.1V, leak I = 0.01uA -> 0.00uA. Rate meter ~ 4500Hz.</p> <p>Detectors switched off</p> <p>17:50 started Ecodry 1 and 2, started opening manual valve.</p> <p>18:00 Manual valve fully opened, T1600 backing valve opened, Turbos switched on.</p> <p>Once pressures ~ 1e-5mBar, far S2 bias = -130.0V, leak I = 1.59uA. Diode bias = -70.1V, leak I = 0.00uA.</p> <p>18:08 Pressures (mBar):</p> <ul> <li>TPU1 = 3.0e-5</li> <li>TPU2 = 6.0e-5</li> <li>TPD1 = 5.2e-6</li> <li>TPD2 = 8.7e-6</li> <li>CHUP = Sensor Off</li> <li>CHDW = No Sensor</li> </ul> <p>Run # 181128181421</p> <ul> <li>Run time: 1799s</li> <li>Pulser ON, as before</li> <li>Alpha source</li> <li>S2 mylar: 12um</li> <li>DT ~ 12%</li> </ul> <p>Started overnight run:</p> <p>Run # 181128184505</p> <ul> <li>Run time: 51706s</li> <li>Pulser ON, as before</li> <li>Alpha source</li> <li>S2 mylar: 12um</li> <li>DT ~ 8%</li> <li>See attached picture 3 for sample far S2 front strip spectrum</li> </ul> <p>18:50 End of day check:</p> <p>Far S2 bias = -130.0V, leak I = 1.60uA.</p> <p>Diode bias = -70.1V, leak I = 0.00uA.</p> <p>Pressures (mBar):</p> <ul> <li>TPU1 = 3.8e-6</li> <li>TPU2 = 1.2e-6</li> <li>TPD1 = 1.4e-6</li> <li>TPD2 = 1.6e-6</li> <li>CHUP = Sensor Off</li> <li>CHDW = No Sensor</li> </ul> <p>On 29/11/2018: Alpha run stopped</p> <p>9:05: Far S2 bias = -130.0V, leak I = 1.70uA. Diode bias = -70.1V, leak I = 0.00uA.</p> <p>Detector biases and preamps off.</p> <p>Pressures (mBar):</p> <ul> <li>TPU1 = 7.6e-7</li> <li>TPU2 = 3.5e-7</li> <li>TPD1 = 7.7e-7</li> <li>TPD2 = 7.3e-7</li> <li>CHUP = Sensor Off</li> <li>CHDW = No Sensor</li> </ul> <p>Closed manual and T1600 backing valves. Stopped turbos. Stopped Ecodry 1 and 2.</p> <p>Switched off Nim bin, RAL crate, and CAMAC crate</p> <p>9:45 Opened venting valve</p></td> </tr> </tbody> </table> </p><p> </p>
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