AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
CIRCE
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Thu Nov 27 10:06:18 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 26/11/2018:</p> <p>The accelerator and chamber setup were still operating after the overnight run.</p> <p>Far S2 bias = -130V, leak I = 1.59uA. Diode bias = -70.1V, leak I = 0.00uA.</p> <p>8:35 pressures (mBar):</p> <ul> <li>TPU1 = 8.6e-7</li> <li>TPU2 = 3.1e-7</li> <li>TPD1 = 6.1e-7</li> <li>TPD2 = 6.3e-7</li> <li>CHUP = Sensor Off</li> <li>CHDW = No Sensor</li> </ul> <p>Checking for beam-induced background, moved target ladder to position # 2 - blank 10mm aperture</p> <p>Run # 181126084821</p> <ul> <li>Run time: 1204s</li> <li>Pulser ON, as before</li> <li>Target: Blank 10mm</li> <li>Beam: 6.0MeV 7Be 2+</li> </ul> <p>Using blank 10mm frame FCC = 6pA</p> <p>Stopped run - CSSM magnet was switched on halfway through. This this the magnet located immediately downstream of the chamber and we were worried about it affecting the noise. Switched off CSSM magnet.</p> <p>Run # 181126090936</p> <ul> <li>Run time: 1239s</li> <li>Pulser ON, as before</li> <li>Target: Blank 10mm</li> <li>Beam: 6.0MeV 7Be 2+</li> <li>DT ~ 8%</li> </ul> <p>Moved ladder to position #5 - natC III</p> <p>Run # 181126093314</p> <ul> <li>Run time: 1416s</li> <li>Pulser ON, as before</li> <li>Target: natC III</li> <li>Beam: 6.0MeV 7Be 2+</li> <li>DT ~ 8%</li> </ul> <p>Moved ladder to position #2 - blank 10mm aperture. Closed far S2 iris and switched beam to 6.0MeV 7Li 2+.</p> <p>Using 10mm aperture FCC = 360pA. Using 3mm aperture FCC = 300pA.</p> <p>Moved ladder to position #4 - CH2 XVIII. Opened Far S2 iris.</p> <p>Run # 181126105357</p> <ul> <li>Run time: 1383s</li> <li>Pulser ON, 25Hz</li> <li>Target: CH2 XVIII</li> <li>Beam: 6.0MeV 7Li 2+</li> <li>DT ~ 12%</li> <li>See attached picture 1 for sample Far S2 front strip. See attached picture 2 for diode spectrum.</li> </ul> <p>Ready to replace Far S2 12um mylar with 0.9um mylar protective foil</p></td> </tr> </tbody> </table> </p><p> </p>
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