<p><strong>16:15</strong></p>
<p>In the previous run while working on the target it was discovered that the valve was closed! Probaly this happened around 10 am, we are not sure.</p>
<p>The gas target inlet valve is open again, working on the target.</p>
<p> </p>
<p>Beam energy = 3 MeV</p>
<p>Horizontal beam position = 7.0 mm, vertical beam position = 0.0 mm.</p>
<p>Beam intensity at inj ~ 2.5e7</p>
<p>Detectors are positioned IN pneumatic only. Left arm = 62.71, right arm = 64.60 mm</p>
<p>Histograms and stats zero'd, monitoring code restarted.</p>
<p>Beam in the ring ~ 7 minutes.</p>
<p>Pressure in YR09 E target ~ 4.5e-11 mbar.</p>
<p> </p>
<p><strong>18:03</strong> ( Attchments 1 -4)</p>
<p><strong>Still no target!</strong></p>
<p>Merger OK, Tape server OK</p>
<p>ADC data item statistics looks as before. OK</p>
<p>FEE temperatures look OK</p>
<p>System checks OK</p>
<p> </p>
<p><strong>20:23</strong></p>
<p>We have the target back. S1( grafana) 4.8e-8. The target thickness read by the system 5E11 atoms/cm2 but apparently the formula is wrong and the value should be almost e12 atoms/cm2.</p>
<p>. We have now proper beam and target and we</p>
<p> </p> |