<p>07:00</p>
<p>Observed reduction in YR09 presure over last few hours in ML online plot. Beam intensity looks OK but target density was fluctuating quite a lot. Current value was 1.5e11.</p>
<p>Changed the nozzle position slightly which increased target density to 5.5e11. Pressure in YR09 looks OK.</p>
<p>I accidently scrolled slightly with the target code (only by 100 but am not sure). Target looks stable but I will not touch remotely again for fear of losing total target position.</p>
<p>Rates in ADC data items statistics and in the monitoring code look consistent with beam on target. </p>
<p>08:56</p>
<p>Target density reduced again to 1.5e11. Changed the nozzle position slightly in X and recovered 5.5e11 at/cm2</p>
<p>Beam intensity looks OK</p>
<p>FEE temps OK</p>
<p>System checks OK</p>
<p>Merger and tape server OK</p>
<p>Statistics ADC data items and spectrum browser rates OK</p>
<p>Merger stats attachement 5</p>
<p>leakage current plot attachment 6</p>
<p>Online monitoring code rates OK</p>
<p>09:33</p>
<p>Run stopped to change beam energy</p>
<p> </p> |