<p><strong>14:45</strong></p>
<p>New run 55 with:</p>
<p>Right arm at 64.60 mm</p>
<p>Left arm IN at 36.54 mm</p>
<p>MBS working - hopefully</p>
<p>Target 7E11</p>
<p>Injection ca. 5E7</p>
<p>horizontal beam position 8.75 mm</p>
<p>vertical beam position -5mm</p>
<p>Changed electron cooler set point to 244.2 V</p>
<p>Read value 243.66 V</p>
<p>Collector current 4.31A</p>
<p>Rates OK. Temps OK.</p>
<p> </p>
<p><strong>15:00</strong></p>
<p>Detector 0 was noisy. Shook arm. Fixed it.</p>
<p> </p>
<p><strong>16:15</strong></p>
<p>Detector 0 was noisy. Shook arm. Fixed it.</p>
<p>There is no beam in CRYRING since 16:05.</p>
<p> </p>
<p><strong>16:25</strong></p>
<p>The beam is back but it is still a bit unstable and the operators are still trying optimize it.</p>
<p> </p>
<p><strong>17:20</strong></p>
<p>We just did standard detector/electronics checks. Everthing looks OK.</p>
<p> </p>
<p><strong>17:50</strong></p>
<p>Take screenshots.</p>
<p> </p>
<p><strong>20:50</strong></p>
<p>Detector 0 was noisy. Shook arm. Fixed it.</p>
<p>But now detector 2 seems to have lost the Rutherford peak.</p>
<p>Screenshots taken and attached.</p>
<p> </p>
<p><strong>21:05</strong></p>
<p>We did "Check ASIC Control" following Carlo's advise. This fixed the detector 2, but the detector 0 got noisy again. Another movement of the detector fixed the noise again.</p>
<p> </p>
<p><strong>22:15</strong></p>
<p>Detector 0 was noisy. Shook arm. Fixed it.</p>
<p> </p>
<p><strong>23:05</strong></p>
<p>This run has finished. The cooler voltage will be increased by 0.1V for the next run.</p>
<p>The latest spectra and detector/DAQ status are in the attachment.</p> |