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AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

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Entry time:

Mon Dec 3 17:51:46 2018

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<p>Performed pulser walkthrough, Run # 181128090835</p>

<ul>
	<li>Run time: 1986s</li>
	<li>Pulser ON, amplitude changed</li>
	<li>Target: None</li>
	<li>Beam: None</li>
	<li>DT ~ 11%</li>
	<li>See attached picture 1 for sample pulser walkthrough spectrum, ADC 2 channel 3 (ADC 3 in DAQ file browser)</li>
</ul>

<p>Pulser amplitudes swept through (measured amplitude checked after collecting pulser walkthrough to ensure no additional load was placed on pulser):</p>

<table border="1" cellpadding="1" cellspacing="1" style="width:500px">
	<tbody>
		<tr>
			<td>Pulser Amplitude Setting</td>
			<td>Pulser Measured Amplitude (mV)</td>
		</tr>
		<tr>
			<td>70000</td>
			<td>366</td>
		</tr>
		<tr>
			<td>60000</td>
			<td>318</td>
		</tr>
		<tr>
			<td>50000</td>
			<td>268</td>
		</tr>
		<tr>
			<td>40000</td>
			<td>206</td>
		</tr>
		<tr>
			<td>30000</td>
			<td>155</td>
		</tr>
		<tr>
			<td>20000</td>
			<td>102</td>
		</tr>
		<tr>
			<td>18000</td>
			<td>92.4</td>
		</tr>
		<tr>
			<td>16000</td>
			<td>82.8</td>
		</tr>
		<tr>
			<td>14000</td>
			<td>72.8</td>
		</tr>
		<tr>
			<td>12000</td>
			<td>62.4</td>
		</tr>
		<tr>
			<td>10000</td>
			<td>51.8</td>
		</tr>
		<tr>
			<td>8000</td>
			<td>42.0</td>
		</tr>
		<tr>
			<td>6000</td>
			<td>32.0</td>
		</tr>
		<tr>
			<td>4000</td>
			<td>22.0</td>
		</tr>
		<tr>
			<td>2000</td>
			<td>11.4</td>
		</tr>
	</tbody>
</table>

<p>After walkthough pulser amplitude setting set back to 70000, all other settings left unchanged</p>

<p>Far S2 and diode biases switched off. Preamp power off. Line valve and FCC valve closed. Turbos off. Manual and T1600 backing valves closed. Ecodry 1 and 2 off. Waited for turbos to spin down.</p>

<p>By 10:20 turbos had finished spinning, vented chamber ready to mount alpha source.</p>

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Attachment 1:

182811_PulserWalkthrough.jpg Original size: 1024x768

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