Difference between revisions of "September 21, 2011"

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(Created page with '==Here is what happened today:== * current 140 mA * pulse width 2 us * rep rate 180 Hz * E = 25 MeV {| border="1" cellspacing="0" style="text-align: center; width: 1000px " ! …')
 
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! scope="col" width="44%" | Comments
 
! scope="col" width="44%" | Comments
 
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|<span style="color:red">'''2502'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||In||DU cylinder  
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|<span style="color:red">'''2515'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||In||DU cylinder  
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
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120664 pulses<br>
+
144632 pulses<br>
−
R(bottom) = 0.0012 n/pulse  <span style="color:red"> -> × 180 Hz × 60 sec/min = '''12.9 n/min'''</span><br>
+
R(bottom) = 0 n/pulse  <span style="color:red"> -> × 180 Hz × 60 sec/min = '''0 n/min'''</span><br>
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R(upstream) = 0.0272 e+/pulse
+
R(upstream) = 0 e+/pulse
 
|-
 
|-
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|<span style="color:red">'''2503'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||Out||DU cylinder  
+
|<span style="color:red">'''2516'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||Out||DU cylinder  
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
−
121258 pulses<br>
+
0 pulses<br>
 
R(bottom) = 0 n/pulse<br>
 
R(bottom) = 0 n/pulse<br>
−
R(upstream) = 0.00091 e+/pulse<br>
+
R(upstream) = 0 e+/pulse<br>
−
<span style="color:red">About '''97%''' of photons are coming from the radiator according to PS. Very Good</span><br>
+
<span style="color:red">About '''0%''' of photons are coming from the radiator according to PS. </span><br>
 
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|<span style="color:red">'''2504'''</span>||Down<br> 86A||In ||Open ||In ||Yes ||In||DU cylinder  
 
|<span style="color:red">'''2504'''</span>||Down<br> 86A||In ||Open ||In ||Yes ||In||DU cylinder  

Revision as of 14:06, 21 September 2011

Here is what happened today:

  • current 140 mA
  • pulse width 2 us
  • rep rate 180 Hz
  • E = 25 MeV


Run # Beam Dump magnet Collimator add coll Hardener 1" Al Radiator 25 um Al Target Comments
2515 Up
90A		 In Open In Yes In DU cylinder Test radiator in/out.

144632 pulses
R(bottom) = 0 n/pulse -> × 180 Hz × 60 sec/min = 0 n/min
R(upstream) = 0 e+/pulse

2516 Up
90A		 In Open In Yes Out DU cylinder Test radiator in/out.

0 pulses
R(bottom) = 0 n/pulse
R(upstream) = 0 e+/pulse
About 0% of photons are coming from the radiator according to PS.

2504 Down
86A		 In Open In Yes In DU cylinder Test radiator in/out.

R(bottom) = 0.00137 n/pulse -> × 180 Hz × 60 sec/min = 14.8 n/min
R(upstream) = 0.0319 e+/pulse

2505 Down
86A		 In Open In Yes Out DU cylinder Test radiator in/out.

122247 pulses
R(bottom) = 0 n/pulse
R(upstream) = 0.000908 e+/pulse
About 97% of photons are coming from the radiator according to PS. Very Good


Production runs

Run # Beam Dump magnet Collimator add coll Hardener 1" Al Radiator 25 um Al Target Comments
2506 Up
90A		 In Open In Yes In DU cylinder Long production run: 972556 pulses (90 minute run)

Operator said the beam is really jittery
R(bottom) = 0.0013 n/pulse -> × 180 Hz × 60 sec/min = 14.0 n/min
R(upstream) = 0.0258 e+/pulse

2507 Down
86A		 In Open In Yes In DU cylinder Long production run: 973769 pulses (90 minute run)

R(bottom) = 0.001298 n/pulse -> × 180 Hz × 60 sec/min = 14.0 n/min
R(upstream) = 0.0288 e+/pulse

2508 Down
86A		 In Open In Yes Out DU cylinder Long production run: 300000 pulses (30 minute run)

R(bottom) = 6.6E-6 n/pulse -> × 180 Hz × 60 sec/min = 0.07 n/min
R(upstream) = 1.1E-3 e+/pulse

2509 Up
90A		 In Open In Yes In DU cylinder Long production run: 200092 pulses (20 minute run)

R(bottom) = 9.7E-4 n/pulse -> × 180 Hz × 60 sec/min = 10.5 n/min
R(upstream) = 22.8E-3 e+/pulse

2510 Up
90A		 In Open In Yes In DU cylinder Long production run: 766381 pulses (70 minute run)

R(bottom) = 9.8E-4 n/pulse -> × 180 Hz × 60 sec/min = 10.58 n/min
R(upstream) = 22.01E-3 e+/pulse

2511 Down
86A		 In Open In Yes In DU cylinder Long production run: 972771 pulses (90 minute run)

R(bottom) = 10.66E-4 n/pulse -> × 180 Hz × 60 sec/min = 11.5 n/min
R(upstream) = 25.5E-3 e+/pulse

2512 Down
86A		 In Open In Yes Out DU cylinder Long production run: 197313 pulses (20 minute run)

R(bottom) = 2E-5 n/pulse -> × 180 Hz × 60 sec/min = 0.22 n/min
R(upstream) = 1.02E-3 e+/pulse

2513 Down
86A		 In Open In Yes In None Long production run: 380333 pulses (30 minute run)

R(bottom) = 2.8E-5 n/pulse -> × 180 Hz × 60 sec/min = 0.31 n/min
R(upstream) = 24.8E-3 e+/pulse


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