Difference between revisions of "September 20, 2011"

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(Created page with '[https://wiki.iac.isu.edu/index.php/Sept_PhotFisRun_44MeV_2011#Log_eBook go back] ==summary what was been done== {| border="1" cellspacing="0" style="text-align: center; width:…')
 
 
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[https://wiki.iac.isu.edu/index.php/Sept_PhotFisRun_44MeV_2011#Log_eBook go back]
 
[https://wiki.iac.isu.edu/index.php/Sept_PhotFisRun_44MeV_2011#Log_eBook go back]
  
−
==summary what was been done==
+
==Here is what happened today:==
 +
 
 +
* current 140 mA
 +
* pulse width 2 ns
 +
* rep rate 180 Hz
 +
* E = 25 MeV
 +
 
  
 
{| border="1" cellspacing="0" style="text-align: center; width: 1000px "
 
{| border="1" cellspacing="0" style="text-align: center; width: 1000px "
−
! scope="col" width="8%" | Run #
+
! scope="col" width="7.0%" | Run #
−
! scope="col" width="8%" | Beam
+
! scope="col" width="7.0%" | Beam
−
! scope="col" width="8%" | Dump magnet
+
! scope="col" width="7.0%" | Dump magnet
−
! scope="col" width="8%" | Collimator
+
! scope="col" width="7.0%" | Collimator
−
! scope="col" width="8%" | Radiator 10 um Al
+
! scope="col" width="7.0%" | add coll
−
! scope="col" width="8%" | Target
+
! scope="col" width="7.0%" | Hardener 1" Al
−
! scope="col" width="80%" | Comments
+
! scope="col" width="7.0%" | Radiator 25 um Al
 +
! scope="col" width="7.0%" | Target
 +
! scope="col" width="44%" | Comments
 
|-
 
|-
−
|2359||Centered||In ||Open ||Out||No
+
|<span style="color:red">'''2502'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||In||DU cylinder
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
−
R(upstream) = 157/40244 = 0.0039 e+/pulse,<br> R(downstream) = 183/40244 = 0.0045 e+/pulse
+
120664 pulses<br>
 +
R(bottom) = 0.0012 n/pulse  <span style="color:red"> -> × 180 Hz × 60 sec/min = '''12.9 n/min'''</span><br>
 +
R(upstream) = 0.0272 e+/pulse
 
|-
 
|-
−
|2360||Centered||In ||Open ||Centered||No
+
|<span style="color:red">'''2503'''</span>||Up<br> 90A||In ||Open ||In ||Yes ||Out||DU cylinder
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
−
R(upstream) = 898/40244 = 0.0223 e+/pulse,<br> R(downstream) = 1040/40244 = 0.0258 e+/pulse<br>
+
121258 pulses<br>
−
<span style="color:red">About 83% of photons are coming from the radiator. Good</span>
+
R(bottom) = 0 n/pulse<br>
 +
R(upstream) = 0.00091 e+/pulse<br>
 +
<span style="color:red">About '''97%''' of photons are coming from the radiator according to PS. Very Good</span><br>
 
|-
 
|-
−
|2361||Up 2 mm||In ||Open ||Up 2 mm||No
+
|<span style="color:red">'''2504'''</span>||Down<br> 86A||In ||Open ||In ||Yes ||In||DU cylinder
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
−
R(upstream) = 730/40839 = 0.0179 e+/pulse,<br> R(downstream) = 867/40839 = 0.0212 e+/pulse
+
R(bottom) = 0.00137 n/pulse  <span style="color:red"> -> × 180 Hz × 60 sec/min = '''14.8 n/min'''</span><br>
 +
R(upstream) = 0.0319 e+/pulse
 
|-
 
|-
−
|2362||Up 2 mm||In ||Open ||Out||No
+
|<span style="color:red">'''2505'''</span>||Down<br> 86A||In ||Open ||In ||Yes ||Out||DU cylinder
 
|align="left"|Test radiator in/out.
 
|align="left"|Test radiator in/out.
−
R(upstream) = 172/41035 = 0.0042 e+/pulse,<br> R(downstream) = 258/41035 = 0.0063 e+/pulse<br>
+
122247 pulses<br>
−
<span style="color:red">About 77% of photons are coming from the radiator. Good</span>
+
R(bottom) = 0 n/pulse<br>
 +
R(upstream) = 0.000908 e+/pulse<br>
 +
<span style="color:red">About '''97%''' of photons are coming from the radiator according to PS. Very Good</span><br>
 
|-
 
|-
−
|2363||Up 2 mm||In ||Open ||Out||No
 
−
|align="left"|Test radiator in/out. Added 1" Al hardener against Cu bricks after vacuum window.
 
  
−
R(upstream) = 87/41037 = 0.0021 e+/pulse,<br> R(downstream) = 119/41037 = 0.0029 e+/pulse<br>
+
|}
−
|-
 
−
|2364||Up 2 mm||In ||Open ||Up 2 mm||No
 
−
|align="left"|Test radiator in/out.
 
−
 
 
−
R(upstream) = 777/50837 = 0.0153 e+/pulse,<br> R(downstream) = 847/50837 = 0.0167 e+/pulse<br>
 
−
<span style="color:red">About 86% of photons are coming from the radiator. Good</span>
 
−
|-
 
−
|2365||Up 2 mm||In ||Open ||Up 2 mm||No
 
−
|align="left"|Test radiator in/out. Now 2" Al hardener against Cu bricks after vacuum window.
 
  
−
R(upstream) = 574/41235 = 0.0139 e+/pulse,<br> R(downstream) = 717/41235 = 0.0174 e+/pulse<br>
 
−
|-
 
−
|2366||Up 2 mm||In ||Open ||Out||No
 
−
|align="left"|Test radiator in/out.
 
  
−
R(upstream) = 117/41035 = 0.0028 e+/pulse,<br> R(downstream) = 136/41035 = 0.0033 e+/pulse<br>
+
<span style="color:blue">'''Production runs'''</span>
−
<span style="color:red">About 80% of photons are coming from the radiator. Good</span>
 
−
|-
 
−
|2367||Down 2 mm||In ||Open ||Out||No
 
−
|align="left"|Test radiator in/out. Removed 2" Al hardener
 
  
−
R(upstream) = 160/41036 = 0.0039 e+/pulse,<br> R(downstream) = 199/41036 = 0.0048 e+/pulse<br>
+
{| border="1" cellspacing="0" style="text-align: center; width: 1000px "
−
|-
+
! scope="col" width="7.%" | Run #
−
|2368||Down 2 mm||In ||Open ||Down 2 mm||No
+
! scope="col" width="7.%" | Beam
−
|align="left"|Test radiator in/out.
+
! scope="col" width="7.%" | Dump magnet
−
 
+
! scope="col" width="7.%" | Collimator
−
R(upstream) = 628/40639 = 0.0154 e+/pulse,<br> R(downstream) = 714/40639 = 0.0176 e+/pulse<br>
+
! scope="col" width="7.%" | add coll
−
<span style="color:red">About 75% of photons are coming from the radiator. Good</span>
+
! scope="col" width="7.%" | Hardener 1" Al
−
|-
+
! scope="col" width="7.%" | Radiator 25 um Al
−
|2369||Down 2 mm||In ||Open ||Down 2 mm||No
+
! scope="col" width="7.%" | Target
−
|align="left"|Test radiator in/out. Added 1" Al hardener against Cu bricks after vacuum window.
+
! scope="col" width="44%" | Comments
−
 
 
−
R(upstream) = 454/40640 = 0.0111 e+/pulse,<br> R(downstream) = 536/40640 = 0.0132 e+/pulse<br>
 
−
|-
 
−
|2370||Down 2 mm||In ||Open ||Out||No
 
−
|align="left"|Test radiator in/out.
 
−
 
 
−
R(upstream) = 98/40639 = 0.0024 e+/pulse,<br> R(downstream) = 112/40639 = 0.0027 e+/pulse<br>
 
−
<span style="color:red">About 78% of photons are coming from the radiator. Good</span>
 
−
|-
 
−
|2371||Up 2 mm||In ||Open ||Up 2 mm||No
 
−
|align="left"|Test radiator in/out to reproduce previous result. Same 1" Al hardener against Cu bricks after vacuum window.
 
−
 
 
−
R(upstream) = 935/40641 = 0.0230 e+/pulse,<br> R(downstream) = 1050/40641 = 0.0258 e+/pulse<br>
 
 
|-
 
|-
−
|2372||Up 2 mm||In ||Open ||Out||No
+
|<span style="color:blue">'''2506'''</span>||<span style="color:hotpink">Up</span><br> 90A||In ||Open ||In ||Yes ||In||DU cylinder
−
|align="left"|Test radiator in/out.
+
|align="left"|<span style="color:blue">'''Long production run: 972556 pulses (90 minute run)'''</span><br>
−
 
+
Operator said the beam is really jittery<br>
−
R(upstream) = 153/40640 = 0.0038 e+/pulse,<br> R(downstream) = 144/40640 = 0.0035 e+/pulse<br>
+
R(bottom) = 0.0013 n/pulse -> × 180 Hz × 60 sec/min = <span style="color:hotpink"> '''14.0 n/min'''</span><br>
−
<span style="color:red">About 84% of photons are coming from the radiator. Good</span>
+
R(upstream) = 0.0258 e+/pulse<br>
 
|-
 
|-
−
|2374||Up 2 mm||In ||Open ||Up 2 mm||DU plate
+
|<span style="color:blue">'''2507'''</span>||<span style="color:green">Down</span><br> 86A||In ||Open ||In ||Yes ||In||DU cylinder
−
|align="left"|DU plate oriented 45 and 45 degree. Same 1" Al hardener upstream of collimator.
+
|align="left"|<span style="color:blue">'''Long production run: 973769 pulses (90 minute run)<br>'''</span>
−
Too short
+
R(bottom) = 0.001298 n/pulse -> × 180 Hz × 60 sec/min = <span style="color:green"> '''14.0 n/min'''</span><br>
 +
R(upstream) = 0.0288 e+/pulse<br>
 
|-
 
|-
−
|2375||Up 2 mm||In ||Open ||Up 2 mm||DU plate
+
|<span style="color:blue">'''2508'''</span>|| Down <br> 86A||In ||Open ||In ||Yes ||<span style="color:aqua">Out</span>||DU cylinder
−
|align="left"|Same. Re-doing 2374
+
|align="left"|<span style="color:blue">'''Long production run: 300000 pulses (30 minute run)<br>'''</span>
−
R(beam left) = 0.0003 n/pulse<br>
+
R(bottom) = 6.6E-6 n/pulse ->  × 180 Hz × 60 sec/min =  <span style="color:aqua"> '''0.07 n/min'''</span><br>
−
R(beam right) = 0.00024 n/pulse<br>
+
R(upstream) = 1.1E-3 e+/pulse<br>
−
R(upstream) = 0.022 e+/pulse
 
 
|-
 
|-
−
|2376||Up 2 mm||In ||Open ||Out||DU plate
+
|<span style="color:blue">'''2509'''</span>||<span style="color:hotpink">Up</span><br> 90A||In ||Open ||In ||Yes ||In||DU cylinder
−
|align="left"|R(beam left) =  0/176520 = 0 n/pulse<br>
+
|align="left"|<span style="color:blue">'''Long production run: 200092 pulses (20 minute run)<br>'''</span>
−
R(beam right) =  0/176520 = 0 n/pulse<br>
+
R(bottom) = 9.7E-4 n/pulse -> × 180 Hz × 60 sec/min =  <span style="color:hotpink"> '''10.5 n/min'''</span><br>
−
R(upstream) = 659/176520 = 0.0037 e+/pulse
+
R(upstream) = 22.8E-3 e+/pulse<br>
−
 
 
−
<span style="color:red">About 83% of photons are coming from the radiator. Good</span>
 
 
|-
 
|-
−
|2377||Down 2 mm||In ||Open ||Out||DU plate
+
|<span style="color:blue">'''2510'''</span>||<span style="color:hotpink">Up</span><br> 90A||In ||Open ||In ||Yes ||In||DU cylinder
−
|align="left"|R(beam left) =  6/166815 = 0.0000359 n/pulse<br>
+
|align="left"|<span style="color:blue">'''Long production run: 766381 pulses (70 minute run)<br>'''</span>
−
R(beam down) = 4/166815 = 0.0000239 n/pulse<br>
+
R(bottom) = 9.8E-4 n/pulse -> × 180 Hz × 60 sec/min = <span style="color:hotpink"> '''10.58 n/min'''</span><br>
−
R(beam right) = 20/166815 = 0.000119 n/pulse<br>
+
R(upstream) = 22.01E-3 e+/pulse<br>
−
R(upstream) = 411/166815 = 0.0025 e+/pulse<br>
 
−
R(upstream) = 423/166815 = 0.0025 e+/pulse
 
 
|-
 
|-
−
|2378||Down 2 mm||In ||Open ||Down 2 mm||DU plate
+
|<span style="color:blue">'''2511'''</span>||<span style="color:green">Down</span><br> 86A||In ||Open ||In ||Yes ||In||DU cylinder
−
|align="left"|R(beam 45 left) =  0.000139 n/pulse<br>
+
|align="left"|<span style="color:blue">'''Long production run: 972771 pulses (90 minute run)<br>'''</span>
−
R(beam down) = 174/238320 = 0.000730 n/pulse<br>
+
R(bottom) = 10.66E-4 n/pulse -> × 180 Hz × 60 sec/min = <span style="color:green"> '''11.5 n/min'''</span><br>
−
R(beam 45 right) = 0.000151 n/pulse<br>
+
R(upstream) = 25.5E-3 e+/pulse<br>
−
R(upstream) =  3258/238320 = 0.0137 e+/pulse<br>
 
−
R(upstream) = 3757/238320 = 0.0158 e+/pulse
 
−
 
 
−
<span style="color:red">About 82% of photons are coming from the radiator. Good</span>
 
 
|-
 
|-
−
|<span style="color:blue">'''2379'''</span>||Down 2 mm||In ||Open ||Down 2 mm||DU plate
+
|<span style="color:blue">'''2512'''</span>|| Down <br> 86A||In ||Open ||In ||Yes ||<span style="color:aqua">Out</span>||DU cylinder
−
|align="left"|Increased voltage on 2 photonics (A22 & A24) detectors from -1600 -> -1700 V. <span style="color:blue">'''Production run.'''</span>
+
|align="left"|<span style="color:blue">'''Long production run: 197313 pulses (20 minute run)<br>'''</span>  
−
R(beam 45 left) = 285/600204 = 0.00047 n/pulse (A22)<br>
+
R(bottom) = 2E-5 n/pulse -> × 180 Hz × 60 sec/min = <span style="color:aqua"> '''0.22 n/min'''</span><br>
−
R(beam 45 right) = 143/600204 = 0.00024 n/pulse<br>
+
R(upstream) = 1.02E-3 e+/pulse<br>
−
R(beam down) =  573/600204 = 0.00095 n/pulse<br>
 
−
R(upstream) = 10500/600204 = 0.01750 e+/pulse<br>
 
 
|-
 
|-
−
|<span style="color:blue">'''2380'''</span>||Down 2 mm||In ||Open ||Out||DU plate
+
|<span style="color:blue">'''2513'''</span>|| Down <br> 86A||In ||Open ||In ||Yes ||In ||<span style="color:brown">None</span>
−
|align="left"| <span style="color:blue">'''Production run.'''</span>
+
|align="left"|<span style="color:blue">'''Long production run: 380333 pulses (30 minute run)<br>'''</span>  
−
R(beam 45 left) =  1/216331 = 0.00000462 n/pulse <br>
+
R(bottom) = 2.8E-5 n/pulse ->  × 180 Hz × 60 sec/min =  <span style="color:brown"> '''0.31 n/min'''</span><br>
−
R(beam 45 right) = 2/216331 = 0.00000924 n/pulse<br>
+
R(upstream) = 24.8E-3 e+/pulse<br>
−
R(beam down) =  2/216331 = 0.00000924 n/pulse<br>
 
−
R(upstream) =  449/216331 = 0.00207 e+/pulse<br>
 
−
<span style="color:red">About 88% of photons are coming from the radiator. Good</span>
 
−
|-
 
−
|<span style="color:blue">'''2381'''</span>||Up 2 mm||In ||Open ||Out||DU plate
 
−
|align="left"| <span style="color:blue">'''Production run.'''</span>
 
−
R(beam 45 left) = 4/171170 = 0.0000234 n/pulse <br>
 
−
R(beam 45 right) = 5/171170 = 0.0000292 n/pulse<br>
 
−
R(beam down) = 6/171170 = 0.0000350 n/pulse<br>
 
−
R(upstream) =  0.00348 e+/pulse<br>
 
−
|-
 
−
|<span style="color:blue">'''2382'''</span>||Up 2 mm||In ||Open ||Up 2 mm||DU plate
 
−
|align="left"| <span style="color:blue">'''Production run.'''</span>
 
−
R(beam 45 left) = 475/583758 = 0.00081 n/pulse <br>
 
−
R(beam 45 right) = 225/583758 = 0.00038 n/pulse<br>
 
−
R(beam down) = 788/583758 = 0.00135 n/pulse<br>
 
−
R(upstream) = 16890/583758 = 0.02893 e+/pulse<br>
 
−
<span style="color:red">About 88% of photons are coming from the radiator. Good</span>
 
 
|-
 
|-
  
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+
[https://wiki.iac.isu.edu/index.php?title=September_20,_2011 go up]
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[https://wiki.iac.isu.edu/index.php?title=September_20,_2011&action=edit&redlink=1 go up]
 

Latest revision as of 22:06, 21 September 2011

go back

Here is what happened today:

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


Run # Beam Dump magnet Collimator add coll Hardener 1" Al Radiator 25 um Al Target Comments
2502 Up
90A		 In Open In Yes In DU cylinder Test radiator in/out.

120664 pulses
R(bottom) = 0.0012 n/pulse -> × 180 Hz × 60 sec/min = 12.9 n/min
R(upstream) = 0.0272 e+/pulse

2503 Up
90A		 In Open In Yes Out DU cylinder Test radiator in/out.

121258 pulses
R(bottom) = 0 n/pulse
R(upstream) = 0.00091 e+/pulse
About 97% of photons are coming from the radiator according to PS. Very Good

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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