Difference between revisions of "September 20, 2011"

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R(upstream) = 898/40244 = 0.0223 e+/pulse,<br> R(downstream) = 1040/40244 = 0.0258 e+/pulse<br>
 
R(upstream) = 898/40244 = 0.0223 e+/pulse,<br> R(downstream) = 1040/40244 = 0.0258 e+/pulse<br>
 
<span style="color:red">About 83% of photons are coming from the radiator. Good</span>
 
<span style="color:red">About 83% of photons are coming from the radiator. Good</span>
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|-
 
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|2361||Up 2 mm||In ||Open ||Up 2 mm||No
 
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|align="left"|Test radiator in/out.
 
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R(upstream) = 730/40839 = 0.0179 e+/pulse,<br> R(downstream) = 867/40839 = 0.0212 e+/pulse
 
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|-
 
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|2362||Up 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out.
 
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R(upstream) = 172/41035 = 0.0042 e+/pulse,<br> R(downstream) = 258/41035 = 0.0063 e+/pulse<br>
 
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<span style="color:red">About 77% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2363||Up 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out. Added 1" Al hardener against Cu bricks after vacuum window.
 
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R(upstream) = 87/41037 = 0.0021 e+/pulse,<br> R(downstream) = 119/41037 = 0.0029 e+/pulse<br>
 
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|-
 
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|2364||Up 2 mm||In ||Open ||Up 2 mm||No
 
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|align="left"|Test radiator in/out.
 
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R(upstream) = 777/50837 = 0.0153 e+/pulse,<br> R(downstream) = 847/50837 = 0.0167 e+/pulse<br>
 
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<span style="color:red">About 86% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2365||Up 2 mm||In ||Open ||Up 2 mm||No
 
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|align="left"|Test radiator in/out. Now 2" Al hardener against Cu bricks after vacuum window.
 
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R(upstream) = 574/41235 = 0.0139 e+/pulse,<br> R(downstream) = 717/41235 = 0.0174 e+/pulse<br>
 
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|-
 
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|2366||Up 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out.
 
−
 
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R(upstream) = 117/41035 = 0.0028 e+/pulse,<br> R(downstream) = 136/41035 = 0.0033 e+/pulse<br>
 
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<span style="color:red">About 80% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2367||Down 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out. Removed 2" Al hardener
 
−
 
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R(upstream) = 160/41036 = 0.0039 e+/pulse,<br> R(downstream) = 199/41036 = 0.0048 e+/pulse<br>
 
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|-
 
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|2368||Down 2 mm||In ||Open ||Down 2 mm||No
 
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|align="left"|Test radiator in/out.
 
−
 
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R(upstream) = 628/40639 = 0.0154 e+/pulse,<br> R(downstream) = 714/40639 = 0.0176 e+/pulse<br>
 
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<span style="color:red">About 75% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2369||Down 2 mm||In ||Open ||Down 2 mm||No
 
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|align="left"|Test radiator in/out.  Added 1" Al hardener against Cu bricks after vacuum window.
 
−
 
−
R(upstream) = 454/40640 = 0.0111 e+/pulse,<br> R(downstream) = 536/40640 = 0.0132 e+/pulse<br>
 
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|-
 
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|2370||Down 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out.
 
−
 
−
R(upstream) = 98/40639 = 0.0024 e+/pulse,<br> R(downstream) = 112/40639 = 0.0027 e+/pulse<br>
 
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<span style="color:red">About 78% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2371||Up 2 mm||In ||Open ||Up 2 mm||No
 
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|align="left"|Test radiator in/out to reproduce previous result. Same 1" Al hardener against Cu bricks after vacuum window.
 
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R(upstream) = 935/40641 = 0.0230 e+/pulse,<br> R(downstream) = 1050/40641 = 0.0258 e+/pulse<br>
 
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|-
 
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|2372||Up 2 mm||In ||Open ||Out||No
 
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|align="left"|Test radiator in/out.
 
−
 
−
R(upstream) = 153/40640 = 0.0038 e+/pulse,<br> R(downstream) = 144/40640 = 0.0035 e+/pulse<br>
 
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<span style="color:red">About 84% of photons are coming from the radiator. Good</span>
 
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|2374||Up 2 mm||In ||Open ||Up 2 mm||DU plate
 
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|align="left"|DU plate oriented 45 and 45 degree. Same 1" Al hardener upstream of collimator.
 
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Too short
 
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|2375||Up 2 mm||In ||Open ||Up 2 mm||DU plate
 
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|align="left"|Same. Re-doing 2374
 
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R(beam left) = 0.0003 n/pulse<br>
 
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R(beam right) = 0.00024 n/pulse<br>
 
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R(upstream) = 0.022 e+/pulse
 
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|-
 
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|2376||Up 2 mm||In ||Open ||Out||DU plate
 
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|align="left"|R(beam left) =  0/176520 = 0 n/pulse<br>
 
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R(beam right) =  0/176520 = 0 n/pulse<br>
 
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R(upstream) =  659/176520 = 0.0037 e+/pulse
 
−
 
−
<span style="color:red">About 83% of photons are coming from the radiator. Good</span>
 
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|-
 
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|2377||Down 2 mm||In ||Open ||Out||DU plate
 
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|align="left"|R(beam left) =  6/166815 = 0.0000359 n/pulse<br>
 
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R(beam down) =  4/166815 = 0.0000239 n/pulse<br>
 
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R(beam right) = 20/166815 = 0.000119 n/pulse<br>
 
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R(upstream) = 411/166815 = 0.0025 e+/pulse<br>
 
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R(upstream) = 423/166815 = 0.0025 e+/pulse
 
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|-
 
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|2378||Down 2 mm||In ||Open ||Down 2 mm||DU plate
 
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|align="left"|R(beam 45 left) =  0.000139 n/pulse<br>
 
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R(beam down) = 174/238320 = 0.000730 n/pulse<br>
 
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R(beam 45 right) = 0.000151 n/pulse<br>
 
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R(upstream) =  3258/238320 = 0.0137 e+/pulse<br>
 
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R(upstream) =  3757/238320 = 0.0158 e+/pulse
 
−
 
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<span style="color:red">About 82% of photons are coming from the radiator. Good</span>
 
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|-
 
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|<span style="color:blue">'''2379'''</span>||Down 2 mm||In ||Open ||Down 2 mm||DU plate
 
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|align="left"|Increased voltage on 2 photonics (A22 & A24) detectors from -1600 -> -1700 V. <span style="color:blue">'''Production run.'''</span>
 
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R(beam 45 left) =  285/600204 = 0.00047 n/pulse (A22)<br>
 
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R(beam 45 right) = 143/600204 = 0.00024 n/pulse<br>
 
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R(beam down) =  573/600204 = 0.00095 n/pulse<br>
 
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R(upstream) =  10500/600204 = 0.01750 e+/pulse<br>
 
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|-
 
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|<span style="color:blue">'''2380'''</span>||Down 2 mm||In ||Open ||Out||DU plate
 
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|align="left"| <span style="color:blue">'''Production run.'''</span>
 
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R(beam 45 left) =  1/216331 = 0.00000462 n/pulse <br>
 
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R(beam 45 right) = 2/216331 = 0.00000924 n/pulse<br>
 
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R(beam down) =  2/216331 = 0.00000924 n/pulse<br>
 
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R(upstream) =  449/216331 = 0.00207 e+/pulse<br>
 
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<span style="color:red">About 88% of photons are coming from the radiator. Good</span>
 
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|-
 
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|<span style="color:blue">'''2381'''</span>||Up 2 mm||In ||Open ||Out||DU plate
 
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|align="left"| <span style="color:blue">'''Production run.'''</span>
 
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R(beam 45 left) =  4/171170 = 0.0000234 n/pulse <br>
 
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R(beam 45 right) = 5/171170 = 0.0000292 n/pulse<br>
 
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R(beam down) =  6/171170 = 0.0000350 n/pulse<br>
 
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R(upstream) =  0.00348 e+/pulse<br>
 
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|-
 
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|<span style="color:blue">'''2382'''</span>||Up 2 mm||In ||Open ||Up 2 mm||DU plate
 
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|align="left"| <span style="color:blue">'''Production run.'''</span>
 
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R(beam 45 left) = 475/583758 = 0.00081 n/pulse <br>
 
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R(beam 45 right) = 225/583758 = 0.00038 n/pulse<br>
 
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R(beam down) = 788/583758 = 0.00135 n/pulse<br>
 
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R(upstream) =  16890/583758 = 0.02893 e+/pulse<br>
 
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<span style="color:red">About 88% of photons are coming from the radiator. Good</span>
 
 
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Revision as of 14:11, 20 September 2011

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summary what was been done

Run # Beam Dump magnet Collimator Radiator 10 um Al Target Comments
2359 Centered In Open Out No Test radiator in/out.

R(upstream) = 157/40244 = 0.0039 e+/pulse,
R(downstream) = 183/40244 = 0.0045 e+/pulse

2360 Centered In Open Centered No Test radiator in/out.

R(upstream) = 898/40244 = 0.0223 e+/pulse,
R(downstream) = 1040/40244 = 0.0258 e+/pulse
About 83% of photons are coming from the radiator. Good


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