Difference between revisions of "September 13, 2011"
| Line 13: | Line 13: | ||
|- | |- | ||
|2385||Up 2 mm||In ||Open ||Out||DU plate | |2385||Up 2 mm||In ||Open ||Out||DU plate | ||
| − | |align="left"|Beam check-in run. Beam hardener off. | + | |align="left"|Beam check-in run. Beam hardener off. DU plate 45/45 degree orientation. |
R(beam 45 left) = 6/173553 = 0.0000346 n/pulse <br> | R(beam 45 left) = 6/173553 = 0.0000346 n/pulse <br> | ||
R(beam 45 right) = 0/583758 = 0.0 n/pulse<br> | R(beam 45 right) = 0/583758 = 0.0 n/pulse<br> | ||
| Line 22: | Line 22: | ||
|2386||Up 2 mm||In ||Open ||Up 2 mm||DU plate | |2386||Up 2 mm||In ||Open ||Up 2 mm||DU plate | ||
|align="left"|Beam check-in run. 1" of Al hardener in front of upstream radiator. | |align="left"|Beam check-in run. 1" of Al hardener in front of upstream radiator. | ||
| + | R(beam 45 left) = n/pulse <br> | ||
| + | R(beam 45 right) = n/pulse<br> | ||
| + | R(beam down) = 90/79367 = 0.0011340 n/pulse<br> | ||
| + | R(upstream) = 1058/57841 = 0.01829 e+/pulse<br> | ||
| + | <span style="color:red">About 57% of photons are coming from the radiator according to PS. Bad</span><br> | ||
| + | <span style="color:red">About 92% of neutrons are coming from the radiator according to n detector down. Good</span> | ||
| + | |- | ||
| + | |2387||Up 2 mm||In ||Open ||Up 2 mm||DU plate | ||
| + | |align="left"|Beam check-in run. Target realignment, now the gammas hit the center of DU plate, which is as before 45/45 degree orientation | ||
R(beam 45 left) = n/pulse <br> | R(beam 45 left) = n/pulse <br> | ||
R(beam 45 right) = n/pulse<br> | R(beam 45 right) = n/pulse<br> | ||
Revision as of 15:28, 13 September 2011
summary what was been done
| Run # | Beam | Dump magnet | Collimator | Radiator 10 um Al | Target | Comments |
|---|---|---|---|---|---|---|
| 2385 | Up 2 mm | In | Open | Out | DU plate | Beam check-in run. Beam hardener off. DU plate 45/45 degree orientation.
R(beam 45 left) = 6/173553 = 0.0000346 n/pulse |
| 2386 | Up 2 mm | In | Open | Up 2 mm | DU plate | Beam check-in run. 1" of Al hardener in front of upstream radiator.
R(beam 45 left) = n/pulse |
| 2387 | Up 2 mm | In | Open | Up 2 mm | DU plate | Beam check-in run. Target realignment, now the gammas hit the center of DU plate, which is as before 45/45 degree orientation
R(beam 45 left) = n/pulse |