Difference between revisions of "September 14, 2011"

Revision as of 15:05, 14 September 2011

summary what was been done

Run #	Beam	Dump magnet	Collimator	Hardener	Radiator 10 um Al	Target	Comments
2418	Up 2 mm	In	Open	Yes	Out	DU plate	Beam check-in run. DU plate 45/45 degree orientation and gammas hit the bottom right corner of plate from upstream view. R(beam 45 left) = 6/173553 = 0.0000346 n/pulse R(beam 45 right) = 0/583758 = 0.0 n/pulse R(beam down) = 15/173553 = 0.0000864 n/pulse R(upstream) = 1374/173553 = 0.00792 e+/pulse Lost beam

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 ! scope="col" width="100%" | Comments
 |-
-|2385||Up 2 mm||In ||Open ||No ||Out||DU plate
+|2418||Up 2 mm||In ||Open ||Yes ||Out||DU plate
-|align="left"|Beam check-in run. Beam hardener off. DU plate 45/45 degree orientation and gammas hit the bottom right corner of plate from upstream view.
+|align="left"|Beam check-in run. DU plate 45/45 degree orientation and gammas hit the bottom right corner of plate from upstream view.
 R(beam 45 left) = 6/173553 = 0.0000346 n/pulse <br>
 R(beam 45 right) = 0/583758 = 0.0 n/pulse<br>
@@ Line 19: / Line 19: @@
 R(upstream) =  1374/173553 = 0.00792 e+/pulse<br>
 <span style="color:red">Lost beam</span>
-|-
-|2386||Up 2 mm||In ||Open ||1" Al ||Up 2 mm||DU plate
-|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 ||1" Al ||Up 2 mm||DU plate
-|align="left"|<span style="color:red">Lost beam</span>
-|-
-|2388||Up 2 mm||In ||Open ||1" Al ||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 right) =  n/pulse<br>
-R(beam down) =  n/pulse<br>
-R(upstream) =   e+/pulse<br>
-<span style="color:red">About % of photons are coming from the radiator according to PS. Bad</span><br>
-|-
-|2389-2395||Up 2 mm||In ||Open ||1" Al ||Up 2 mm||DU plate
-|align="left"|Detectors set-up. Two of them are non-working.
-|-
-|2396||Up 2 mm||In ||Open ||1" Al ||Up 2 mm||DU plate
-|align="left"|HV on A22 and A24 are -1700V. Detector check run. All setup as before. Radiator in/out test
-R(beam 45 left) =  104/216929 = 0.000479 n/pulse <br>
-R(beam 45 right) =  62/216929 = 0.000286 n/pulse<br>
-R(beam down) =  300/216929 = 0.001383 n/pulse<br>
-R(upstream) =  4787/216929 = 0.02207 e+/pulse<br>
-|-
-|2397||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|Radiator in/out test
-R(beam 45 left) = 9/200289 = 0.0000449 n/pulse <br>
-R(beam 45 right) =  8/200289 = 0.0000399 n/pulse<br>
-R(beam down) = 19/200289 = 0.0000949 n/pulse<br>
-R(upstream) =  1113/200289 = 0.00556 e+/pulse<br>
-<span style="color:red">About 75% of photons are coming from the radiator according to PS</span><br>
-|-
-|2398||Down 2 mm||In ||Open ||1" Al ||Down 2 mm||DU plate
-|align="left"|Radiator in/out test
-R(beam 45 left) =  n/pulse <br>
-R(beam 45 right) =  n/pulse<br>
-R(beam down) =  n/pulse<br>
-R(upstream) =   e+/pulse<br>
-|-
-|2399||Down 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|Radiator in/out test
-R(beam 45 left) =  n/pulse <br>
-R(beam 45 right) =  n/pulse<br>
-R(beam down) =  n/pulse<br>
-R(upstream) =   e+/pulse<br>
-<span style="color:red">About % of photons are coming from the radiator according to PS.</span><br>
-|-
-|2400||Up 2 mm||In ||Open ||1" Al ||Out||No
-|align="left"|
-|-
-|2401||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|
-|-
-|2402||Up 2 mm||In ||Open ||1" Al ||Up 2 mm||DU plate
-|align="left"|Oleksiy moved radiator in
-|-
-|2403||Up 2 mm||In ||Open ||1" Al ||Up 2 mm||DU plate
-|align="left"|Jason moved radiator in. Same results.
-|-
-|2404||Center||In ||Open ||1" Al ||In||DU plate
-|align="left"|
-|-
-|2405||Center||In ||Open ||1" Al ||In||DU plate
-|align="left"|DU plate was repositioned. Now beam should hit small part of the target corner.
-|-
-|2406||Center||In ||Open ||1" Al ||In||DU plate
-|align="left"|Same as 2405
-|-
-|2407||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|Additional shielding added around the core part of the beam pipe (downstream the radiator)
-|-
-|2408||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|Same as 2407 but additional shielding removed to improve background countime rate
-|-
-|2409||Up 2 mm||In ||Open ||1" Al ||Up 2 mm ||DU plate
-|align="left"|
-|-
-|2410||Up 2 mm||In ||Open ||1" Al ||Up 2 mm ||DU plate
-|align="left"|Beam tuned up a bit, new camera was installed
-|-
-|2411||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"|
-|-
-|2412||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| Put additional shielding around conical part of the beam pipe.
-|-
-|2413||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| same as 2412. slits @ 300
-|-
-|2414||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| same as 2412. slits @ 200
-|-
-|2415||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| same as 2412. slits @ 100
-|-
-|2416||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| same as 2412. slits @ 60
-|-
-|2417||Up 2 mm||In ||Open ||1" Al ||Out||DU plate
-|align="left"| same as 2412. slits @ 60. Anode voltage is lowered from 3.9 to 3.0 arb. units
 |-

Difference between revisions of "September 14, 2011"

Revision as of 15:05, 14 September 2011

summary what was been done

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