September 14, 2011

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summary what was been done

Run #	Beam	Dump magnet	Collimator	Hardener	Radiator 10 um Al	Target	Comments
2418	Up 90A	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 down) = 69/53880 = 0.0013 n/pulse R(upstream) = 0.0143 = e+/pulse
2419	Up 90A	In	Open	Yes	Up 2 mm	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 down) = 0.00104 n/pulse R(upstream) = 0.0157 = e+/pulse
2420	Up 95A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0013 n/pulse R(upstream) = e+/pulse
2421	Up 100A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0008 n/pulse R(upstream) = e+/pulse
2422	Up 85A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0011 n/pulse R(upstream) = e+/pulse
2423	Up 80A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.00108 n/pulse R(upstream) = 0.0015 e+/pulse
2425	Center 0A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0012 n/pulse R(upstream) = e+/pulse
2426	Down 80A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.00103 n/pulse R(upstream) = = e+/pulse
2427	Up 90A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.00093 n/pulse R(upstream) = 0.0158 e+/pulse
2428	Up 70A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0021 n/pulse R(upstream) = 0.016 e+/pulse
2429	Up 50A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.00086 n/pulse R(upstream) = 0.015 e+/pulse
2430	Up 60A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.00115 n/pulse R(upstream) = 0.0144 e+/pulse
2431	Up 75A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0015 n/pulse R(upstream) = 0.0167 e+/pulse
2432	Up 70A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0010 n/pulse R(upstream) = 0.018 e+/pulse
2433	Up 80A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0012 n/pulse R(upstream) = 0.0187 e+/pulse
2434	Up 70A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0012 n/pulse R(upstream) = 0.0146 e+/pulse
2435	Up 90A	In	Open	Yes	Up 2 mm	DU plate	Same. R(beam down) = 0.0011 n/pulse R(upstream) = 0.0142 e+/pulse
2438	Up 90A	In	Open	Yes	Up 2 mm	DU plate	Beam spot on the flag was readjusted R(beam down) = 0.00 n/pulse R(upstream) = 0.0 e+/pulse
...	A lot was done (see lab books) and after putting additional upstream and downstream collimator, finally:
2450	Up 2 mm	In	Open	Yes	Out	DU plate	Additional downstream collimator in. Additional upstream collimator in R(beam down) = 0.000031 n/pulse R(upstream) = 0.00085 e+/pulse
2451	Up 2 mm	In	Open	Yes	Up 2 mm	DU plate	Same additional radiator. Lost beam R(beam down) = 0.00027 n/pulse R(upstream) = 0.0039 e+/pulse
2452	Up 2 mm	In	Open	Yes	Up 2 mm	DU plate	Same additional radiator R(beam down) = 0.000153 n/pulse R(upstream) = 0.003 e+/pulse
2453	Down 2 mm	In	Open	Yes	Out	DU plate	Same additional radiator R(beam down) = 0.0000238 n/pulse R(upstream) = 0.00093 e+/pulse
2454	Down 2 mm	In	Open	Yes	Down 2 mm	DU plate	Same additional radiator. Lost beam
2455	Down 2 mm	In	Open	Yes	Down 2 mm	DU plate	Same additional radiator. Lost beam
2456	Down 2 mm	In	Open	Yes	Down 2 mm	DU plate	Same additional radiator R(beam down) = 0.0000238 n/pulse R(upstream) = 0.00093 e+/pulse

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