HES HKS meeting14/Apr/2011

T.Gogami

2/Apr/2011, Frankfurt, Germany

Lady justice

Itinerary• Newport News, US (JLab)

– 2/01 Narita US

– 2/27-28 HES HKS collaboration meeting, 4th JSPS core to core meeting

– 3/11 Norfolk Washington D.C.• The Great earthquake news when I woke up!

– 3/12 Washington D.C Frankfurt• Mainz, Germany (Mainz Univ.)

– 3/17-18 KaOS meeting in Mainz• Extend to stay in Germany ( 3/214/4 )

• Darmstadt, Germany (GSI)– 3/30 – 4/4

– 4/4 Frankfurt Narita• Fukushima, Japan

– Tokyo(4/5) Fukushima(4/6)• Sendai, Japan

– Fukushima(4/11) Sendai(4/11)

Analysis (Tracking)

Analysis (Rate , Efficiency), JPS

Meeting, Inside GSI

Analysis code , Shift , cabling

Contents

• KTOF TDC cut test• KDC layer rates output

KDC hit wire selection code

• GREEN region Selective region• RED markers & lines Selected hit wires• BLACK markers & lines Rejected hit wires

KDC1 KDC2

KTOF TDC

• Cut10000 – 50000 (current)18000 – 20500 (test)

Run 76314 for CH2 targetRun 77124 for 52Cr target

Results after KTOF TDC cut

7.6 [μA] , 52Cr , 77124– After TDC cut Error– Analysis time ~20% reduction

2.0 [μA] , CH2 , 76315

KTOF TDC

• Cur Region2100 – 2400 (Accidental)2600 – 2800 (signal)

Run 76314 for CH2 targetRun 77124 for 52Cr target

KDC DC

Rate

Efficiency

KDC Rate vs. Efficiency

• Looks two tendencies– Applied voltages ?– Threshold ?

Need to check Run sheet

Summary and to do• Summary

– KTOF TDC cut• No bad effects for Number of Kaon• Analysis time is faster• Check sub peaks

– Rate vs. Efficiency of KDC• Two tendencies Check KDC applied voltage and threshold

• To do– HES

• Tracking• Efficiency, Rate

– E01-011– 授業料免除– RA– 学振– 5/6 ----- 8/1 Germany

• あと 3週間で出発！

End

31/Mar/2011, Darmstadt, Germany