magnet study bh curve beamline calibration study raster effect? contents
TRANSCRIPT
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HKS-HES
D.Kawama
HES Status ReportSep ’07 Part1
Magnet Study•BH Curve•Beamline
Calibration Study
•Raster effect?
• Contents
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HKS-HESHow to calibrate HES+HKS+SPL?
Sieve Slit Run
• For angular calibration• Use in proton target run?
Use some reaction• (e,e’e+e-) • can’t detect in E01-011• (e,e’p)• Kinematic adjustment will be necessary• Another reaction proton mom electron mom target mass Beam energy
1.2 0.967 0.938 1.552103411
1.3 1.1 0.938 1.765073298
1.1 0.85 0.938 1.357629275
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HKS-HESHES SS Hole Size
5.9*10-5 ~200(*10-33)?
Target Beam Thickness C Nvp L /hour (WHKS=10msr, Klive=0.3)
CH2 2 mA 460mg/cm2
*2/144.92*1035 5.8 ~60
H20 10mA 500mg/cm2
*2/182.08*1036 24.5 ~260
12C 30mA 100 mg/cm2 9.38*1035 5.5 (for 100nb/sr) ~6051V 30 mA 100 mg/cm2 2.21*1035 1.3 (for 100nb/sr) ~14
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HKS-HESNew FoM (collimator=-9cm)
8deg, 6cm
BG ~5M 12Enge
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HKS-HESNew FoM (collimator=-7cm)
7.5deg, 5.5cm
12EngeBG ~3M
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HKS-HESNew FoM (collimator=-5cm)
7deg, 5cm
12EngeBG ~3M
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HKS-HESNew FoM (collimator=-3cm)
6deg, 4.5cm
12EngeBG ~2M
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HKS-HESNew FoM (Summary)
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HKS-HESNext to do
TOSCA Study for HES Magnets
Resolution improvement•Divide momentum region•Modified ED Map •Kato. eq
EDC1, 2 Support Design
Sieve Slit Study •Yield, Resolution Study•Analysis Tool•Raster study
FoM Study •550 MeV/c case•Scattered in