1. 3/31/2005 KEK, Japan 1 G4Beamline for KEK test K. Yonehara Illinois Institute of Tech

2. 3/31/2005KEK, Japan2  beam line

3. 3/31/2005KEK, Japan3

4. 3/31/2005KEK, Japan4

5. 3/31/2005KEK, Japan5 Initial beam

6. 3/31/2005KEK, Japan6 Produced Pion & Muon Spectra in the dynamic aperture of  2 line Inner target

7. 3/31/2005KEK, Japan7 Beam transport (1)

8. 3/31/2005KEK, Japan8 Beam transport (2)

9. 3/31/2005KEK, Japan9

10. 3/31/2005KEK, Japan10 Pion spectrum at tracker position # of proton = 10 6

11. 3/31/2005KEK, Japan11 Experiment & Simulation

12. 3/31/2005KEK, Japan12 Conclusion ► Beam simulation study for KEK beam line has been done in g4beamline. ► The pion and muon spectra in the dynamic aperture of beam line were extracted. ► Track pions and muons in the beam line. ► Extract spectra of pion and muon at the end of beam line.

13. 3/31/2005KEK, Japan13 Next to do ► Optimize the field parameters to extract the low momentum muon.  Is there any limitation to adjust parameters? ► Compare the simulation results with the experimental one.  Slit size?  Field parameters?