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Main parameters

Linac | RCS(3GeV) | MR(50GeV)

Main Parameters of 3 GeV Rapid-cycling Synchrotoron

Parameter value
Circumference   348.333 m
Average Radius   55.44 m
Injection Energy   0.181/0.4 GeV
Extraction Energy   3.0 GeV
Particle Per Pulse   8.3 x 1013
Revolution Period    
  at Injection 1.629 μs
  at Extraction 1.196 μs
Repetition Rate   25 Hz
Ramping Pattern   Sinusoid
  Injection ˜ 500 μs
  Acceleration 20ms
  Decreasing Field 20ms
Average Current   333 μA
Circulating Current    
  at Injection 8.2 A
  at Extraction 11.1 A
Bunching Factor    
  at Injection  
        fundamental 0.3
        with 2nd harmonics 0.4
  at Extraction 0.056
       for 3GeV users 0.2
       for 50GeV ring 0.3

If you want to know more detailed parameter, please refer here (pdf file)

ACCELERATOR TECHNICAL DESIGN REPORT FOR J-PARC Table 10.2.1.2

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