J-PARC Center Users Office
2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
Webmaster:<web-staff@j-parc.jp>
2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
Webmaster:<web-staff@j-parc.jp>
Main parameters
50GeV MR Main Parameters
| Parameters | Value |
| Circumference | 1567.5 m |
| Average Radius | 249.475 m |
| Injection Energy | 3 GeV |
| Extraction Energy | 30 GeV (50 GeV) |
| Revolution Period |
|
| at Injection | 5.384 μs |
| at Extraction | 5.231 μs |
| Harmonic number | 9 |
| Number of bunches | 8 |
| Transition gamma | j 31.7 |
| RF frequency at Injection | 1.67 MHz |
| RF frequency at Extraction | 1.72 MHz |
| RF voltage | 200 kV / 240 kV |
| Repetition Time for fast extraction | 3.2 s / 2.6 s |
| Repetition Time for slow extraction | 6.0 s |
| Acceleration Time | 1.9 s / 1.4 s |
| Tune for fast extraction | 22.40 (horizontal) 20.76 (vertical) |
| Tune for slow extraction | 22.30 (horizontal) 20.78 (vertical) |
