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| Inside of the synchrotron tunnel |
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Branch point of the synchrotron (left)
and beam transport line SSBT (right) |
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The electron beam from the linear accelerator is accelerated up to 8 GeV with the booster synchrotron. The booster has a race track shape and its circumference is 396 m long. The lattice of the booster is FODO, in which a bending magnet and a quadrupole magnet are arranged alternately. The injection, acceleration and ejection are repeated at the repetition rate of 1 Hz. The harmonic number is 672. To inject a single bunch into the storage ring, the RF knock-out system is equipped, in which unwanted electrons neighboring the main bunch are knocked out. The dedicated timing system is used to inject the beam into any desired address of the storage ring.
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| beam energy (injection / ejection) |
0.9 - 1.15 GeV / 8 GeV |
| circumference |
396.124 m |
| normal lattice |
FODO |
| number of cells / symmetry |
40 cells / 2 |
| number of bending magnets |
64 |
| number of quadrupole magnets (focus / defocus) |
40 / 40 |
| current |
10 mA |
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emittance (8 GeV)
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230 nm•rad |
| repetition |
1 - 8 pps (1Hz) |
| RF frequency |
508.58 MHz |
| acceleration voltage (8GeV) |
18.2 MV |
| energy spread (8GeV) σE/E |
0.126 % |
| harmonic number |
672 |
| betatron tune horizontal / vertical |
11.73 / 8.78 |
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Last modified
2016-02-25 14:02
