.
MAX IV 3.0 GeV storage ring
The revised design entails building a larger 3.0 GeV ring with 20-cells in the lattice and
with an even lower horizontal emittance than for the original one described in the CDR. The
circumference has increased from 287 to 528 m. The design principle of scaling down the size
of the accelerator components and the larger ring allows the use of a larger number of magnets
or magnetic structures resulting in a further reduction in the emittance.
Circumference (m) |
528 |
Nr of straight sections |
20 |
Injection |
full energy, top-up |
Stored current (mA) |
500 |
Horizontal emittance (nm rad) |
0.2 - 0.3 |
Vertical emittance (nm rad) |
< 0.008 |
Horizontal beam size (σ µm) |
42- - 52 |
Vertical beam size (σ µm) |
< 6 |
MAX IV 1.5 GeV storage ring
The 1.5 GeV ring of the CDR will be replaced by a smaller ring with almost the same
circumference (96 m) as the present MAX II ring (90 m). The magnet cells are more compact
than those in MAX II, so 12-cells could be used instead of 10. The energy of this ring will
be 1.5 GeV. Since the ring will be significantly smaller compared to the one from the CDR
report (96 m circumference instead of 287 m) it will be placed in a separate experimental
hall next to the main building.
Circumference (m) |
96 |
Nr of straight sections |
12 |
Injection |
full energy, top-up |
Stored current (mA) |
500 |
Horizontal emittance (nm rad) |
6.0 |
Vertical emittance (nm rad) |
0.06 |
Horizontal beam size (σ µm) |
184 |
Vertical beam size (σ µm) |
13 |
