| case | position |
|---|---|
| Primary beam stops at some user's item | detector XXX, target YYY etc. |
| Primary beam goes into the D1 chamber | Beam dump |
| case | position |
|---|---|
| Δ Bρ/Bρ >30% | inside D1 magnet |
| Δ Bρ/Bρ 15 to 30% | D1-F1 duct |
| Δ Bρ/Bρ -15 to 15 % | F1 slit |
| Δ Bρ/Bρ -20 to -15% | D1-F1 duct |
| Δ Bρ/Bρ <-20% | inside D1 magnet |
| position | inside the duct around XXX |
|---|
| F2 (or F3) slit |
| inside the Wien filter |