| Magnet Unit(s) | 3027 |
|---|---|
| Typical BDES | < 0.16 kGm |
| Typical Current | <12 A |
| Typical PS Voltage | <10 V |
| Nominal Beta X | 90 m |
| Nominal Eta X | -0.29 m |
| Nominal Beta Y | 7.2 m |
| Nominal Eta Y | -0.004 m |
LER HK1 is a horizontal steering magnet near the interaction point.
It is a little unusual that a steering magnet has an "LGPS" designation. For several of the steering magnets near the IP the LGPS designation comes from the fact that their steering function is combined with a modeled deflection. This is the case in LER IR2 for the VK2, HK1, and VCOR1 magnets.
This category of magnet has "dual database" where one magnet type (LGPS for the modeled bending) shares a physical magnet and power supply with another magnet type (XCOR or YCOR for steering). "Dual database" magnets have software complications outside the scope of this document.
For the HK1 magnets, the modeled deflection arises from the magnet's role as a "soft bend", allowing the beam to be directed horizontally towards the IP without generating a large synchrotron radiation column.