The main purpose
The front end area is the first component to connect the storage ring. It provides static vacuum isolation and dynamic vacuum protection for the storage ring to avoid catastrophic accidents caused by vacuum leaks in the beamline. It shields harmful high-energy radiation and protects the staff of the storage ring hall and experimental station Personal injury; Absorb excess radiation power to prevent various components from being destroyed by excessive heat load; Standardize the window of the radiation source to provide a beam that matches the beam line with horizontal and vertical opening angles.
Mainly consists of movable light screen, fixed diaphragm, pneumatic valve, quick response valve, water-cooled shutter, safety shutter, etc.
Ultimate vacuum degree: 5 × 10-8Pa
Electron storage ring energy: 3.5GeV
Photon energy: 0.1 ~ 40 keV