P. L. Wang

New wiggler beamlines at BSRF.

A new multipole wiggler has been installed in the ring of the Beijing Electron Positron Collider (BEPC), and two new beamlines were extracted from it for experiments, including LIGA, microprobe fluorescence analysis, high-pressure diffraction and soft X-ray research. The beam profile and photon intensity were measured and compared with the calculated values. The main parameters and characteristics of the two beamlines are illustrated. Some experimental results are presented.

3B1 beam line and its physical properties

Abstract The 3B1 beam line is in the hall of 13# on BSRF, and is used for the lithography, biology and multilayer reflection research. On the line, there are a cylinder mirror system, a vacuum control system, an exposure chamber and a beryllium window for lithography research. The mirror coated with gold receives the synchrotron radiation at a glance angle of 1.5°, and scans in the vertical for lithography. The light, reflected by the scanning mirror and absorbed by the window, produces a spectrum of 4–20 A and a uniformity spot for the lithography.

SX‐visible photon beam lines 3B1A for lithography and 3B1B for biological spectroscopy at BSRL

The photon beam lines from beam port 3B1 recently constructed at Beijing Synchrotron Radiation Laboratory (BSRL) are beam lines for soft x‐ray lithography and VUV‐visible spectroscopy alternately. The commissioning of these beam lines has been carried out under both the parasitic and dedicated modes of the storage ring Beijing electron‐positron collider (BEPC). This article reports the status of these two beam lines as well as the comparison of the preliminary measurement results with the calculated synchrotron radiation spectra of these beam lines.