BL-28A/B　Variable polarization VUV・SX varied-line spacing plane grating monochromator

BL-28A　　 High-resolution angle-resolved photoemission beamline
BL-28B　　 High-resolution VUV-SX spectroscopy beamline

Kanta Ono 5659(PHS:4205)

kanta.ono@kek.jp

1. Outline

BL-28 is a variable polarization undulator beamline and is covered a vacuum ultraviolet and soft x-ray region of 30- 300 eV. For high-resolution ARPES experiments, high-throughput, high-resolution monochromator is designed and installed at BL-28.

2. Performance

Optical system : cf. attached figure
Energy region : 30-300 eV (linear), 40-300 eV (circular)
Polarization : Circular (left, right), Linear (horizontal)
Resolution : （E/ΔE）= 3×10⁴ at 30 eV, 2×10⁴ at 65 eV,
Photon flux : 10¹¹- 10¹² photons/sec
Beamsize : 0.2 mm (H) × 0.1mm (V)

3. BL-28A : High-resolution ARPES

Gammadata Scienta SES-2002
Energy resolution : 6 meV at 40 eV (best)
10-15 meV (typycal)
Sample temperature : 10 - 300 K

　　　　　　　　　　　　　　　　　　
4. BL-28B : VUV-SX free port

Last Updated: 2013-04-18