03A1 BM - (HF-CGM) Photoabsorption/Photoluminescence


The HF-CGM high flux and high resolution beamline covers photon energies from 4 to 40 eV. This beamline, which collects 50 mrad of the horizontal radiation, uses a six-meter cylindrical grating monochromator (6m-CGM) with an incident angle of 70 degree instead of the conventional normal incidence monochromator (NIM) design. Special features, such as movable entrance slit, and movable curved exit slit, are employed to enhance greatly the beamline performance. With both slit openings set at 10 µm, the energy resolving power can reach as high as 45000. Photon fluxes of 1013 and 1010 photons/sec are expected for energy resolving power of 1000 and 40000, respectively. The image size at sample position is smaller than 0.45 mm × 0.2 mm.

Two end-stations can be simultaneously attached to the beamline. An extra pair of mirrors is located before End-station II to remove the high-order scattered lights in the low energies.

Areas of Research

Atomic molecules: Astrochemistry and Astrophysics. VUV/UV spectroscopy and Photoluminescence.  

Light Source

TypeSuperconductingWavelength Shifter
Source SizeHorizontalαh = 0.26 mm
Verticalαv = 0.039 mm
Energy RangeSemi white light 4~40 eV

Find a Beamline

03A1 Home



BL Schedule

Optical Layout




+886-3-578-0281 Ext. 1031

BL Spokesperson

Wu, Yu-Jong (吳宇中)
+886-3-578-0281 Ext. 7211

BL Manager/Local Contact

Chou, Sheng-Lung (周勝隆)
+886-3-578-0281 Ext. 3356


  • IR/Visible/UV/VUV Spectroscopy


  • Molecular science

General Information

  • Source: BM
  • Energy Range: 4~40 ev
  • Focused Spot Size: 0.45 × 0.2 mm
  • Status: Operational

National Synchrotron Radiation Research Center

101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu, Taiwan 30076