ULTRAVIOLET INVERSE PHOTOEMISSION SPECTROGRAPH WITH PARALLEL MULTICHANNEL ISOCHROMAT ACQUISITION

A simple and cost effective inverse photoemission spectrograph based on a spherical grating with very large optical acceptance ( f/2.8) is described. The system works in the 10–25 eV photon energy range. The dispersed photons are detected by a detector assembly based on a microchannelplate and consisting of twelve independent channels. Measurements are taken in the isochromat mode by sweeping the impinging electron energy, and the acquisition of the twelve channels is done in parallel. As an example of the apparatus performances data on polycrystalline Pt are presented.

[1]  E. Puppin,et al.  Simultaneous data acquisition and analysis on a single-task PC , 1990 .

[2]  Olcese,et al.  Ultraviolet inverse-photoemission spectroscopy of Gd silicides. , 1990, Physical review. B, Condensed matter.

[3]  F. Ciccacci,et al.  Photon energy dependence of inverse photoemission from LaPd3 in the ultraviolet range , 1990 .

[4]  Bisi,et al.  Empty electronic states of calcium silicides: An inverse-photoemission investigation in the ultraviolet photon range. , 1989, Physical review. B, Condensed matter.

[5]  Pan,et al.  Resonant enhancement of inverse photoemission transitions in bulk niobium. , 1989, Physical review. B, Condensed matter.

[6]  Weaver,et al.  Resonant inverse photoemission involving transition-metal 3p-3d subshell interactions. , 1988, Physical Review B (Condensed Matter).

[7]  Yongli Gao,et al.  Inverse photoemission spectrometer for interface studies , 1988 .

[8]  L. Braicovich,et al.  The empty electron-states in MoS2: An inverse photoemission spectroscopy investigation , 1988 .

[9]  Peter D. Johnson,et al.  Normal incidence grating spectrometer designed for inverse photoemission studies in the range 10–30 eV , 1986 .

[10]  A. Marx,et al.  Normal‐incidence grating spectrograph with large acceptance for inverse photoemission , 1985 .

[11]  V. Dose.  Momentum-Resolved Inverse Photoemission , 1985 .

[12]  G. Chauvet,et al.  Inverse photoemission spectrometer in the range 20–100 eV , 1981 .

[13]  V. Dose.  VUV isochromat spectroscopy , 1977 .

[14]  W. Franzen,et al.  Energy Spectrum of Electrons Emitted by a Hot Cathode , 1976 .