| Co-Investigator(Kenkyū-buntansha) |
JO Takeo Graduate school of Advanced Sciences of Matter, Professor, 大学院・先端物質科学研究科, 教授 (20093487)
SHIMADA Kenya Hiroshima Synchrotron Radiation Center, Research Associate, 放射光科学研究センター, 助手 (10284225)
SATO Hitoshi Faculty of Science, Research Associate, 理学部, 助手 (90243550)
NAMATAME Hirofumi Hiroshim Synchrotron Radiation Center, Professor, 放射光科学研究センター, 教授 (10218050)
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| Research Abstract |
The purpose of this study is to design and build soft x-ray inverse-photoemission spectrom-eters, to develope the resonant inverse-photoemission experiments on transition-metal and rare-earth elements in the core absorption regions and to reveal the mechanism of the inverse-photo-emission theoretically. For this purpose, we have built two inverse-photoemission spectrometers for hv= 10-100 eV and 100-1000 eV, where hv is an emitted photon energy.
For the spectrometers for hv= 10-100 eV, we have designed an optical system using non-periodic spherical gratings with d=600 and 1200 lines/ram, where d is a nominal groove density. On the other hand, for hv=l00-1000 eV, we have adopted a usual Rowland-type monochromator with spherical gratings with d=600, 1200 and 2400 lines/mm.
Since, an x-ray tube, a discharge lamp and an electron analyzer as well as the monochromator are mounted to the analysis chamber, the x-ray and ultraviolet photomission spectrocopis are also available . Furthermore, using the present monochromators and synchotron radiation from the compact storage ring at Hiroshima Synchrotron Radiation Center (HiSOR), we can also do the soft x-ray emission spectroscopy. The multiple studies of the electronic structure of materials are possible.
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