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Imai, Yasuhiko*; Yoda, Yoshitaka*; Kitao, Shinji*; Masuda, Ryo; Higashitaniguchi, Satoshi*; Inaba, Chika*; Seto, Makoto
Advances in X-ray/EUV Optics and Components II (Proceedings of SPIE Vol.6705), p.670512_1 - 670512_7, 2007/00
We have developed a high-resolution monochromator (HRM) for the measurement of nuclear resonant scattering of synchrotron radiation by 
Te at 35.49 keV using the backscattering of sapphire (9 1 -10 68). The relative energy resolution of 
is achieved, that is 7.5 meV in energy bandwidth. A new HRM has been desired at this energy region because of the low efficiency of usual Si HRMs. This HRM opens studies on element-specific dynamics and electronic state of substances containing Te.
Kishimoto, Maki
no journal, ,
To widen the field of application of the X-ray laser, higher repetition rate of X-ray laser is needed. Moreover, the study on effective generation of X-ray laser by optimizing pumping conditions is very important in order to achieve the high repetition rate. At Japan Atomic Energy Agency (JAEA), we are developing a new type of high repetitive X-ray laser driver using zigzag slab amplifiers for application researches. Furthermore, for effective X-ray lasing, we developed an OPCPA (Optical Parametric Chirped Pulse Amplification) preamplifier instead of a regenerative amplifier and we are studying the optimization of X-ray lasing by controlling the pumping conditions such as the ratio of pre and main pulses. And we are planning to perform applications using the high repetition rate X-ray laser. In this conference, we talk about the recent progress on the development of the high repetition rate X-ray laser and the application activities using it.