M-π-n type Multi-pixel CdTe high-energy radiation detectors were fabricated by excimer laser processing technique combined excimer laser pattern doping with laser ablation method. The strip detectors showed high-energy resolution and uniform peak levels. The color high-energy radiation images colored by peak energy were obtained with high-energy resolution by 128pixel CdTe detector with ASIC chips.
Two x-ray pulse generation methods and applications are described; a photo-excitable x-ray tube and femtosecond laser-plasma x-ray source using aqueous solutions of electrolyte. Characteristics of x-ray pulses from the two sources such as pulse width and x-ray emission spectra are described. Applications of the x-ray pulse for material science such as time-resolved x-ray diffraction are also introduced.
A high intensity optically-pumped far infrared laser has been developed in order to be used for a production of gamma-ray by inverse Compton scattering. Performance of a developed optically-pumped FIR laser are presented. A correction coefficient of the laser power meter is obtained by measurement of reflectivity of the detection surface of the power meter. The output power 1.61 W has been obtained for the 9P (36) C0_2 laser pumped 118.8μm CH_3OH laser. A linear polarization of the FIR laser beam is 93%. A long term stability of the FIR laser power is ±1.0% at the power of 80% of the maximum.
X-ray microbeam is considered to be one of the key technologies in the third generation synchrotron radiation light source. Many tepes of X-ray microbeam and microscope have been developed at seveal synchrotron radiation facilities. The recent progress on X-ray microbeam/microscopy at SPring-8 is reviewed.