In order to clarify an influence of initial spin density or optical absorption coefficienton the pulsed-laser annealing effect, we have performed systematically ion backscatteringand channeling (RBS) analysis and ESR measurement as a function of spindensities in ion-implanted Si samples. An effect of implanted ion species has also beeninvestigated. It was found that the initial spin density can yield a good criterion forpredicting the annealing effect below implanted doses of 1×10¹⁶ /cm² because the spindensity is strongly correlated with the optical absorption coefficient. From spindensitymeasurement, the initial absorption coefficient of as-implanted Si layer was foundto be a very important factor which dominates the effect of laser annealing even if thereis a nonlinear absorption mechanism. As to impurity effect, it was also clarified thatlaser annealing effects are much different among ion species. This seems to be duemainly to the difference of segregation coefficient of impurity in Si.

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The characteristics of NH₃ laser pumped by a TE CO₂ laser pumped NH₃ laser is discussed. 38 IR laser lines in the wavelength region from 10.7 to 13.3μm wser observed by CO₂, 9R (30) line. The emission intensity of each line depended on both the temperature of the NH₃ laser tube and the ratio of NH₃ to N₂. Most of the laser lines could, however, be observed under a same condition. 12.280μm line was observed for the pumping of CO₂, 9R (30) and CO₂, 10P (32) lines respectively. The slight frequency difference in both cases were discsuued. Furthermore, 12.078μm line, which was the strongest emission line in this experiment, was used to pump an InSb spin-flip Raman (SFR) laser, successfully.

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High-power laser action on the 308-nm band of XeCl excimer excited by electric discharge is reported. A double pulse forming line formed by two parallel flat-plate water capacitors is terminated by a TE lasertube through a double surface gap. An output energy of 1.2 J (60 ns FWHM) per pulse is obtained fora mixture gas of HCl : Xe : He = 3 : 20 : 2600 Torr. The output energy increases by a factor of 1.67 compared with the traditional single pulse forming line.

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In this paper is concerned with technique to fabricate thin deuterated polyethylenemicroshells for fusion fuel. As the procedure of producing for thin polyethylene shell, was used the emulsion method.
The present experimental results show that, the polymer state hollow pellets of ca. 110μm diameter and a few micron shell thickness obtained with W/O/W emulsion method.

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