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We have developed optical coherence tomography system with KTN optical probe for a diagnosis in the orthopedic surgery fields. The present system demonstrates that biological image was measured by using KTN optical scanner for having degree of freedom in sample arm as optical coherence tomography. In addition, the developed optical coherence tomography (OCT) system has shown feasibility for imaging biological tissue in orthopedics. The system was shown to have a resolution 14.2 μm for biological tissue in few mm depths. The sensitivity to be measured is 92.3 dB.

A low-background high-resolution Ge detector surrounded by neutron scatterers was applied to investigate fast neutrons from the electrochemically loaded Pd-D system. The neutron flux was obtained by measuring the yields of the γ-rays following inelastic scattering of the fast neutrons from nuclei in the scatterers. The detector was shown to be very sensitive in the search for rare neutron events such as d-d fusion at room temperature. The observed spectrum shows no statistically significant excess of the γ-rays above the background. The upper limit on the fusion rate was obtained as λ f <1.6·10 -24 (ddn)fusions/(dd)pair/s.

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