| 摘要 |
PURPOSE:To cause luminescence with high efficiency and good reproducibility by producing a magnetic pinch by gas except an X-ray luminescent material at a place with the X-ray luminescent material arranged in, making the X-ray luminescent material plasmatic by high temperature plasma and emitting light. CONSTITUTION:A cylindrical gas flow 8 is released from a nozzle 3. Hydrogen or helium with low radiation loss except the X-ray luminescent material constituting a needle 5 is used and introduced from the exterior of vacuum through a lead-in tube 10. On supplying electric charge charged between both electrodes of a capacitor 6 by closing a switch 7 between electrodes 1 and 2, discharge is produced along the surface of the gas flow 8 between the electrodes 1 and 2. As the result, an electric current layer 9 is formed and contracted toward its center axis by electromagnetic force. The contracted current layer 9 reaching the center axis, the plasma gets high temperature by adiabatic compression and fuses the tip of the needle 5, vapor of which flows into the plasma. This vapor is made plasmatic, compressed to high temperature high density to be an X-ray generating source and thereby can cause luminescence with high efficiency and good reproducibility.
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