Abstract
An ambient plasma with a low temperature (<10 eV) and high density (>1019 cm-3) is formed from a rectangular slot in a capillary discharge. This plasma, moving at approximately 2 × 106 cm/s, exits out of a 1-cm-long, 200-μm-wide slit. A high-energy Q-switched laser in a cylindrical focusing geometry irradiates the ambient plasma, creating a rectangular parallelepiped of laser-heated plasma. The geometry, initial conditions, and versatility of this source are suited to the generation of amplified soft X-ray lasing along the 1-cm length. The capillary-dischage-produced ambient plasma lasts on the order of 8 μs, during which an ambient plasma is being produced and will replace the heated plasma approximately every 10 ns. Thus, one can create in a single event, i.e., capillary discharge and laser-pulse chain, numerous heated plasma pulses. In the current work, a mode-locked laser was used to produce a train of many pulses at the oscillator. Instead of switching out a single pulse, three pulses were switched out from the laser oscillator and delivered to a chain of amplifiers. This chain of laser pulses, spaced at intervals >10 ns, is focused onto the ambient plasma. This method can be used to construct an X-ray laser cavity.
Original language | English |
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Pages | 137 |
Number of pages | 1 |
State | Published - 1989 |
Externally published | Yes |
Event | IEEE International Conference on Plasma Science 1989 - Buffalo, NY, USA Duration: 22 May 1989 → 24 May 1989 |
Conference
Conference | IEEE International Conference on Plasma Science 1989 |
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City | Buffalo, NY, USA |
Period | 22/05/89 → 24/05/89 |