Abstract:
An analysis is made of the use of solar radiation in space to pump a cw gas-flow iodine laser emitting at 1.3 μ. It is shown that the high probability of dissociation of J2 molecules by solar radiation at an iodide vapor pressure of 0.25–0.5 kPa when the degree of concentration of solar radiation is 100–200 removes the constraint on the maximum duration of irradiation of the laser iodide associated with quenching of J(2P1/2) by J2 molecules. In this case, the maximum duration of irradiation is governed by heating and pyrolysis. Numerical calculations and analytical estimates are used to analyze three variants of a solar-pumped iodine laser: using pure CF3J iodide purified from J2, using a CF3J–(CF3N)2 mixture not purified from J2, and using (CF3)3 CJ not purified from J2. Problems of circulation, purification, cooling, and irradiation of the active gas are examined.
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