Measurements of the relative gain and loss were made in CO 2 isotope lasers on the transitions terminating in the mixed states [10°0, 02°0JI and rlO00, 02°0Ju . Agreement was found with the calculated relative gain for 12C 16 0 2 , 13C 16 0 2 , and 12Cl6Q2.
The design and applications of high voltage range series current regulators are discussed. A sample design maintains the current to within 1% of a selected value between 100 μA and 50 mA over a 15 kV voltage range. The regulator is ideal for regulating or pulsing laser gas discharges. The circuit can also be used as a high output voltage amplifier; in this service it can deliver 10 kV at 5 kHz with 1.4% total harmonic distortion.
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