Electric lamp and discharge devices: systems – Pulsating or a.c. supply
Patent
1981-04-27
1984-09-04
Laroche, Eugene R.
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
315174, 315241R, 372 25, 372 70, 328109, H05B 4130
Patent
active
044699913
ABSTRACT:
A flashlamp system is described which permits the use of flashlamp tubes of increased diameter for higher average power capability while retaining the desirable characteristics of a small diameter, wall stabilized tube which includes small image size, short pulse duration and high ionization level. A series of low level pre-pulses are applied to the flashlamp prior to a main pulse to form a low density region along the flashlamp discharge axis for the main pulse for generating radially directed acoustic waves, thereby to confine the main discharge to a small low density region near the tube center. When Xenon flashlamps are used, this results in a higher ionization level of the molecules along the axis of the flashlamp which increases the ratio of the short-lived XeII emission to long-lived continuum, thereby effectively reducing pulse duration. Moreover, the arc generated in response to the application of the main pulse is localized at the tube center resulting in a smaller image to focus into an active laser medium.
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Friedman et al., "Transverse Flow Flashlamp Pumped Dye Laser", Jun. 1976, pp. 1494-1498, Applied Optics, vol. 15, No. 6.
De Luca Vincent
Jersey Nuclear-AVCO Isotopes, Inc.
LaRoche Eugene R.
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