HEAT SYSTEM OF THE ACTIVE ELEMENT OF A PULSED LASER OF FINITE LENGTH (TEPLOVOI REZHIM AKTIVNOGO ELEMENTA OKG KONECHNOI DLINY),
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The analysis of pulse-type operation proceeds from the physical character of the heat exchange and the geometry of the body. An equation describing the temperature fields in a circular cylinder of finite dimensions is obtained. An analysis is also made of the cooling phase of the operational cycle. An equation is derived to describe the temperature field with constant cycle duration and duty factor, for any number of successive cycles. The theoretical findings are applied to a real case of two cylindrical bodies, one with a length equal to its radius, the other with a length-to-radius ratio of 101 the results show a much weaker effect of the end surfaces in the latter case.
- Lasers and Masers