组合式片状放大器热恢复模拟研究
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摘要: 针对组合式片状放大器工作时的热量沉积特性，分析了氙灯箱和片腔的冷却过程，重点研究了激光介质钕玻璃片的热恢复过程。初步的热分析表明，为每支氙灯提供4.7×10-3m3/s的冷却气量以及为每个片腔提供7.6×10-3m3/s的冷却气量时能够满足装置4小时一发的运行频率要求。Abstract: We have investigated numerically the thermal recovery of the large aperture multi0segment amplifiers in the paper. With AMPHR3D, which is a thre-dimensional transient finite element heat transfer code, the temperature of Na:glass slab is investigated in detial, Preliminary thermal analysis indicates that active cooling with 4.7 10- 3m3s- 1 per flash lamp in lamp cassette cooperated with 7.6 10- 3m3s- 1 per slab cavity is sufficient to meet the 4 hour shot period of the lser system.
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Key words:
- disk amplifiers /
- therml recovery /
- numericl simulation
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