1 January 2001 Thermal-recovery optimization of SG-III prototype
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Thermal recovery of the main amplifier of the SG-III prototype is numerically simulated. The calculations indicate that, with a shot period of 4 h, we can achieve an acceptable laser slab average temperature and thermal gradient across the slab aperture through optimized active cooling for both the flashlamp cassettes and the slab cavities. After 4 h of thermal recovery, the average temperature and the largest temperature drop across the aperture of the laser slab will be less than 0.13°C above ambient and 0.11°C respectively. The active cooling for all the flashlamp cassettes will need a total cleaned-air flow rate of 80 m3/min (10 ft3/min per lamp) and a total nitrogen flow rate of 16 m3/min for all the slab cavities. Additionally, the temperature of the cooling gas in the flashlamp cassette must be reduced to ?1.0°C (relative to ambient temperature) during the first 2.5 h of the thermal recovery cycle.
© (2001) Society of Photo-Optical Instrumentation Engineers (SPIE)
Haiwu Yu, Haiwu Yu, Wanguo Zheng, Wanguo Zheng, Chengcheng Wang, Chengcheng Wang, Shaobo He, Shaobo He, Jun Tang, Jun Tang, Yong Liu, Yong Liu, Yu Yongmei Chun, Yu Yongmei Chun, } "Thermal-recovery optimization of SG-III prototype," Optical Engineering 40(1), (1 January 2001). https://doi.org/10.1117/1.1327502 . Submission:


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