Study on the Effect of Wall Temperature on the Light Stability of Deuterium Lamp with Magnesium Fluoride Window
Deuterium lamps with magnesium fluoride window can provide radiation in the vacuum ultraviolet(VUV)and ultraviolet(UV)range from 115 nm to 400 nm,offering advantages such as high radiance,broad spectrum and compact size.They have important applications in fields like VUV standard light sources,hazardous gas detection,and semiconductor inspection.Wall temperature is an important factor affecting the UV light stability of domestically produced MgF2-window deuterium lamps.This paper quantitatively analyzes the impact of operating temperature on light stability,confirming through experiments that the optimal operating temperature range for stable light output from deuterium lamps is 118 ℃ to 130 ℃.A dual-layer fluid-cooled luminaire has been designed,which utilizes both air cooling and water cooling methods to ensure the deuterium lamp operates within the optimal wall temperature range.After optimization,the UV irradiance stability of the deuterium lamp is＜0.37％ .
deuterium lamp with magnesium fluoride windowheat dissipationluminaire designultraviolet radiationlight stability
万方数据
维普
