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Three-target Vacuum Tube Performance and Specification:
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Tube structure
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All-glass double deck co-axial structure
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Glass material
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High borosilicate 3.3 glass
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Outer tube diameter and glass thickness
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Ø58±0.7mm;Glass thickness 1.6±0.15mm
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Inner tube diameter and glass thickness
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Ø47±0.7mm;Glass thickness 1.6±0.15mm
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Tube dimension
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58*1800mm
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Absorption coating property
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Coating material
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CU/SS-ALN(H)/SS-ALN(L)/ALN
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Sediment method
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Three Target magnetron sputtering plating
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Absorptivity
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α =0.92¡«0.96(AM1.5)
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Emission ratio
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Emission:ε=0.04¡«0.06(80¡æ±5¡æ)
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Vacuum degree
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P≤5.0X10-3(PA)
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Stagnation temperature
(temperature inside of empty evacuated tubes)
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260¡«300¡æ
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Average heat loss
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ULT 0.4¡«0.6W/(m2 *¡æ)
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Hail resistance
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Ø25mm
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