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Table 2 Results of maximum/minimum surface temperature and their differences on CCM made of Si or CCZ-EX® coated by silver (Ag) or aluminum (Al)

From: Thermo-optical simulation and experiment for the assessment of single, hollow, and large aperture retroreflector for lunar laser ranging

Material

Coating

Maximum temperature (°C, at noon)

Minimum temperature (°C, at noon)

Difference (°C, at noon)

Si

Ag

83.8

83.3

0.5

Si

Al

122.2

120.4

1.8

CCZ-EX®

Ag

100.8

78.4

22.4

CCZ-EX®

Al

197.9

104.8

93.1

  1. CCM surface coated by aluminum shows much larger temperature difference than the surface by silver coating due to large absorption α