Experimental testing of a prototype cantilevered liquid-nitrogen-cooled silicon mirror

Cutler, G.; Cocco, D.; Bentley, B.; Cervantes, M.; Chavez, P.; Chrzan, J.; DiMaggio, S.; Hussey, R.; Ilmberger, J.; Lindsay, J.; Lizotte, E.; McCombs, K.; Morton, S.; Paulovits, G.; Pearson, K.; Redding, C.; Smith, N.; Tokunaga, K.; Zehm, D.; DiMasi, E.; Padmore, H.

doi:10.1107/S1600577522010700

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Figure 7
We observed a temperature dependence of the effective heat-transfer coefficient h for both the short and the long mirrors. In both cases the temperature of the peak h was approximately 106 K. The clamping torque was 2.5 N m for the long mirror and 2 N m for the short mirror. Data from multiple thermal cycles are plotted, showing the relatively large cycle-to-cycle variation in h above 210 K.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 30| Part 1| January 2023| Pages 76-83

https://doi.org/10.1107/S1600577522010700

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