1. W. Ebenstein Duke University Barrel Cooling  Thermally Conductive Epoxies: (samples sent to Anatoli) Vendor : Epoxies, etc. (Cranston, RI)  50-3170: Epoxy rubber – 1.7 W/mK Viscosity – 15,000 cps Pot Life – 3 hrs Cure Time – 24 hrs  50-3100: Hard Epoxy – 2.2 W/mK Viscosity – 55,000 cps Pot Life – 1.5 hrs Cure Time – 8 hrs  Compare – typical grease ~.8 W/mK  Many others are available

2. W. Ebenstein Duke University Barrel Cooling  Indiana Mockup studies: Cooling plate with H 2 O channel Water = 15° Power: 1.0 W / DTMROC 0.7W / ASDBLR.003” Al covering channel Good thermal connections are: DTMROC to cooling plate ASDBLR to cooling tab Measured temperatures: Cooling plate top/bot – 17° /18° ASDBLR stamp board - 27.5°

3. W. Ebenstein Duke University Module Tensions

4. W. Ebenstein Duke University Module tensions