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LiH as an energy absorber

LiH as an energy absorber. Temperature profile in LiH, Issue and concepts to solve issues. MATERIAL CHARATERSITC: High co-officient of thermal expansion compared to co-efficient of berryllium Low melting temperature 961k Variable conductivity (decreasing with temperature) Explosive material.

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LiH as an energy absorber

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  1. LiH as an energy absorber Temperature profile in LiH, Issue and concepts to solve issues

  2. MATERIAL CHARATERSITC: • High co-officient of thermal expansion compared to co-efficient of berryllium • Low melting temperature 961k • Variable conductivity (decreasing with temperature) • Explosive material

  3. ISSUES: • Above 2 mw, LiH absorber starts melting at center (attached pdf file of calculation) • Decrease in conductivity with increasing temperature puts more resistance for heat flow. • Current design shows that heat transfer takes place only along radial direction3

  4. Temperature profile for 1 mw K T

  5. SOLUTION: • Decreasing outside temperature: (attached excel sheet) • Passing law pressure gas between LiH absorber to cool LiH. (attached fig.) Since hellium and hydrogen both are ideal candidate for ionization cooling

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