Depositing Lithium Films to Simulate ICF Reaction Products

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2023-04-15 , 2022-10-17
Lei, Chunsun
Hotchkiss, Andrew
Martin, Andrew
Brown, Adam
Yuly, Mark
Mclean, James G.
Padalino, Stephen J.
Forrest, Chad J.
Sangster, Thomas C.
Regan, Sean P.
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Houghton University
A possible future experiment using Inertial Confinement Fusion (ICF) to measure low energy light ion nuclear cross sections has been simulated using the SUNY Geneseo Pelletron to activate a thin lithium target which was then rapidly evaporated, trapped, and detected. This experiment required a lithium film to be deposited in a vacuum of approximately 10 5 Torr onto the surface of a thin tungsten foil. The films were produced by heating natural lithium pellets to 400 C in a stainless steel boat through which 20 A of current was passed. The evaporated lithium was contained inside a stainless steel “house” inside the vacuum chamber, with a small opening on the top that allowed the lithium to reach the tungsten foil. The vacuum chamber was in an argon filled glove bag which allowed the films to be briefly removed and handled since lithium reacts vigorously with oxygen and water vapor. Funded in part by a grant from the DOE through the Laboratory for Laser Energetics, and by SUNY Geneseo and Houghton University.
XLI Annual Rochester Symposium for Physics Students, University of Rochester (Rochester, NY), April 15, 2023.
64th Annual Meeting of the APS Division of Plasma Physics, Spokane, WA, October 17-21, 2022.
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