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Analysis of x-ray emission and tritium content from glass microshell inertial fusion targets

Conference ·
DOI:https://doi.org/10.1116/1.570909· OSTI ID:6653150
The inertial fusion program requires knowledge of the amount of gas contained within Microshell targets. Beta particles from the decay of tritium in a DT-filled shell interact with the glass walls producing x rays. Measurement of the intensity of the emitted x-rays yields information on tritium content and indirectly on total gas pressure in the shell. The x-ray yield is influenced by fill pressure, shell wall thickness, shell composition, and shell diameter. Experimental results have been obtained relating effects of fill pressure as well as glass composition on x ray production. These results have been compared with the energy deposition and secondary radiation as predicted by Monte Carlo code calculations. X ray spectra have been obtained with a Si(Li) detector. A qualitative measure of glass composition is obtained from the spectra: Si, Na, Al, K, Ca lines are clearly visible when present.
Research Organization:
KMS Fusion, Inc., Ann Arbor, MI (USA)
DOE Contract Number:
AC08-78DP40030
OSTI ID:
6653150
Report Number(s):
KMSF-U-1003; CONF-801037-32
Country of Publication:
United States
Language:
English