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Fusion Science and Technology
Latest News
In transition: Commercializing fusion power
Commercial fusion power is closer than ever. There are now around 30 U.S. fusion companies, several of which claim to be on track to connect to the grid as early as the 2030s.
Tokamak and laser inertial confinement approaches benefit from decades of research at facilities such as the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory and ITER, with alternative concepts including stellarator, magnetic mirror, and Z-pinch confinement also making notable progress as private and government funding for fusion increases.
M. Hakim, N. H. Shafrir
Nuclear Science and Engineering | Volume 48 | Number 1 | May 1972 | Pages 72-77
Technical Paper | doi.org/10.13182/NSE72-A22457
Articles are hosted by Taylor and Francis Online.
Experimental energy-loss data for 252Cf fission fragments in a number of gaseous compounds are presented. These data are compared with predicted energy loss data obtained by applying a modified semiempirical energy loss expression for the constituent elementary substances and by making use of the Bragg law of additivity of atomic stopping powers, yielding good agreement with experiment. Results obtained for energy loss in gaseous compounds consisting of both gaseous and solid components, stress the conclusion that within experimental uncertainties, the energy loss of fission fragments is independent of the physical state of the stopping medium. Thus, a reliable and accurate method for the estimation of fission fragment energy losses in composite systems of technological interest is provided. A commonly used method for estimating fission fragment ranges in composite materials was tested, and the deviation thus obtained, determined.
