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Direct measurement of the fuel density-radius product in laser-fusion experiments

Journal Article · · Phys. Rev. Lett.; (United States)
The first direct measurement of fuel density-radius product rhoR in laser-fusion experiments is obtained by measuring the number of deuterium and tritium ions elastically scattered out of the fuel by 14-MeV fusion neutrons. They were recorded with the solid-state track detector CR-39. The energy spectrum of these particles is found to agree well with the theoretical result. This diagnostic was used in low- and high-compression experiments and measured rhoR values of 1.3 x 10/sup -4/ and 1.2 x 10/sup -3/ g/cm/sup 2/, with an uncertainty of approx.20%.
Research Organization:
Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623
DOE Contract Number:
AC08-80DP40124
OSTI ID:
7037810
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 49:7; ISSN PRLTA
Country of Publication:
United States
Language:
English