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Title: Measurement of fuel rho R in laser fusion targets using elastically scattered fuel ions

Thesis/Dissertation ·
OSTI ID:5071139

The first direct measurement of the fuel rho R in laser fusion targets has been achieved by counting the number of elastically scattered fuel ions, knock-on particles off 14.1 MeV DT-neutrons. Also measured for the first time was the knock-on energy spectrum which agreed well with predicted results. Both measurements required the use of thin CR-39 solid state track detectors. The presence of a proton background necessitated the development of three track criteria based on particle range and velocity to separate the knock-on deuterons and tritons from energetic protons with energies greater than 3 MeV. Also examined here is the immediate utilization of knock-on forward-scattered deuterons to probe non-uniform fuel compressions. This requires the use of at least two track detector packages to view the target from different orientations. A detailed discussion is also given on the future extension of the fuel rho R measurement when target rho R conditions exceed 4 mg/cm/sup 2/.

Research Organization:
Rochester Univ., NY (USA)
OSTI ID:
5071139
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English