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D-/sup 3/He proton yield as a diagnostic for D-T and D/sub 2/ filled inertial confinement fusion experiments

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.332066· OSTI ID:6550266
The ratio of D-/sup 3/He to D-D reactions (R3He/R/sub DD/) is proportional to fuel rhoR for D/sub 2/ and D-T filled targets. For D/sub 2/ filled targets, the ratio varies as (R3He/R/sub DD/) = 0.14rhoR, for rhoR< or approx. =0.02 g/cm/sup 2/. For present day D/sub 2/ filled target experiments, it is necessary to detect 10/sup 4/ D-/sup 3/He reactions against a background source of 10/sup 8/ D-D reactions. For D/sub 2/ filled targets, detection of the 14.7-MeV proton of the D-/sup 3/He reaction can be accomplished with sheets of the solid state nuclear track detector CR-39 and metal foils. Spatial coincidence can be used as a means of eliminating background due to imperfections in the track detector and background due to protons in the CR-39 which are elastically scattered by D-D neutrons.
Research Organization:
Fusion Studies Laboratory, University of Illinois, 214 Nuclear Engineering Laboratory, 103 S. Goodwin Avenue, Urbana, Illinois 61801
OSTI ID:
6550266
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 54:2; ISSN JAPIA
Country of Publication:
United States
Language:
English