K. Masuda et al., Identification of D-D fusion reaction by simultaneous neutron and proton measurements man inertial electrostatic confinement fusion device, FUSION TECH, 39(2), 2001, pp. 562-566
Simultaneous measurements of neutrons and protons were carried out to ident
ify D-D fusion reactions in an Inertial-Electrostatic Confinement Fusion (I
ECF) device, which is theoretically expected to produce D-D protons and neu
trons in a dense plasma core at the center. Experimental results showed an
excellent agreement of a measured proton energy with the predicted one, and
a strong linear correlation between neutron and proton yields, both indica
ting conclusively D-D fusion reactions in the IECF device. It is also found
, through comparison between neutron and collimated proton yields, that mor
e than 98 % of the fusion reactions take place outside the central core reg
ion under the present experimental conditions.