We report on the first experimental measurements made at a magnetic confinement fusion device of the tritium(T)-tritium(T) reaction indicating the presence of the intermediate two-body resonant reaction . During the second deuterium-tritium campaign (DTE2) at the Joint European Torus, measurements of fusion plasmas with high tritium concentrations, , heated with tritium neutral beam injection, were performed using the neutron time-of-flight (TOF) spectrometer TOFOR. We detect a peak in the neutron emission TOF spectrum consistent with the two-body resonant reaction. The TT neutron emission energy spectrum is modeled using an -matrix framework where the distributions of the most likely model parameters given our experimental TOF data are determined utilizing a Markov chain Monte Carlo approach. We compare our best estimate of the neutron emission energy spectrum with results obtained at inertial confinement fusion experiments at the OMEGA facility and find a spectral shape that is consistent with the energy dependency in the neutron spectrum observed at OMEGA.
@article{osti_2356949,
author = {Eriksson, B. and Conroy, S. and Ericsson, G. and Eriksson, J. and Hjalmarsson, A. and Brune, C. R. and Johnson, M. Gatu and Nocente, M. and Fugazza, S. and Rebai, M.},
title = {First measurement in a magnetic confinement fusion experiment of the <math> <mrow> <mmultiscripts> <mi mathvariant='normal'>H</mi> <mprescripts/> <none/> <mrow> <mn>3</mn> </mrow> </mmultiscripts> <mo>+</mo> <mmultiscripts> <mi mathvariant='normal'>H</mi> <mprescripts/> <none/> <mrow> <mn>3</mn> </mrow> </mmultiscripts> <mo>→</mo> <mmultiscripts> <mi mathvariant='normal'>He</mi> <mprescripts/> <none/> <mrow> <mn>5</mn> </mrow> </mmultiscripts> <mo>+</mo> <mi>n</mi> </mrow> </math> intermediate two-body resonant reaction},
annote = { We report on the first experimental measurements made at a magnetic confinement fusion device of the tritium(T)-tritium(T) reaction T + T → He 4 + 2 n indicating the presence of the intermediate two-body resonant reaction T + T → He 5 + n . During the second deuterium-tritium campaign (DTE2) at the Joint European Torus, measurements of fusion plasmas with high tritium concentrations, n T / ( n T + n D ) ≈ 0.99 , heated with tritium neutral beam injection, were performed using the neutron time-of-flight (TOF) spectrometer TOFOR. We detect a peak in the neutron emission TOF spectrum consistent with the two-body resonant reaction. The TT neutron emission energy spectrum is modeled using an R -matrix framework where the distributions of the most likely model parameters given our experimental TOF data are determined utilizing a Markov chain Monte Carlo approach. We compare our best estimate of the T + T neutron emission energy spectrum with results obtained at inertial confinement fusion experiments at the OMEGA facility and find a spectral shape that is consistent with the energy dependency in the neutron spectrum observed at OMEGA. Published by the American Physical Society 2024 },
doi = {10.1103/PhysRevC.109.054620},
url = {https://www.osti.gov/biblio/2356949},
journal = {Physical Review. C},
issn = {ISSN 2469-9985},
number = {5},
volume = {109},
place = {United States},
publisher = {American Physical Society},
year = {2024},
month = {05}}
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