Abstract
Recent measurements of the D(d, Y){sup 4}He (Ey=25 MeV) reaction cross-section at low energies indicate values about 3 orders of magnitude higher than those obtained through extrapolations of previous experimental data. The new information triggers interest in the use of 25 MeV photons for diagnostics of fusion plasma. Both the spectral broadening of the neutron emission from the D(d, n)-reaction and that of the of the 25 MeV Gamma line offer two sensitive methods for the measurement of plasma temperature. Implementing this method presents an advantage over the classical neutron spectra broadening ((d, n)-branch) since it is simpler, more compact and cheaper. Moreover, once the necessary enhancement of the Y/n ratio is ensured, other complementary Y-diagnostics (under intense neutron fluxes) become possible. A preliminary version of such a system was developed using the 3D-MCSC-RWR subroutine complex of Monte Carlo random walk. The detecting system, composed of a HPGe-detector surrounded by a multilayer shield, appears to be very promising.
Robouch, B V;
Brzosko, J S;
[1]
Fubini, A;
[2]
Haegi, M;
[3]
Ingrosso, L
[4]
- Stevens Inst. of Tech., Hoboken, NJ (United States). Dept. of Physics and Engineering Physics
- ENEA, Frascati (Italy). Centro Ricerche Energia - Area Energia e Innovazione
- Associazione EURATOM-ENEA sulla Fusione, Frascati (Italy)
- Avogadro Energy Systems Inc., New York, NY (United States)
Citation Formats
Robouch, B V, Brzosko, J S, Fubini, A, Haegi, M, and Ingrosso, L.
Gamma diagnostics of thermonuclear plasma using D(d, gamma){sup 4}He reaction: Feasibility study.
Italy: N. p.,
1993.
Web.
Robouch, B V, Brzosko, J S, Fubini, A, Haegi, M, & Ingrosso, L.
Gamma diagnostics of thermonuclear plasma using D(d, gamma){sup 4}He reaction: Feasibility study.
Italy.
Robouch, B V, Brzosko, J S, Fubini, A, Haegi, M, and Ingrosso, L.
1993.
"Gamma diagnostics of thermonuclear plasma using D(d, gamma){sup 4}He reaction: Feasibility study."
Italy.
@misc{etde_10137807,
title = {Gamma diagnostics of thermonuclear plasma using D(d, gamma){sup 4}He reaction: Feasibility study}
author = {Robouch, B V, Brzosko, J S, Fubini, A, Haegi, M, and Ingrosso, L}
abstractNote = {Recent measurements of the D(d, Y){sup 4}He (Ey=25 MeV) reaction cross-section at low energies indicate values about 3 orders of magnitude higher than those obtained through extrapolations of previous experimental data. The new information triggers interest in the use of 25 MeV photons for diagnostics of fusion plasma. Both the spectral broadening of the neutron emission from the D(d, n)-reaction and that of the of the 25 MeV Gamma line offer two sensitive methods for the measurement of plasma temperature. Implementing this method presents an advantage over the classical neutron spectra broadening ((d, n)-branch) since it is simpler, more compact and cheaper. Moreover, once the necessary enhancement of the Y/n ratio is ensured, other complementary Y-diagnostics (under intense neutron fluxes) become possible. A preliminary version of such a system was developed using the 3D-MCSC-RWR subroutine complex of Monte Carlo random walk. The detecting system, composed of a HPGe-detector surrounded by a multilayer shield, appears to be very promising.}
place = {Italy}
year = {1993}
month = {Dec}
}
title = {Gamma diagnostics of thermonuclear plasma using D(d, gamma){sup 4}He reaction: Feasibility study}
author = {Robouch, B V, Brzosko, J S, Fubini, A, Haegi, M, and Ingrosso, L}
abstractNote = {Recent measurements of the D(d, Y){sup 4}He (Ey=25 MeV) reaction cross-section at low energies indicate values about 3 orders of magnitude higher than those obtained through extrapolations of previous experimental data. The new information triggers interest in the use of 25 MeV photons for diagnostics of fusion plasma. Both the spectral broadening of the neutron emission from the D(d, n)-reaction and that of the of the 25 MeV Gamma line offer two sensitive methods for the measurement of plasma temperature. Implementing this method presents an advantage over the classical neutron spectra broadening ((d, n)-branch) since it is simpler, more compact and cheaper. Moreover, once the necessary enhancement of the Y/n ratio is ensured, other complementary Y-diagnostics (under intense neutron fluxes) become possible. A preliminary version of such a system was developed using the 3D-MCSC-RWR subroutine complex of Monte Carlo random walk. The detecting system, composed of a HPGe-detector surrounded by a multilayer shield, appears to be very promising.}
place = {Italy}
year = {1993}
month = {Dec}
}