Deuterium-tritium fusion reactors without external tritium breeding

Eliezer, S.; Henis, Z.; Martínez-Val, José M.; Piera, M.

doi:10.1016/s0375-9601(98)00258-8

Cited by 16 publications

(23 citation statements)

References 6 publications

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“…The first column gives our results when the only radiation effect included is bremsstrahlung losses, i.e., dE e /dt = W B , as in Ref. [1]. They are in reasonable agreement with Ref.…”

supporting

confidence: 80%

“…The purpose of this Comment is to show that its inclusion in the simulation totally changes the main conclusion of Ref. [1] The energy lost by electrons of temperature kT e in a photon gas by the inverse Compton effect is…”

mentioning

confidence: 87%

“…Using this estimate, it is readily seen that W C > W B for T e > 60 keV in the parameter range considered in Ref. [1], so that Compton effects cannot be neglected.…”

mentioning

confidence: 92%

“…The maximum ion temperature is only half the ≈ 300 keV found in [1]. Consequently, T i is not large enough to breed enough tritium to replace the initial tritium content.…”

mentioning

confidence: 97%

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Comment on “Deuterium-tritium fusion reactors without external fusion breeding” by S. Eliezer et al. (Phys. Lett. A 243 (1998) 311)

Gsponer¹,

Hurni²

1999

Physics Letters A

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Inclusion of inverse Compton effects in the calculation of deuterium-deuterium burn under the extreme conditions considered by Eliezer et al. [Phys. Lett. A 243 (1998) 298] are shown to decrease the maximum burn temperature from about 300 keV to only 100-150 keV. This decrease is such that tritium breeding by the DD → T + p reaction is not sufficient to replace the small amount of tritium that is initially added to the deuterium plasma in order to trigger ignition at less than 10 keV.

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“…The first column gives our results when the only radiation effect included is bremsstrahlung losses, i.e., dE e /dt = W B , as in Ref. [1]. They are in reasonable agreement with Ref.…”

supporting

confidence: 80%

mentioning

confidence: 87%

“…Using this estimate, it is readily seen that W C > W B for T e > 60 keV in the parameter range considered in Ref. [1], so that Compton effects cannot be neglected.…”

mentioning

confidence: 92%

“…The maximum ion temperature is only half the ≈ 300 keV found in [1]. Consequently, T i is not large enough to breed enough tritium to replace the initial tritium content.…”

mentioning

confidence: 97%

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Comment on “Deuterium-tritium fusion reactors without external fusion breeding” by S. Eliezer et al. (Phys. Lett. A 243 (1998) 311)

Gsponer¹,

Hurni²

1999

Physics Letters A

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“…Another solution has been proposed to be adding a small amount of tritium to the deuterium fuel in the form of DT x , where x is the ratio of tritium to deuterium in initial fuel 18,19 . It has been shown that in x ∼ 0.01 and with a given initial condition, namely, density ρ 5000 g/cm 3 , areal density ρR 12.5 g/cm 2 , and temperature T 10 KeV , internal breeding of tritium takes place.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Energy Leakage Probability on Burn Propagation in an Optically Thick Fusion Plasma

Mahdavi

Koohrokhi²,

Barfami³

2012

ISRN High Energy Physics

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In an optically thick plasma, the mean free path of bremsstrahlung photons is smaller than the plasma radius, and radiation can be treated as a photon gas in thermal equilibrium. In these conditions, the black body radiation spectrum exceeds the number of hot photons, and reabsorption processes such as inverse bremsstrahlung radiation and inverse Compton scattering become important. It has been shown that a dense fusion plasma like the one being used in ICF method is initially optically thick. When the fuel pellet is burning, the temperature of its electrons rises approximately greater than 90 KeV , and the pellet becomes rapidly optically thin. In this paper, we have shown that the energy leakage probability makes electron temperature remain low approximately smaller than 55 KeV , and as a result the fuel pellet remains optically thick during burning.

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Effect of Internal Breeding of Tritium and Helium-3 on the Ignition of an ICF Fuel Pellet

Koohrokhi

Azadifar

2016

J Fusion Energ

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Self-heating condition and following ignition in an Inertial Confinement Fusion (ICF) fuel pellet is evaluated by calculating the power equations, dynamically. In fact, the self-heating condition is a criterion that determines the minimum parameters of a fuel (such as temperature, density and areal density) that can be ignited.Deuterium is the main component of ICF fuels as large amounts of it are naturally available. In addition, the use of deuterium as a fuel in ICF causes the production of tritium and helium-3. However, pure deuterium has a high ignition temperature (T≥40 keV) which makes it inefficient. In this paper, the power equations are solved, dynamically, and it has been indicated that internal tritium and helium-3 production at early evolution of compressed deuterium fuel causes ignition at lower predicted temperatures.

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Deuterium-tritium fusion reactors without external tritium breeding

Cited by 16 publications

References 6 publications

Comment on “Deuterium-tritium fusion reactors without external fusion breeding” by S. Eliezer et al. (Phys. Lett. A 243 (1998) 311)

Comment on “Deuterium-tritium fusion reactors without external fusion breeding” by S. Eliezer et al. (Phys. Lett. A 243 (1998) 311)

The Effect of Energy Leakage Probability on Burn Propagation in an Optically Thick Fusion Plasma

Effect of Internal Breeding of Tritium and Helium-3 on the Ignition of an ICF Fuel Pellet

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