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Nuclear analyses for the TC with the double layer RBSB concept
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Nuclear heating analyses have been performed with the MCNP6.2 and McDeLicious-17 codes for the Test Cell of the accelerator-based
IFMIF
-
DONES
(International Fusion Materials Irradiation Facility – Demo Oriented Neutron Source) irradiation facility.
Heat density for the IFMIF/EVEDA beam profile with 10x5 cm2 footprint studied with D+ beam energy deposition in the Li jet at the TA d-Li footprint area. •A more focused deuteron beam with a 10x5 cm2 Li footprint caused a factor of 2 increase in heat deposition in Li (peak of 211 kW/cc vs. 110 kW/cc). Considering that the initial temperature of Li entering the target is 300 C, for a 20x5 cm2 footprint the temperature increase to 428.8 C is 128.8 C, while for 10x5 cm2 it rises up to 552.2 C by 252.2 C. That means a more concentrated beam of 10x5 cm2 resulted in a similar ratio of temperature heating up as the heat deposition, delta temperature increased due to the halved beam by the same factor of 2. Operation of two accelerators with double D+ current of 250 mA with IFMIF parameters caused double-times heating of the TC materials.
Integral heating in the TC components: one beam IFMIF-DONES (I = 125 mA) vs. two beams IFMIF (I=250 mA). A beam profile with a 20x5 cm2 footprint has been used in both cases.
Title: Nuclear analyses for the TC with the double layer RBSB concept
Description:
Nuclear heating analyses have been performed with the MCNP6.
2 and McDeLicious-17 codes for the Test Cell of the accelerator-based
IFMIF
-
DONES
(International Fusion Materials Irradiation Facility – Demo Oriented Neutron Source) irradiation facility.
Heat density for the IFMIF/EVEDA beam profile with 10x5 cm2 footprint studied with D+ beam energy deposition in the Li jet at the TA d-Li footprint area.
•A more focused deuteron beam with a 10x5 cm2 Li footprint caused a factor of 2 increase in heat deposition in Li (peak of 211 kW/cc vs.
110 kW/cc).
Considering that the initial temperature of Li entering the target is 300 C, for a 20x5 cm2 footprint the temperature increase to 428.
8 C is 128.
8 C, while for 10x5 cm2 it rises up to 552.
2 C by 252.
2 C.
That means a more concentrated beam of 10x5 cm2 resulted in a similar ratio of temperature heating up as the heat deposition, delta temperature increased due to the halved beam by the same factor of 2.
Operation of two accelerators with double D+ current of 250 mA with IFMIF parameters caused double-times heating of the TC materials.
Integral heating in the TC components: one beam IFMIF-DONES (I = 125 mA) vs.
two beams IFMIF (I=250 mA).
A beam profile with a 20x5 cm2 footprint has been used in both cases.
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